The mixer module has four inputs. If the fourth input isn't patched then this channel carries the signal of the internal noise generator which is made entirely with analogue transistor technology. This configuration is practical when using the module in a subtractive synthesis setup as an oscillator mixer before the filter.
In addition there is a dedicated noise output, this way the signal can be used for other tasks.
The Power Midi employs converters with 16 Bit resolution to generate control voltages. An adapter from DIN to mini jack is included with the module.
The power supply delivers up to 400 mA at +12 V and 300 mA at -12 V.
The manufacturer recommends to use a USB power supply with at least 2 A to operate the module.
ATTENTION: Before you connect the Power Midi to the USB port of a computer, it is very important to check its specifications!
- Discrete, temperature stable and 100% analogue oscillator with a vintage sound so rich and direct that it almost jumps in your face!
- Waveform-wise we find the four classics: sine, triangle, saw-tooth and pulse. In addition there's a sub-oscillator output. Of course the pulse width can be modulated, both manually and via the scalable PWM CV input.
- The VCO's coarse frequency range is set with the range rotary switch whose action is soft yet very precise. The fine frequency is set +/-7 semitones with the FINE control.
- Glide does what you expect it to do; it adds a portamento.
- The white highlighted area is the frequency modulation department which of course is a must. It can be selected between normal and Thru-Zero FM. Especially the latter sounds very rich and beautiful!
- The filter's input has been placed directly below the waveform outputs for easy patching the VCO into the -24dB/octave steep low pass filter by using a short patch cord. Soundwise there is absolutely nothing to complain about - this is a fat classic LPF with a lush sound!
- It's not a must to use the filter together with the VCO as there are individual inputs and outputs, although you should be aware that the 1V/octave input is always normalized to the cut-off frequency.
- Idiosyncratic is the fact that the VCF has no resonance control but a switch only which either chooses 0% resonance or the full self-oscillation. In latter position the filter turns into a great sinewave generator which is perfect as Thru-Zero modulator - and suddenly the steady 1V/octave-to-cut-off normalization makes perfect sense in order to keep frequency ration constant! Brilliant thinking!