SPECIFICATION - Colossus CLASSIC

VCO Panel

12 x Analogue VCOs. The pitch range is very high and these can be used as LFOs also.

Four waveforms, Pulse Width, Osc Sync, Sub Osc. 

Precision control using high quality multi-turn vernier dials.

Sample and Hold Generator.

Random Voltage Generator.

2x White/Pink Noise Generators.

Multiple.

Scope Panel

Oscilloscope. Type may vary from pictures.

2x LFO (in addition to the VCOs).

4x VCA (in addition to the VCF VCAs).

4x A(D)SR Envelopes.

Multiple.

Note!

VCOs can be used as LFOs. So Colossus has in fact a potential total of 14 LFOs!

Each of the eight VCFs have VCAs hard wired inline, so these plus the individual VCAs means there are in fact a total of 12 VCAs!

Filter Panel

4x Multimode filters - Low, Band and High pass 12dB filters.

Each with serial VCAs.

The circuit was originally based on the Oberheim SEM - though we have done some heavy modifications. But ‘Oberheim SEM’ gives you an idea of the type of sound.

4x Low Pass filter - 24dB transistor ladder filters.

These filters have a ‘Moog’ style sound.

Each VCF has a serial VCA.

(8 VCF/VCA combinations in total.)

2x Analogue mechanical Spring Reverbs. Each one features a triple spring tank.

2x Ring Modulators.

2 Voltage Slew Generators.

4x ADSRs with repeat and hold-repeat feature.

Sequencer Panel

4x large 10V signal level meters that are backlit.

64 step / 2x 32 step Analogue CV/Gate sequencer.

With clock generator, glide, jump, reset, CV, gate and other control features.

10 input stereo Mixer

2 fixed level sub mixers

2x Joystick Controllers.

Matrices
2x Broadcast quality CV and Audio Pin Matrix panels.

Jack Socket Patch Panels

4x minijack patch panels - providing I/O from all circuits.

Rear Panel

Mixer output jacks; Left and Right.

IEC power socket.

Neon lit power switch.

Fuse holder.