Legendary 2500 Series Dual Core VCO Module for Eurorack

The first 2500 series synth modules came out in the '70s and tended to be extremely expensive. They were mainly all discrete transistor designs with some op-amps as at the time op-amps were high cost. The discrete circuitry gave the modules a very distinctive sound and were used by artists like The Who, Jean Michel Jarre, Vangelis, Kraftwerk and so many more, giving us some of the greatest records and film soundtracks we’ve ever heard. Modular synths were a landmark development in electronic music and today, it’s about to get better.

Features

• Classic 1004 dual core analog VCO module from the ‘70s
• Authentic reproduction of the circuitry from the “2500” Series
• VCO features 5 waveforms: sine, triangle, square, sawtooth and pulse
• Waveforms can be combined and inverted into the audio outputs
• Output frequency range from 0.03 Hz to 16 kHz in 2 ranges
• VCO range selectable between Low (LFO) or High (Audio)
• Coarse frequency control allows adjustment over 10 octaves
• Fine frequency control adjusts over +/- 1 octave
• Frequency modulation with 2 inputs and controls responding to 1 V/octave
• The width of the pulse waveform can be set manually and controlled dynamically
• Eurorack specs: 16 HP, 60 mA+12 V, 50 mA -12 V