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 was 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 1050 sequential mixer module from the '70s
• Authentic reproduction of the circuitry from the "2500" Series
• Features sequential switching for rapid selection of waveforms and signals in a conventional audio mixer format
• Dual 4-input mixers with electronically gated inputs and eight-step counter and clock
• Each of the 8 audio inputs has its own attenuator and each dual output has a master gain control
• Can be used as an 8-input mixer with 2 adjustable outputs or as 2 separate 4-input mixers
• Illuminated push buttons select and indicate which inputs are gated
• Exclusive-On push buttons turn on a specific channel while turning off all others to preview signals
• Clock pulse generator can be switched on/off to sequence the channels in numerical order at a rate set by the Pulse Rate control
• A rotary switch controls the step length of the sequence and can set the clock to off
• Module can be clocked externally or connected internally and controlled by the 1027 or connected to a 1026 module to generate preset voltages 
• Eurorack specs: 24HP, 110 mA +12 V, 20 mA -12 V