Reader Juan Urquhart shared this quick demo of a DIY filter, using the new SSI2144 VCF chip.
Urquhart says it’s an “early test of an early sample of this amazing chip, running from 9v, datasheet schematic.”
The SSI2144 FatKeys Voltage Controlled Filter is an improved reissue of the vintage SSM2044 chip.
The SSM2044 is a 4-pole filter on a chip, used in classic synths from E-Mu, Korg, PPG, Siel and others. Some consider the SSM2044 to be the best-sounding VCF chip ever created. The new version is produced in a Shrink Small Outline Package (SSOP), designed for modern production techniques.