CEM3335 Voltage Controlled Amplifier Replacement

COMING LATE OCTOBER 2025

This module is an upgraded voltage controlled amplifier based on the Sound Semiconductor Inc. SSI2161 chips. This modern replacement for the CEM3335 has more than 15dB better dynamic range than the original CEM3335. When used to replace the two mixer CEM3335 chips in the K250, the background hiss of the synthesizer drops by over 12dB. Hiss drops much further if channel 12 of the K250 has the final version digitizer modifications done. Each module comes with a 14 pin socket and through hole resistors needed for increasing dynamic range once installed. This kit is available as singles or a kit of 8 to replace all CEMs on the K250.

‍

‍Comprehensive Installation Support

Each upgrade kit includes comprehensive step-by-step guides and detailed photo tutorials designed to walk users through the entire installation process with confidence. This professional approach ensures that K250 owners can successfully implement these advanced upgrades regardless of their technical background.

DIY Time Estimate

Under 25 Minutes per Module

$29.50 USD (Single Unit)
$199 USD ( Full set of 8 units)

‍

‍