The Resor 3300 is Resor's latest addition to the rotary mixers. It features a fully discrete class-A Master Isolator, 3-Band EQ per channel, a dedicated Microphone input with volume control, four Phono / Line preamps, Urei-style knobs, and more.

With this model, Resor bring an all-new discrete master Isolator developed over six months. The new class-A circuitry carries over the 24 dB / Oct filters, crossover frequencies, bypass Relay, and a "full cut" to a maximum boost of +12 dB. With the staggering number of components, including 28 BJT and 32 FET transistors, Resor have achieved outstanding performance in sound and measures.

The 3-band channel EQ is an entirely new design. It brings a fresh set of frequency curves and attenuation levels across all three bands, a lower noise floor, and retaining the discrete Op-Amp on duty.

There is a different curve across these two segments, with the Isolator having a more pronounced sweep and colour. In use, this means that per channel, you get to craft your sound via the EQ and then craft further still with a different tonal balance with the Isolator.

Across the EQ and Isolator, plenty of headroom is available across all frequency ranges, providing plenty of control when crafting the audio.

Each of its four channels features hi-fi Phono and Line inputs. With Phono preamps delivering 44 dB of Gain, both vinyl and digital are well-balanced. Further refinements on the Phono preamps gave us even more pleasing dynamics, headroom, and a broader frequency spectrum.

Resor offer an additional element of customisation that one can specify when they place their order, ranging from adding an FX-bus, changing the combination of colours for the faceplate to different wood finishes and knob options.

Inputs

Channels 1-4: selectable PHONO & LINE (RCA)
Microphone: dedicated XLR with own control

Outputs

Master 1: Balanced XLR
Master 2: Unbalanced RCA
Booth: Balanced TRS
Rec: Unbalanced RCA

Channel EQ

3 Band Baxandall: Bass + / - 18 dB (at 150 Hz), Mids + / -
10 (at 800 Hz), Treble: + / - 10dB (at 10 kHz)

Master isolator

Fully discrete class-A circuitry
3 Band, 24 dB / Oct, Linkwitz-Riley filters, crossover
frequencies at 310 Hz and 3100 Hz,
Full-cut to maximum +12 dB, ON / OFF true bypass with
Audio Grade Relay

Master insert

Out: Stereo TRS (Tip - Left, Ring - Right, Sleeve - Ground) - post Master Isolator
In: Stereo TRS (Tip - Left, Ring - Right, Sleeve - Ground) - pre Outputs

3300 FX (Send and Return)

Effects Out: Stereo TRS (Tip - Left, Ring - Right, Sleeve - Ground)
Effects In: Stereo TRS (Tip - Left, Ring - Right, Sleeve - Ground)

Customisations

Wood: Natural Oak, Matte Black, Walnut
Faceplate (Matte Aluminum): Black, Bronze, SIlver;
Premium Metallic Red, Metallic Green, Metallic Blue
Knobs style: Resor Standard, Urei knobs; Premium
knobs: Silver Matte Aluminum, Black Matte Aluminum
VU-Meters: Standard, 4x Round (one per channel)

Other

2 x Analog VU Meters (1VRMS = 0db)
Cue / Mix Switch for the VU Meters, to display either the
Cue or Mix signals
Rotary Switch to CUE between all four Channels
Cue / Mix Blend potentiometer
Audio Grade external Power Supply Unit
3 Years International Warranty

Line Inputs

Discrete, Class-A Op-Amps
Measured Line In to Master Out:
Frequency response + / - 0,3 dB, 20 Hz to 20 kHz
THD+N better than 0,004 %
SNR better than -95 dB

Phono Inputs

Discrete, Class-A Op-Amps, Gain 44 dB
Passive RIAA Equalization, polypropylene capacitors, close tolerance
Input impedance is 47 kohm
Input capacitance is 47 pF
Measured Phono In to Master Out:
RIAA accuracy within + / - 0,3 dB (20 Hz - 20 kHz)
THD+N better than 0,02 %
SNR better than -77 dB
Maximum input signal level before distortion 100 mVRMS

Master Output

Balanced XLR
Unbalanced RCA L and R
Impedance < 300 ohm

Booth Output

Balanced TRS
Impedance < 300 ohm

Record Output

Nominal level -10dBV
Impedance < 300 ohm

Crosstalk

Channel Fader offness < -100 dB
Channel L / R separation <-70 dB
Isolator offness < -90 dB

Dimensions

330 mm (W), 275 mm (D), 98 mm (Height - measured from the faceplate and including the rubber feets)

Weight

Mixer: 5.3 KGS
Power Supply: 1 KGS
With travel case: 11 KGS