R5609 Anti-Aliasing Filter Upgrade module with very low THD+N K250 99 fee for signature confirmation

99 fee for signature confirmation on all US and global orders

Return box with old power pod for restoration

This custom-designed panel kit delivers a straightforward and seamless method to upgrade your K250 system and load your sounds efficiently with direct-connect USB

How-to install videos for our products

R5609 Anti-Aliasing Filter Upgrade module with very low THD+N K250 99 fee for signature confirmationHere is a modern day, greatly improved replacement for the old Reticon R5609 Anti Aliasing Low Pass Filter used in the Kurzweil K250 12 channel synthesizer. These R5609 have not been made in many decades and are hard to get. In addition, these original chips were one of the primary limitations for distortion and noise in the K250. MAXIM makes a modern day part (MAX291) that has been adapted to match the pinout of the R5609 and provides over 20dB lower