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Notes: Rack power bringing 1.25A (1250mA) on both the +12V and -12V rails. There is a 5V rail, but it pulls from the +12V rail, up to 750mA. So only use the +5V rail if you have to.

Comes with 12-position flying bus cable and wall power supply. The wall power supply is the same unit as After Later Audio use on their cases, so there's plenty of headroom and you don't have to worry about memorizing which amperage is for which.

This should be roughly enough for 1 rows of modules in a 104hp case. If you need power for 2 rows, check out The Force module.

Notes: Rack power bringing 2.5A (2500mA) on both the +12V and -12V rails. There is a 5V rail, but it pulls from the +12V rail, up to 750mA. So only use the +5V rail if you have to.

Comes with 12-position flying bus cable and wall power supply. The wall power supply is the same unit as After Later Audio use on their cases, so there's plenty of headroom and you don't have to worry about memorizing which amperage is for which.

This should be roughly enough for 2 rows of modules in a 104hp case. If you just need power for 1 row, check out our Warp Drive module.

Notes: After Later's first ladder filter is in stereo. You'll get HP, BP. LP2, and LP4 outputs for each side. Please read below on the HP and BP outputs, as they are a bit temperamental.

Along with all of the great traditional sounds of a ladder filter, After Later have added a bias knob which starves ladder transistors of bias current. This can create some fun detuning, glitchy, and warbly sounds. It is recommended that you turn the resonance up slightly in order for it to sound best. Turning the bias will mess with the cutoff frequency and resonance settings so it takes some knob tweaking to master it. There is decent volt/octave tracking for about 3 octaves.

The HP and BP are possible due to pole mixing. When combined with the level control and the resonance it can lead to some atypical behaviours. When keeping the resonance low, and you'll need to manage the level control to get a typical HP and BP responses.

Notes: This is an exact hardware replica of the Mutable Instruments Blades module.

This model uses the original "hard-to-find" opamps, but After Later have substituted V2164M with AS2164D. All of After Later's products use AS2164D and there should be no measurable change in behaviour.

Notes: Popple is an 8hp multimode stereo filter based on the Mutable Instruments Ripples V1 filter section. Popple maintains the buttery smoothness of Ripples filter while giving you two separate audio paths. The audio paths share a resonance, control, a frequency cutoff control, resonance CV input, and a v/oct cutoff CV input. Each channel then has it’s own cutoff CV input with attenuverters (which are normalled to a 2.5V signal).

Popple will also self-oscillate at high resonance settings, when coupled with the v/oct CV control, it can also act as a dual sine wave oscillator.

Notes: Keanu is a partnership with Tim Held and Podular Modcast. At its core, Keanu is a standard 4x4 matrix mixer and VCAs on each output and switch to choose between unipolar or bipolar controls. After Later have also added modulation sources normalled into each channel. So you get some great modulation variety, but can also mix in your external sources.

Channels 1 & 2 CVs are clockable looping function generators with controls for rise/fall lengths, and equipped with end of rise/fall trigger outputs.

Channels 3 & 4 are each a "meandering" voltage source, created by 3 LFOs that are all at different frequencies. There are 3 CV inputs (total) to control their individual rates. You can also add slew to each channel individually to change the oscillators from square to triangle, and this slew also applies to external voltages sent into their channel.

Notes: 8 channels of audio or modulation over ethernet. There are two modules and a 3' CAT7e cable to connect them together. There are 8 total channels that are unbuffered and bi-directional. The primary usage is to connect two cases or just send a bundle of signals from one part of your larger case to another. You also get the option of buffering up to four channels on each side. This gives you a local copy of the signal and sends buffered copy to the other module, saving you from having to use a MULT to keep a local copy.

Some notes:

When one side of the Light Rail is in buffered mode, you cannot send signals from the opposite side on those 4 buffered channels (the other 4 channels can still be used in bi-directional mode)

If you are after a different longer/shorter cable, you will get the best performance with CAT7e as it offers the shielding, which is used for the ground.

While the cross channel bleed is minimal, you will notice some very minor cross talk between the channels.

Notes: A 6HP version of Mutable Instruments Peaks that adds CV inputs and attenuverters for each of the four parameters.

It can be an ADSR-style envelope generator, an LFO and a drum emulator. By default, the Dead Man's Catch (DMC) firmware will be loaded, which adds the Alt ENV, ALT LFO, ALT Tap, Alt Drum modes below.

The module is calibrated, comes with a power cable, and a one year warranty.

Additional Dead Man's Catch firmware modes:

Basic (original modes):

Envelope
LFO
Tap LFO
Bass/Snare Drums

Alternative ENV:

Double attack envelope
Repeating attack envelope
Looping envelope
Randomized AD envelope
Bouncing ball envelope

Alternative LFO:

Frequency-modulated LFO (folded sine FM)
Frequency-modulated LFO (random FM)
Varying wave shape LFO ( folded sine WS mod)
Varying wave shape LFO ( random WS mod)
Phase-locked loop oscillator

Alternative TAP Mini-sequencer:

ModSequencer
Pulse Shaper
Pulse Randomizer
Turing Machine
Bytebeats

Alternative DRUM:

FM drum Generators
Randomized bass and snare drum generators
Randomized high hat

Notes: Third-party clone of the open-source Mutable Instruments Plaits oscillator/sound source. All the same functionality in a compact 8hp format with full-size knobs for the key functions.

Supplier's Notes:
Functionally identical clone of the Mutable Instruments Plaits. Beehive strikes a nice balance between size, reducing 12hp down to 8hp, and playability by offering full size knobs for the four main functions. Beehive also retains the same depth of the original module at 25mm. This module uses After Later's new aluminum knobs which have a nice non-slip texture and allow for more finger space over the standard 1900H Davies knobs.

Notes: Morcom Expander for micro Turing Machine (Alan)

An expander for After Later's Alan module (a smaller version of the Turing Machine) that exposes the pulse outputs from the main Alan module. You get 7 seven random outputs and then 4 that are derived from other 7 outputs. When 1 and 2 are high then the 1+2 outputs is high. You can get some great rhythmic effects using these in conjunction with the main stepped CV output.

The module comes with the required cable to connect to the main module. The panel is designed to compliment Alan, After Later's micro version of the Turing Machine.

The module comes with a 1 year warranty.

Notes: uO_C

This is a new build of Micro Ornament & Crime, a variant of the popular Ornament & Crime designed by mxmxmx. The firmware is Stock by default.

The module is fully assembled, tested, and calibrated. The calibration is done with a 6.5 digit multimeter, itself recently calibrated, to ensure you get the highest accuracy from your module. Eurorack power cable included.

Notes: This is a buffered/active mult with LED indicator. You get two channels of 1 to 3 multiples within a 2HP module. The output of channel 1 is normalled to channel 2 so it can also be treated as a 1 to 6 multiple as well.

Active vs Passive mults:

With a passive mult you are effectively just plugging multiple things into the same jacks. This will often cause some voltage drop in each of the signals. With an active (or buffered) mult you will not get any voltage drop from the original signal.

Comes with a black and gold panel, power cable and one year warranty.

Usage note:

The red stripe of the power ribbon cable goes towards the top of this module.

Notes: This is an exact hardware replica of the Mutable Instruments Clouds.

Notes: Two fuzz channels based on the fuzz face circuit with a built-in pickup simulator.

Gnarly is a 7 knob beast that will destroy whatever you throw at it. It has many dead zones in the pots that will adjust based on the position of other pots. It's all about finding the sweet spots and living on those fine edges. The transistor pairs on this section are replaceable.

Oomph is a 5 knob bass friendly take on the fuzz face and compliments the upper harmonics of the Gnarly section.

Pickup simulator - Fuzz circuits offer unique sound when paired with the inductance of the pickup coils in a guitar. This why it is often suggested to have fuzz pedals as your first in a pedal chain. So After Later built-in a coil to simulate your eurorack signal being emitted by a guitar pickup. After Later also included a pickup simulator output so you can use it to interface with other fuzz instruments (pedals, modules, etc.).

As an added oddness - you can also input your guitar into the pickup sim output (just don't plug anything into the normal input). This will still get you Eurorack level output. Please don't input Eurorack levels into the pickup sim output.

Tips - Experiment with the pickup simulator and buffered signal. Use the PS.Level to keep the signal low, borderline on cutting out. You find lots of joy in the gnarly section by keeping this level at the edge.

Width: 10hp
12V: 15mA
-12V: 10mA

Notes: Clouds

This is a new build of a Mutable Instruments Clouds. This module is identical to the now discontinued factory made Clouds. This module loads parasites 2.01 Firmware by default.

The module is fully assembled, tested, and calibrated. Eurorack power cable is included.

Notes: This is an exact hardware replica of the Mutable Instruments Veils 2020 module. After Later used the "hard-to-find" OPA1679 opamps, but we did switch the package from TSSOP to SOIC, to keep costs down. It is the same part/specs, just a different package.

Based on open source designs by emilie gillet under Creative Commons (CC-BY-SA) license.

Width: 10hp
12V: 50mA
-12V: 50mA

Notes: Alan (micro Turing Machine) Shift Register Based Sequencer

The randomness of the Music Thing Modular Turing Machine, shrunk down to 6HP. Alan retains all of the same functionality as the original including the connectors for the expanders.

While this module has little to do with the original Turing Machine (by Alan Turing), it is a shift register based sequencer. You cannot program this sequencer, instead it builds random sequences that can be locked in.

Alan comes tested, calibrated and ready to bring random voltages.

The After Later Audio panel is black and gold and made from FR4. The package will include a power/ribbon cable and a one year warranty.

Notes: An 8hp version of the retired Mutable Instruments Grids. It is an identical functional clone, so it will behave in the same was as the full size version, and will run any firmware that runs on the full size version.

Notes: Bartender is the centerpiece of the mixer system. Four stereo channels, with two stereo aux send and two stereo returns. Each channel can be used in a mono mode where both channels are mixed. If you want to do eight channels of mono, you can put the channels in stereo mode (I know it feels backwards) and then use the pan control to control the crossfade between each channel, and then take the mono output. There is a built in cueing system so you can monitor channels in your headphones and control the blend with the main output. You can expand a Bartender with both a Barback and/or another Bartender. When connecting two Bartenders, the main level control on the 'expander' Bartender acts as a group control.

Notes: This useful module is a Bipolar Mixer, DC voltage source and Linear DC coupled VCA.

- With no input to channel 1 the Input 1 pot becomes a voltage source with a range of +/- 6V.
- The control pot and input for channel 4 can be switched to become an offset control and/or a second CV input for the VCA.
- Input 3 has 2x gain, so it can amplify lower level CV's too.
- All inputs are bipolar, which means that either non-inverted or inverted version of the input signal can be added to the mix depending upon the Input control being turned clockwise (non-inverting) or anti-clockwise (inverted). The 12'o'clock position is zero.

Notes: Five-channel mixer with mutes, built-in VCA, switchable overdrive and LED level meter. Simple, straightforward, high-quality stuff from AJH.

Supplier's Notes:
The MiniMod Muting Mixer & VCA is a 10HP wide, five channel audio mixer with many useful features. It is available with either a black (Dark Edition), or a silver front panel.

The mixer section has five input channels, and each channel includes a bi-colour tactile LED switch that can instantly mute or un-mute the channel, replicating the oscillator on/off switches on the original Model D synthesiser. This arrangement is more convenient than regular switches as each illuminated switch shows the on/off status of the associated channel and multiple buttons can be pressed at once, making it very useful for live performance.

AJH have also included a four segment LED level meter so that the overall level can be seen at a glance and adjusted to prevent the output from getting too "hot" and causing distortion in other modules further downstream.

It also features a VCA that is integrated into the output section, and this can be switched from linear to exponential response - this allows it to be used as a voltage controlled sub mixer or as a stand alone VCA with five inputs.

Lastly, AJH added a wonderfully soft and warm sounding overdrive circuit that can be switched in to add smooth, tube like distortion. This works in a similar fashion to a master volume guitar amplifier, so the amount of overdrive can be varied widely with different settings of channel and master output levels.

Module Width: 10hp
Module Depth: 26mm (Including power lead)
Current Usage: 55mA Positive, 25mA Negative

Notes: Truly unique one from AJH, based on the sound of NASA's Apollo voice transmissions. Think outside the box and process drums and synths through this thing. Freaky. May or may not allow you to communicate with real astronauts.

Supplier's notes:
Here's a bit of fun for all fans of space missions from the previous century! This module is designed to re-create the ground to space and space to ground transissions from the Apollo era.

To be "Mission Control Houston" the Quindar PTT (push to talk) button adds a short 2,525Hz Qindar tone to the start of the transission, then at the end of the message the PTT button or switch is released and a short 2,475Hz Quindar tone is added to the audio. The bandwidth is slightly reduced in this mode.

For "Astronaut comms" we press the Capsule PTT switch, which allows us to add coloured noise, distortion, bandwidth reduction and either hum or LGM (Little green men space tone) noise to the audio signal. A deep space electret condenser mic is supplied and an be used with the MIC input.

Obviously the Lunar Module can also be used to add noise, hum, distortion, bandwidth reduction and LGM noise tone to any modular level audio too, and if the mic is left attached theremin like sounds can be added too with careful loudspeaker feedback.

Notes: The Gemini 2412 is a creamy, extremely fat sounding dual filter based on vintage Oberheim SEM circuits. In addition to high-pass, band-pass and low-pass, there is the infamous variable filter type, which allows you to blend between several characteristics. Thanks to its dual concept, serial and parallel modes of operation and an ingenious modulation system, the Gemini 2412 should not only be able to achieve classic, extremely bulbous results, but also wafting stereo effects and lively formant sounds.

Notes: The Low Fat is a new 2hp Eurorack module by AJH Synth, it's a High Pass filter, with frequency control by either manual pot, and/or external CV with attenuator. It's intended to compliment other filters, particularly low pass VCF modules, in practical tasks such as removing excessive low frequencies, for example when the bass is swamping a mix. It can be switched between 6dB (1 pole) response and 12dB (2 pole) response.

By patching a CV signal to the FCV input it can be voltage-controlled and used musically as with any other VCF. When used in conjunction with a LP filter it forms a fully customisable band pass filter, allowing the range of passbands to be cherry-picked. Feeding in a 1V/Oct pitch CV and setting the FCV pot to a suitable level allows it to track an incoming pitch CV, so the amount of High Pass filtering remains constant as the pitch of the incoming VCOs traverse up and down the frequency range. This can be particularly useful in creating percussive sounds, such as snares and hats, but also on sequenced bass lines. Since it is only 2HP it's a great way to occupy one of those frustrating gaps in your eurorack modular case with something that is deceptively useful, and adds another dimension to the classic bass monster that is the Transistor Ladder Filter.

Dimensions:
2 HP
26 mm deep

Current Draw:
9 mA +12V
12 mA -12V
0 mA 5V

Notes: Serious versatility from AJH here. Based on the circuits from the Oberheim Matrix 12, the Matrix VCF offers a whopping 16 different fully analogue filter modes, each with two different resonance models. All bases covered.

Supplier's Notes:
Presenting the new AJHSynth Matrix VCF - this may well be the most versatile Eurorack VCF ever.

This amazing multimode filter and VCA offers sixteen different filter types, and two different resonance models on each, totalling an incredible thirty two assorted resonant filters to choose from. AJH Synth have also included manual and CV control of filter type selection, along with 16 LED's that give a clear visual indication of which filter type is currently selected.

The filter core circuitry is based on that of the rare and highly sought after Oberheim Matrix 12 synthesiser, and of course has an all analogue signal path. The Matrix 12 VCF originally offered fifteen filter types, however AJH Synth have expanded this to 16 with the addition of AP4, a full four pole all pass phaser mode.

AJH Synth have added a unique P-Vox resonance distortion and overdrive circuit that changes the character of the resonance completely, and can force all of the filter modes into self oscillation. This effectively doubles the filter variants and hugely broadens what is already a very impressive sound pallet.

Other features include an inbuilt VCA with Input and Output Level controls, a Peak level LED, CV control of resonance, and of course the legendary AJHSynth build quality.

The Matrix VCF in depth

After two years of development AJH Synth have finally released what they consider to be the most versatile Eurorack VCF & VCA ever. Like many other AJHSynth modules it uses the very best vintage analogue circuitry as the starting point for the design, and in this case, the filter was chosen from the rare and very desirable Oberheim Matrix 12 synthesiser. AJH Synth expanded this from the original fifteen filter compliment to sixteen distinct filter types by adding in a really useful four pole phaser!

So, behind the compact 14hp front panel lies sixteen distinct filter types, including all of the favourites: Low Pass filters with a choice of one, two, three or four poles, Band Pass filtering with two or four poles, High Pass filtering with one, two or three pole options, along with Notch filtering and four complex, combination filter types. Finally, a four stage phaser with two types of emphasis that can be forced into tuneful self-oscillation!

However, this is far from the end of the story. AJH Synth decided to use their design expertise to add in some crazy resonance distortion circuitry, that could be switched on from the front panel. This was inspired by the filter from the Soviet Polivoks synthesiser, but again the implementation used here is considerably changed, improved, and best of all this can be applied to all filter types! This completely changes the filter character when engaged, and it forces all of the filters into self-oscillation at higher resonance settings. Better still, the oscillation waveforms are more harmonically rich than the usual sine waves - everything from gloriously fat to screaming and angry! Best of all, this takes the number of different filters up to a massive thirty two variations!

AJH Synth put a lot of thought into the ergonomics and how to select the individual filter type. Filter type can be changed either with the front panel Mode knob, or by using a control voltage patched to the MODE CV input. The selected filter mode is displayed by the LED next to the filter in use. This is also very helpful when using a step sequencer to change filter mode as it gives a real time display of the filter chosen as you take the step CV voltage up or down, while setting up each individual step.

Lastly, AJH Synth have also included a VCA hard-wired to the output - simply patch an envelope or an LFO to the VCA input, connect a VCO to the audio input and you have a synth voice (with a choice from 32 different filters!) using only three modules!

Thirty two Eurorack VCF's and a VCA would most certainly take up a lot of rack space - AJH Synth have got all of this into 14hp and managed to have a really finger-friendly user interface, without it feeling cramped.


Sixteen distinct filter modes to choose from

Here's a list of the different filter modes that are available:
1 - Four Pole Band Pass
2 - Three Pole High Pass combined with One Pole Low Pass
3 - Three Pole All Pass combined with One Pole Low Pass
4 - Two Pole Notch combined with One Pole Low Pass
5 - Two Pole Low Pass
6 - Four Pole All Pass (Phaser)
7 - Four Pole Low Pass
8 - Two Pole Band Pass
9 - Two Pole High Pass combined with One Pole Low Pass
10 - Three Pole High Pass
11 - Three Pole All Pass
12 - Two Pole Notch
13 - One Pole Low Pass
14 - Two Pole High Pass
15 - Three Pole Low Pass
16 - One Pole High Pass

All of the above filter types can be further altered by switching in P-Vox mode, this doubles the list up to thirty two different filter variants!

P-VOX MODE

Transforming the resonant character of every filter type

This magical switch completely transforms the resonance of the filter core by overdriving it in a similar fashion to the filter from the Soviet Polivoks synthesiser, which was renowned for it's powerful, aggressive character.
In common with the Oberheim Matrix 12 VCF, some of the sixteen filter types will not normally go into self-oscillation, however when you switch on P-Vox mode all sixteen filter types can be forced into self-oscillation at higher resonance settings. But that isn't the only change, the self-oscillation waveform is not the usual sine waveform, it is a rather more interesting and harmonically rich waveform that varies according to the filter type chosen - generally Low Pass modes produce the nearest to regular sine waves, whereas other filter types can produce very much more complex waveforms as can be seen in the diagrams below. It does not require any audio input for this, it can be a stand alone oscillator. Most of the filter types will track 1V/Oct reasonably well over a three to five octave range, so it can be used as a VCO with a few interesting waveshapes!

Of course, P-Vox mode isn't just useful for self-oscillation, it adds lots of character to any audio signal as P-Vox resonance is switched in.

Module Width: 14hp
Module Depth: 29mm (Including power lead)
Current Usage: 56mA Positive, 36mA Negative

Notes: Two independent Contour Envelope Generators in a single 12hp wide Eurorack module. These are very accurate replicas of the Model D contour generators, with identical circuitry and component values running on the correct +9.3V and -10v supply voltages of the original; so they exactly replicate the original envelope response along with all of it eccentricities. Extra features include manual trigger buttons and envelope status LED's.

The contour generators played a larger part in the sound of the Model D than many people realise. There are two factors that make them unique, firstly the exponential slope when is used in conjunction with the (near) linear slope of the original VCA which is responsible for the famous Model D "punch". Secondly, the re-trigger behaviour is quite unique, multiple retriggering increases the output level so that either the volume increases incrementally, or the filter opens incrementally with each extra key press.

AJH Synth have added independent Decay switches for each individual Contour Generator rather than the shared switch on the original synthesiser, these switches change the Contour response from AD (switch up) to ADSD mode (switch down).

Notes: The Tone Science Chance Delay is a unique concept in Eurorack modules as it combines chance and randomness, with pulse delay and pulse conditioning. It is a collaboration between electronic musician/composer Ian Boddy and AJH Synth.

It can perform as a Chance generator, but is also capable of pulse stretching for Trigger to Gate conversion, pulse shortening for Gate to Trigger conversion, Gate Delay, Sub Bass Generation and also "divide by n" clock division.

There is a wide range of control and all functions can be operated manually from the front panel or can be automated using external CV voltages. Chance can range between 0 to 100%. The Gate out can be delayed by anywhere between from 0.5mS to 30 Seconds, and the output Pulse length can also vary from 0.5mS to 30 Seconds.

The TRIG push button allows manual triggering of pulses, also determined by the Chance control, and a green LED shows the output pulse status.

Includes a handy "Gate pass through" mode; when the Length control is set to zero the incoming pulse or trigger will still be determined by the Chance and Delay controls, whilst the outgoing gate length will be the same as the incoming gate length.

Compact 8hp form factor and very low power consumption make this an excellent addition to any Eurorack system.

Key features:

Chance, Gate Delay time and Pulse Length can all be set manually or controlled using external CV voltages.

The 'TRIG' push button allows manual triggering, and Chance will be applied to any manual triggering too.

Fast processing allows operation into the lower audio range, so it can perform sub bass generation on drone type sounds. In this mode the Length pot (or an external Length CV) can be used to change the PWM of the output waveform.

After the initial trigger pulse has been acted on, further incoming pulses are ignored until the current cycle has finished. This useful feature allows it to perform "divide by n" division on gate pulses, so it can be used for clock division, and the delay function can be used to add a "swing" away from the rhythm.

Gate pass through mode - if the Length pot is set to zero, then the incoming gate length is preserved, so in this case the gate has Chance and Delay time applied to it, but the outgoing gate length is the same as the incoming gate length.

By setting Chance to 100% and Delay to zero (0.5mS) it can be used as a Gate to Trigger converter, or a Trigger to Gate converter, depending on the Pulse length set with the LENGTH control. We can also use an external Length CV to shorten or increase the length of the output pulse in real time.

Fast and slow ranges for both DELAY time and PULSE length - Fast range is 0.5mS to 2 Sec and Slow Range is 2 Sec to 30 Sec.

Green status LED shows when the output pulse is high.

Front panel controls

Chance Control and CHA Input

This sets the probability of an incoming trigger or gate being passed through to the Pulse Generator circuit. The chance can be set anywhere between 0% and 100%.

The CHA input allows an external control voltage (CV) to control chance remotely. In this mode the Chance control acts as an attenuator for the incoming CV. With the Chance control fully clockwise a CV of +5V will give 100% chance, and lower CV voltages reduce the Chance accordingly. For example, a +2.5V CV will give a 50% chance. The attenuator function is useful if we are using higher control voltages of for example 0 to +10V. If we set the Chance control to the 12 o'clock position it would then halve the incoming CV signal, so in this case +10V will give 100% chance and +5V will give a 50% chance. Negative CV voltages are ignored and will be treated in the same way as zero volts..

Delay Control and DEL Input

This sets the delay amount that is applied to the leading edge of the incoming Gate or trigger received at the IN jack (or a press of the Manual Trigger button), assuming that the "Chance" has been determined to be positive. With the Delay Time switch set to FAST the Delay range will be from 0.5mS to 2 Seconds. With the Delay Time switch set to SLOW the Delay range will be between 2 Seconds and 30 Seconds.

The DEL input allows an external CV voltage to control Delay Time remotely. In this mode the Delay control acts as an attenuator for the incoming CV. With the Delay control fully clockwise a CV of +5V will give the maximum Delay time of either 2 Seconds or 30 seconds depending on the position of the Fast / Slow switch. Lower CV voltages reduce the Delay Time accordingly, so if we apply a CV of zero volts then we will get the minimum Delay time. The attenuator works on any CV patched to the DEL input in the same manner as described for the Chance control.

Length Control and LEN Input

This sets the length, or rather pulse width of the output pulse. With the LENGTH Switch set to FAST the pulse length can be anywhere between 0.5 mS to 2 Seconds. With the LENGTH Switch set to SLOW the pulse length can be between 2 seconds and 30 Seconds.

The LEN input allows an external CV to control Delay Time remotely. In this mode the Length control acts as an attenuator for the incoming CV in the same manner as the Chance and Delay controls.

Setting the Length control to zero invokes "Gate pass through" mode - in this case the incoming gate length is preserved, so the incoming pulse or trigger will still be affected by the Chance and Delay controls, but the outgoing gate length will be the same as the incoming gate length. Turning the Length control slightly clockwise will then invoke the minimum pulse length around control position 1, and further clockwise rotation will increase the Pulse Length as expected. This behaviour also applies to external CV's patched to the LEN input, where a CV of 0V will enable Gate pass through mode.

Fast / Slow mode switches

These switches allow the selection of Fast or Slow mode for Delay time and pulse length, so these ranges can be selected independently for Delay and Length. Fast range is 0.5 mS to 2 Seconds, and Slow range is 2 Seconds to 30 Seconds.

TRIG Switch

The TRIG push button allows manual triggering, and Chance will also be applied to any manual triggering, so depending on the setting of the Chance control, pressing the button has a chance of not doing anything! Holding the button down keeps the incoming gate high for as long as the button is pressed, however this is only really relevant in "Gate pass through" mode - normally only the leading edge of the input pulse is used.

IN - input jack

Connect your input here - a gate, output from an LFO, or even waveforms from a VCO. Any negative component of the input voltage will be ignored, so unipolar or bipolar signals can be used.

OUT - output jack

This outputs the binary pulse (or stream of pulses) that are generated by the Chance Delay circuitry. The gate low level is 0V and gate high level is +6V. The green status LED shows if a pulse is currently being generated.

Module Width: 8hp
Module Depth: 26mm (Including power lead)
Current Usage: 25mA Positive, 6mA Negative

Notes: 'Beast's Chalkboard' is dual channel stepped voltage source and adder for your eurorack modular synthesizer system. It primarily is intended as a dual octave switcher for VCO's but has many other uses including sequence transposition, FM ratio creation, buffered CV distribution and VCO calibration.

Technical Specifications:

Supply: +/-12V (Reverse voltage & polyfuse protection)
Current Draw: ~30ma
Size: 6 HP
Depth: 22mm (including power header)
Offset Error: +/- 10mV

Notes: The 'S.B.G' is a compact utility module intended for the interfacing of guitar effect pedals with your eurorack modular system.

It provides both attenuation and amplification of audio signals for level matching together with a crossfade control to conveniently adjust the wet/dry mix of a processed signal. The module also offers regulation of outgoing CV signals for safer use of pedal expression inputs.

Technical Specifications:

Supply: +/-12V (Reverse voltage protection)
Current Draw: ~30ma
Size: 4 HP
Depth: 22mm (including power header)

Notes: 'O/A/x2' is a dual channel attenuverter with each channel also including a bipolar voltage offset and LED monitoring. The module is primarily intended for fine grain flexible 'editing' of control signals (i.e changing the phase, level and DC offset of an LFO signal) but also has uses with audio signals such as attenuation, inversion and mixing.

Technical Specifications:

Supply: +/-12V (Reverse voltage protection)
Current Draw: ~50ma
Size: 4 HP
Depth: 32mm (including power header)

Notes: 'Akemie's Castle' is a dual voltage controlled oscillator with authentic 4 Operator digital FM using 'new-old-stock' Yamaha IC's for audio signal generation.

Each of the 4 operators feature independent waveform selection, frequency multiplier and level control via direct panel operation and voltage control. Operators can be combined in various ways across both oscillators, which together with independent feedback control on each VCO, offer an extremely wide palette of sounds.

Oscillator A also features a chord mode providing a range of up to 5 voice chords and voltage controlled inversion.

Notes: Gritty drum voice module based on new old stock Yamaha FM synthesis chips, also capable of a decent range of synth tones. User-friendly knobby interface with a decent range of CV inputs for modulation.

Supplier's notes:
'Akemie's Taiko' is an authentic complete FM synthesis based drum voice created using original Yamaha IC's. It builds on the same technology used in the mighty Akemie's Castle but in a more complete triggered voice form featuring both signal generation and envelope shaping.

The module provides CV and direct control over a number of FM parameters including algorithm selection, operator release envelopes, ratios, waveforms & feedback. This gives a massive range of unique sounds.

The voice is able to track 1 volt per octave allowing it to be used for melodic lines as well as percussion. Also optional 'frequency ramps' can be enabled for additional audio effects.

The drum voice includes a trigger input as well as accent and choke trigger inputs to add further expressive and rhythmic control.

Notes: The Jumble Henge is a 16 input stereo spectral mixer with a unique patch-based mixing interface in a compact space. Each input has a carefully tuned resonant analog filter and a unique fixed pan value, providing each sound its own space within the mix. There is a Mix control to adjust the depth of the filtering and a clean external stereo input for chaining with another mixer or extra sound source. Jumble Henge is a space efficient solution for creating rich stereo mixes from a number of both mono and stereo sources.

INPUTS
Vertical and horizontal patch position determines a source's spectral and stereo placement in the mix respectively.

Aside from centred inputs, every input sits in its own unique pan position, helping to keep a separation between sounds but building a complete stereo image when combined.

The centre right inputs of the top two rows are normalised to the centre left inputs. - i.e if just a left input is patched it will be effectively panned center.

Towards the highs the panning becomes wider - as the human ear better pinpoints direction at higher frequencies, whereas the lows remain more centred for a tighter, more focused sound.

MIX CONTROL
Mix control for the overall depth of the filters applied to the inputs. Note: a slight volume increase occurs near the centre of the dial.

EXTERNAL INPUT
An additional clean stereo input pair for chaining with another mixer or additional source. Right input normalised to left input to accomodate mono sources.

OUTPUTS
Stereo mix output, the sum of all 16 inputs.

Jumble Henge was designed in collaboration with Worng Electronics and is based on the 'SoundStage'.

Technical Specifications

Supply: +12V 70mA / -12V 70mA

Size: 8HP

Depth: 38mm

Notes: The MCFx2 is ALM's state variable 'MCF' filter made double. It features 2 identical classic analog 3 pole state variable filter cores each with Low, High and Band Pass (or Notch) outputs. Direct and voltage control is provided for both filter cut offs and resonance. Switches allow the filters to function as one, with the 'Feed' switch internally routing audio from one filter to the other in series and the 'Link' switch linking the cut off controls for both filter cores. MCFx2 expands on the great sounding MCF filter to offer both serial and parallel functionality for stereo operation, dual peak, tighter slopes and other complex filtering set ups.

FREQUENCY CONTROLS
Sets the base frequency for the filter cut offs. The v/oct and frequency inputs are added to these.

RESONANCE CONTROL
Sets the level of resonant peaks atop the cut off frequencies. The resonance can get particularly aggressive going into self oscillation with the control past 12 o'clock.

OUTPUTS
Each filter output is 3 pole with an 18dB/oct slope.
Low - low pass filter outputs. Passes frequencies below the cut off.
High - high pass filter outputs. Passes frequencies above the cut off.
BP/Notch - band pass or notch filter outputs. Jumpers on the rear of the module select one or the other for each filter.
Passes frequencies within (BP) or outside (Notch) a narrow region around cut off frequency.

LINK BUTTON
Links the left cut off to parallel control both filters. The right controls will now set the max range of the right core. Both filters will track together when the right cut off is fully clockwise.

FEED BUTTON
Routes the output of the left filter core to the input of the right (unless patched), with the desired output filter type selected via jumper at the rear of the module.

FREQ INPUTS AND ATTENUATORS
Control voltage inputs here are combined with knob offsets to set the final cut off. Attenuversion control allows for both attenuation and inversion of the CV. Expects approx. -5V - 5V input.

RES INPUTS AND ATTENUATORS
Attenuated control voltage inputs here are combined with knob offsets to set the final resonance.
Expects approx. -5V - 5V input.

AUDIO INPUT 'In'
Signal inputs to the filter cores for processing.
Input sources may need to be attenuated, filter will drive from hotter input levels.
The Left input is normalised to the right (unless 'Feed' is enabled).

Notes: The successor to Dinky's Taiko, Tyso Daiko is a 12-bit dual digital drum voice, with built-in analogue tilt EQ and wavefolder, plus extensive CV control. Intuitive, powerful and versatile.

Supplier's Notes:
The 'Tyso Daiko' is a dual 12-bit digital wavetable drum voice with full voltage control and an analogue EQ output path.

The twin voices are independently triggered and output, but share pitch, envelope and other parameters of a swept wavetable oscillator. One voice is output through a voltage controlled analogue tilt EQ emphasising upper or lower frequencies.

The other voice is output through a digital wavefolder which adds increasing timbral complexity (to noise).

Both voices respond independently to an accent input and the first voice is able to be 'choked' . A surface control allows for fine control of additional transients from a click to a slow attack. Full voltage control including a V/Oct pitch input makes the Daiko an expressive and wide ranging drum module with extremely wide pallet of sounds with lots of modulation possibilities.

The Daiko succeeds the original Dinky with the same spirit but much improved control, new features and new wavetables.

Technical Specifications

Supply: +12V 70mA Max / -12v 35mA
Size: 14 HP
Depth: 32mm

Notes: The ‘Pip Slope’ (rev II) is a compact envelope and function generator. It supports both Attack/Decay and Attack/Sustain/Decay type envelopes with both direct and voltage control of Attack and Decay times. Envelope shapes can be morphed between exponential, linear and logarithmic type slopes. Envelopes can be made to loop, repeating infinitely or decreasing with time or amplitude for echo and bouncing ball type effects. An ‘End of Cycle’ trigger output further extends the envelopes functionality for both clocking and burst or fill type effects.

The improved Pip Slope adds a number of new features and updates over the original Pip whilst keeping the same size. Improvements include increased output resolution, finer control of fast envelopes, a new morphing shape control, switchable 5v or 8v maximum envelope level, additional loop modes and an additional trigger output.

Features:
Compact envelope and function generator in 4HP.
Trigger and gate inputs.
Voltage and direct control of attack and release times.
Snappy or super long envelope times – ranging approx 1ms to 7 minutes per stage.
Optional self looping ability with 3 different loop modes: Decreasing amplitude, decreasing time, and regular loop.
Shape control that morphs the envelope shape from logarithmic to linear to exponential curves.
End of Slope trigger output that fires a trigger at the end the envelope or loop cycle.
Selectable 5v or 8v max envelope level output.
Reverse polarity protection.
Skiff friendly.
Designed and Made in the UK.

Technical Specifications
Supply: +12V 30mA / -12V 10mA
Size: 4HP
Depth: 38mm

Notes: 'Pamela's PRO Workout' is a compact programmable clocked modulation source for your Eurorack modular system. It provides 8 highly editable outputs producing various control voltage signals correlated and synced to a BPM based master clock.

Each output can provide everything from simple clocked triggers, complex rhythmic waveforms, quantised melodic patterns to random chaos with direct and assignable CV control over numerous parameters. These features together with a quick and easy to use interface provide almost limitless synced modulation possibilities in a tiny space.

Building on the original 'Pamela's Workout' & 'Pamela's NEW Workout' the evolved 'PRO' Pam maintains the precursor's form factor and intuitive workflow but improves and adds many new features with upgraded hardware, more CV inputs, a new full colour hi res display and rewritten software adding many new enhancements like micro grid timings and cross output modulations.

Through optional expander modules more CV input and outputs can be added with support for external non euro equipment through Midi and Din Sync outputs. Please enjoy your next generation PRO workout!

Size: 8HP
Power: +12v 60ma / -12v 10ma
Depth: 32mm (approx with power header)
Outputs: 0-5v buffered low impedance. 12 bit res. 3.8khz max update freq.
Inputs: CV 0v-5v / Clock, Run - rising edge 700mV min.

Notes: The MFX is a compact 6HP Eurorack stereo digital audio multi effects processor.

It offers 14 different full featured effects programs plus a number of metering utilities.
Inspired by ALM's favourite classic hardware effects processors, the MFX incorporates DSP technologies from the dawn of digital effects in the 70s to the present day. This combines with ALM character and uniqueness to form a highly useful, fun and practical Eurorack effects module.

Reshape sounds with the distortion and dynamics engines. Bend time, space and pitch with multiple feature rich reverb and delay engines. Modulate signals with the flexible panner, frequency shifter, and range of ensemble effects. Fracture sounds with the one of a kind granular and glitch engines. Check signals and tune oscillators with various utilities.

The MFX user interface is designed to be familiar, quick and easy to use. Each program contains a wide range of controllable parameters both directly editable or freely assigned to CV or clocked control. Additionally, each program includes factory presets as well as the ability to store and recall user presets. All states are preserved across power cycles.

Effect Program List

Digi-PCM Echo
Feature rich digital delay taking inspiration from early prime time rack delay units with added modern features.

Tape-Tech Echo
Tape style delay with a digital pitch shifter bolted on.

Crumbular Echo
More experimental granular style echo.

Ursa Minor Echoverb
Emulation of the classic Ursa Major 'Space station' providing more delays and reverb type effects.

Pocket PL8 Reverb
Emulation of very early digital style reverbs with a dense metallic sound.

Almicon Reverb
Emulation of 80s studio style reverb great for bright rooms and vast synthetic spaces.

Quaidra Reverb
Emulation of a popular 90s rack reverb. Excels at creating airy, atmospheric reverbs.

TY-50 Compressor
Flexible modern compressor great for adding punch, smoothing transients or as a clean mix bus compressor.

Transient Shaper
Fast acting dynamics processor for reshaping the attack and release envelope of any sound.

TH-30 Distortion
A versatile distortion program with distortion types ranging from analog style saturation to intense digital wavefolding.

2051 Bit Corrupter
Real-time audio buffer designed to imitate malfunctioning digital audio equipment.

Modulating Panner
Clock-syncable mono or stereo auto-pan with an additional scan mode that cross fades between 2 input signals. Use for VCA, Panner, crossfader, tremolo type effects.

Ring + Freq Modulator
Pair of classic modulation effects in stereo, tailored towards otherworldly and dissonant sounds.

Ensembles Ensemble
Simulation of classic chorus and ensemble effects. An added digital pitch shifter takes the effect beyond traditional chorus circuits.

Utilities
Simple oscilloscope and VCO tuner.

Technical Specifications

Supply: +12V 50mA Max / -12v 15mA
Size: 6 HP
Depth: 32mm
16 Bit / 44.1Khz Stereo processing

Notes: ALM's first analogue oscillator is a typically smart design, featuring thru-zero FM, continuously morphing wave shapes, dual subs and voltage-controlled FM index.

Supplier's Notes:
The 'TAZM-O' is an analogue triangle core oscillator featuring through-zero frequency modulation and a collection of some of ALM's favourite features of classic oscillator designs.

It includes a continuous morphing wave/pulse width shape control inspired by the Serge NTO, dual SH-101 style varied pulse sub octave outputs, a voltage controlled FM Index typically found in larger complex oscillators, a built in output level VCA and voltage controlled octave transposition similar to the multipliers found on Akemie's Castle digital FM VCO.

Designed to act as the primary oscillator in your system the 'TAZM-O' offers a wide range of timbral and patch flexibility within a relatively compact 12HP size, making it the perfect fit for any modular system.

Continuous crossfading wave shape with direct and voltage control.
Through-zero FM input with direct and voltage controlled mod index.
Dedicated outputs for sine (or triangle), saw and square sub-1 & sub-2.
Primary output with level VCA.
V/Oct input with approx 8 octave range.
Octave transpose CV input ranging 3 octaves.
Hard Sync input.
LFO mode with bipoler LED indication.
Rear switches for selecting Sub-2 pulse width, and sine/triangle waves.
Skiff friendly with reverse power polarity protection.
Made in England.

Dimensions
12 HP
38 mm deep

Current Draw
70 mA +12V
60 mA -12V

Notes: AXON-2 is an 8HP expander module for the SQUID SALMPLE, MFX and Pamela's PRO Workout that like the AXON-1 provides 4 additional freely assignable CV inputs but additionally adds manual offset controls and 2 additional 'performance' buttons.

The addition of AXON-2 increases the Squid, MFX or Pam PRO's total number of CV inputs by 4, greatly increasing the possibilities for vast modular manipulation. Each of the CV inputs includes an offset for hands on control over parameters assigned to CV. Per assignment digital attenuation and offset via the host module is also available for fine tuning the modulation or control over parameters.

The AXON-2's large buttons are great for controlling select functions in a live performance environment or adding convenient quick navigation shortcuts when making edits. The buttons functionality and assignability are dependent on the host module. See respective manuals for details.

NOTE: AXON-2 support requires the latest firmware be installed for Pam Pro (120 or newer), Squid (187 or newer) and MFX (105 or newer).

Features
4 Additional freely assignable CV inputs for the SQUID SALMPLE, MFX or Pamela's PRO Workout
Manual offset knob controls
Two Assignable performance buttons for mutes, tap tempo, navigation, etc (dependant on module)
Powered directly from the module, no additional power header required
Made in England
Skiff friendly
Technical Specifications
Power: Additional approx 10mA on +12V

Size: 8HP

Depth: 38mm

Notes: PRO Expanders:

Extra Pam Outputs.

ALM034-EX

PPEXP1 & PPEXP2 are two expander modules for Pamela's PRO Workout that both offer additional dedicated fixed clock, Din Sync & MIDI clock outputs.

Extend Pam as a master to clock external gear with super solid dedicated MIDI & Din Sync clock outputs. The Din Sync clock (x24) and Run outputs can also be patched into a 2nd Pam to easily sync it.

Use the extra fixed clocked gate outputs to free up Pam's main outputs for unique sequencing or complex modulation duties.

Connects directly to and is powered by the 'MIDI-EX' expander header on rear of Pamela's PRO Workout.

Only a single output expander is supported at any time but either can be used alongside an AXON-1 CV input expander.

A MIDI adapter cable and a Din Sync adapter cable are both available for connecting to 5 pin 'Din' type connectors. The PPEXP 1 includes a MIDI Din adapter cable.

Technical Specifications

Power: Additional approx +12V 40mA (PPEXP1) / 20mA (PPEXP2)
Size: 4HP & 2HP
Depth: 32mm

Notes: PRO Expanders:

Extra Pam Outputs.

ALM034-EX

PPEXP1 & PPEXP2 are two expander modules for Pamela's PRO Workout that both offer additional dedicated fixed clock, Din Sync & MIDI clock outputs.

Extend Pam as a master to clock external gear with super solid dedicated MIDI & Din Sync clock outputs. The Din Sync clock (x24) and Run outputs can also be patched into a 2nd Pam to easily sync it.

Use the extra fixed clocked gate outputs to free up Pam's main outputs for unique sequencing or complex modulation duties.

Connects directly to and is powered by the 'MIDI-EX' expander header on rear of Pamela's PRO Workout.

Only a single output expander is supported at any time but either can be used alongside an AXON-1 CV input expander.

A MIDI adapter cable and a Din Sync adapter cable are both available for connecting to 5 pin 'Din' type connectors. The PPEXP 1 includes a MIDI Din adapter cable.

Technical Specifications

Power: Additional approx +12V 40mA (PPEXP1) / 20mA (PPEXP2)
Size: 4HP & 2HP
Depth: 32mm

Notes: 'MUM M8' is an 8hp Eurorack low pass filter building on the filter design used in the classic Akai S950 12 bit sampler with the addition of resonance, voltage control, clipped saturation and a dedicated VCA.

The low pass filter gives the recognisable super smooth vacuum like tone sucking sound which works magic on complex sources. The addition of clipped overdrive and intentionally aggressive self-oscillating resonance compliment the smooth filter core by juxtaposing it into more wasp like territory with acidic squeals and a more gritty sound.
Mum M8 features dual voltage control with attenuation (and inversion) of filter cut off and voltage control of resonance together with dual audio inputs - one of which includes a VCA to with the capability to aid overdriving signals into the filter core.

The filter core is a 6th Order Butterworth switched capacitor type design featuring an analog core but controlled by a high speed digital clock. This produces the characteristic smooth sounding filter but, as with the original S950, has a relatively high minimum cut off as to avoid 'clock bleed' into the filter output from the digital control. This minimum cut of point (and introduction of bleed if required) can be controlled via trimmers on the rear of the module (see calibration chapter). It is not unusual for there still to be some low-level artefacts from the clock present, particularly during filter sweeps - these add to the filters character.

The motivation for the module came from discussing filters in classic samplers with the artist Jack Adams - aka Mumdance. Jack suggested investigating the S950's filter well known as for it use in classic use in early jungle and hardcore. From that point onward Jack provided inspiration, help and feedback in the development of the filter. Big up Mumdance.

Notes: The 'HPO' is an affordable super slim and skiff friendly no frills stereo headphone driver output for your modular synthesiser. Includes a volume control and ability to double up a mono signal into stereo. A great use for that left over 2hp in a skiff or larger system.

Give loved ones, friends and acquaintances a break from your musical 'genius', the HPO offers a solitary cell for focused creativity impregnable from undeserving non-believers.

Notes: Eight channels of audio and CV sampling with real-time editing and processing. Does basic sampling well but quickly gets creative and weird.

Supplier's notes:
The 'Squid Salmpler' is a Eurorack 8 channel audio & CV sampler. It is designed for immediate real time sampling, editing and mangling within a modular context.

Taking influence from early hardware samplers, The Squid Salmple focuses on usability and instinctive operation, incorporating a proven Pamela's Workout style user interface for minimal screen dependence and a fun, hands on experience.

With support for sampling and playback for both audio and CV, as well as CV control of all parameters, on-the-fly bank loading and saving to USB, The Squid Salmple brings a unique take on old school sampling into the modular realm.

The Squid Salmple comes with a USB Stick containing approximately 90 banks of original carefully curated royalty free samples. This includes a wide range of sounds from classic drum machines and weird synths to field recordings and CV modulations. Banks are provided by both ALM and some of our favourite artists and friends including Mumdance, Solid Blake, Russell Haswell, Lauren Flax, Dave Burraston (NYZ), Sue Zuki, Dungeon Acid, Sasha Lewis and Andrew Duff.