MATRIXSYNTH: Arp 2600 mk3 Black and Orange

Sunday, August 30, 2020

Arp 2600 mk3 Black and Orange

via this auction

"Excellent condition ARP 2601 with its matching 3620 keyboard. Outside of minor white spots on the keyboard lid (not the keyboard itself, as shown on pics) this Arp is in beautiful condition. Its electronic condition is matching the cosmetics: it was thoroughly serviced in 2014 by Phil Cirocco at CMS Discrete Synthesizers and has not needed any service since then. All functions work to specs. Phil Cirrocco is the acknowledged expert in ARP service and repair.

The original owner made two modifications to the original specs:

1) On the keyboard control panel there is a small red toggle switch in the upper right corner and a red momentary push button next to the vibrato sliders. With the switch in the “off” position the LFO/vibrato controls work in standard fashion. When the switch is in the “on” position the vibrato delay is replaced by push button activation. Pushing the button engages the LFO/vibrato depth settings instantly. This allows for expressive use of vibrato while playing.
2) There are two additional jacks on the lower left corner of the console, and one additional jack on the keyboard control panel next to the connector cable. These allow for an optional ground cable (included) to connect the chassis grounds between the keyboard and console. In some studio situations this improved pitch stability. It is entirely optional."

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