The Behringer Abacus Eurorack module is exactly what it sounds like: a mathematical analog processor designed to create unique, algebraic functions. Inspired by familiar, renowned models of the 1960s, the Abacus’ interface is jam-packed with linear, logarithmic, and exponential triggered or continuous function possibilities. Four CV inputs with modulation depth and direction control expand the limits of envelope creativity, allowing you to amplify, integrate, or invert multiple functions for complex lag, slew, or portamento effects. Similarly, generated LFO signals onboard the Abacus can reach 25 minutes in length with speeds up to 1kHz for a wide range of modulation choices — this includes the possibility of backward modulation and tempo manipulation within your system! Topped off with its standard 20HP build and included hardware, it’s no wonder so many Sweetwater synth fanatics have chosen to integrate an Abacus module into their Eurorack setup.

| Specification | Detail |
|---|---|
| Type | Function Generator Module |
| Analog/Digital | Analog |
| Controls | Rise, Fall, Response, Attenuverter, Cycled |
| Analog Inputs | 4 x CV, 4 x Trig, Rise (1, 4), Fall (1, 4) |
| Analog Outputs | 1 x 1/8", 4 x CV, |
| Other I/O | OR, SUM, INV f (1,4), 1 EOR, 4EOC |
| Depth | 0.94" (2.4mm) |
| HP Size | 20HP |
| Power Usage | +12V/60mA, -12V/50mA |
| Power Supply | Requires Eurorack case and power supply |
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