- Behringer Abacus; Eurorack module; dual-channel function generator and CV processor; two function generators with manual controls for attack, decay and response curve (from logarithmic over linear to exponential), cycle button, trigger and signal inputs, CV inputs for attack, decay and cycle; signal output for each function generator as well as "end of attack" triger out for channel 1 and "end of cycle" trigger out for channel 4; possible applications: AD adn AHD envelopes, LFO, oscillator, slew limiter, filter, clock divider and more; bi-polar 4-channel mixer for both function generators and two external signals; individual outputs for each channel and outputs for sum, inverted sum and logic OR; power consumption: 60mA (+12V) / 50mA (-12V); width: 20 HP; depth: 24 mm