This is a fantastic semi modular synth in good condition. This is amazing for basslines in particular.

It’s already wrapped up and ready to go, it does not have a power cord with it.

Red Square is a patchable analog monosynth that can also be used as an effects processor. It has the advantages of a modular synth (re-wireable synth circuits, external control, external signal routing) and the advantage of a pre-patched monosynth (easy to use, instant sound, tidy front panel). 1/4" jacks make it easy to interface with all your other gear! 

MONOSYNTHESIZER

The top row of controls on Red Square act as a complete (pre-patched) monosynth. This section allows Red Square to be used straight away without having to patch any sections together. All that is needed is a MIDI cable and an audio cable. This means Red Square can be used immediately with no fuss or confusion as a powerful, flexible synthesizer-sound machine. 

The top row synthesizer comprises VCO1, Noise, External Signal, Sub Oscillator, LPF, EG1 and the VCA. The Ring Mod output also goes to the filter audio input, but its inputs must be patched first. 

The additional sections like EG2, VCO2, Ring Mod, etc, can be patched into the monosynth to create even more varied and complex sounds, or they can be used independently or in conjunction with other synths. 

EFFECTS PROCESSOR

Don't just think of Red Square as just a patchable synthesizer. It is also a highly versatile analogue effects processor. Red Square has a panel full of professional quality 6.35mm jack sockets which allows it to be integrated into your studio set-up just like any effects processor. But instead of just another lifeless DSP processor, you have a warm, fat, or even down right dirty analogue effects processor. 

The analog filter or ring modulator can be used as two independent effects processors or chained in series for dual effects. They can be wired into your mixing desk's effect sends and returns just like any other effects unit. The additional sections of Red Square can be patched in to modulate the effect on your external audio signals. All this and you can still create and use an independent synthesizer patch too! 

VCO1:
Glide, PW control, sync in, saw out, square out, sub oscillator out 

VCO2:
Glide, PW control, saw out, square out 

VCF:
Low Pass filter, cut-off CV, Q CV, cross modulation from VCO1, external signal in 

VCA:
Mode switch, CV control 

EG1:
AR envelope with switchable sustain/release 

EG2:
Full ADSR envelope with normal or inverted output 

VC LFO:
Speed CV, saw, inverse saw, square and triangle outputs 

Sample and Hold:
Lag control 

Noise Generator:
White noise 

Ring Modulation:

MIDI to CV Converter:
With auxiliary controller CV output 

Headphone output:

Multiples:
2x 4 ways 1x 5 way 

Rotary controls:
31 

Push button:


Switches:
1 push pull 2 slide 

LEDs:


Jack sockets (6.35mm, mono - 1 is stereo);
52 

Dimensions:
5U/1HE (x mm). Width (not inc. ears): 435mm. Depth: 100mm 

Power:
240V or 110V (select when ordering), IEC socket

This item is sold As-Described

This item is sold As-Described and cannot be returned unless it arrives in a condition different from how it was described or photographed. Items must be returned in original, as-shipped condition with all original packaging.Learn More.

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Listed4 months ago
ConditionVery Good (Used)
Very Good items may show a few slight marks or scratches but are fully functional and in overall great shape.Learn more
Brand
Model
  • Red Square
Categories
Year
  • 2006-2008
Analog / Digital
  • Analog

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Michael's Gear Locker

Hamden, CT, United States
Joined Reverb:2025

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