An authentic reproduction of the original “System 2500” circuitry from the 70’s that can fit in a standard Eurorack case. The best part? It’s at a very affordable price. Mix in with your existing rig or start your modular synth journey from here. Either way you’re sure to have a lot of fun. Classic 1006 analog FiltAmp module from the '70s Authentic reproduction of the circuitry from the "2500" Series Consists of a 24 dB transistor ladder low-pass filter followed by a discrete VCA Filter cut-off frequency is controlled by external control voltages and by the Frequency control 3 external VCF control voltage inputs with variable attenuation respond at 1 V/Octave A resonance or "peaked" response at cut-off is adjusted with the Resonance control 2 audio signals can be mixed and their relative amplitude adjusted VCA accepts the output from the VCF and modifies the output signal level according to the sum of the Gain control and external control voltages 2 external VCA control signals can be attenuated by front panel controls VCA mode can be selected as either Exponential or Linear Eurorack specs: 16 HP, XX mA +12 V, XX mA -12 V