The Synthesis Technology e430
Individual filter outputs
Voltage-controlled morph output
The original SEM circuitry was not "improved" or updated. Great care was spent through measurements and beta testing to duplicate the SEM's unique sound. The design incorporates 40 year old circuits such as:
LM301 audio input op amp, LM741 resonance op amp, RC4558 audio summing op amps, discrete jfet current buffers between filter sections, CA3080-class OTAs, no self-resonance unless patched externally
Other features include 2 FM inputs (FM1 is a reversing attenuator) and user-programmable LED color for the morph switch (see the video demo).
VIDEO
Specs-
Width: 18hp
Depth (w/power cable): 35.6mm
Power: 49ma from +12v, 34ma from -12v
CV input range: 10vpp (-5v to +5v), dc to 8khz
Audio Input: 50k nominal input impedance, 10v pk-pk
Audio Output: 12vpp (-6v to +6v), 10hz to 18khz frequency range
