MATRIXSYNTH: Sequential Circuits Prophet VS SN 0391 Serviced with Upgrades

Saturday, July 06, 2019

Sequential Circuits Prophet VS SN 0391 Serviced with Upgrades


via this auction

Pics of the inside below.

"Important upgrades are as follows.

The display was upgraded to OLED.

All push buttons were replaced within the past year.

The original aftertouch system was upgraded to utilize the common Fatar pressure sensor installed underneath the actual keys in place of the felt so when you depress the key it engages the aftertouch very easily. The entire keybed was disassembled and cleaned during the process.

The failure prone CEM 5530 chips have been replaced with very reliable clones from Straylight engineering."

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