Abacus is a module based on the legendary 257 and 281 modules, containing a bunch of linear, logarithmic, and exponential functions – either continuous or trigger-based. Abacus can generate envelope and LFO signals with speeds ranging from cycles as long as 25 minutes to 1000 hertz. The module also functions as a mixer/attenuverter for 4 CV signals, enabling the creation of lag, slew, and portamento effects, for example.

Features:

• Inputs: CV 1-4, Trig 1-4, Rise 1 & 4, Fall 1 & 4
• Outputs: CV 1-4, OR, SUM, INV, ƒ1 & 4, 1 EOR, 4 EOC
• Width: 20 hp
• Power consumption: 60 mA +12 V / 50 mA -12 V