“For sale is an excellent vintage ARP Pro/DGX Mk. I, aka the Pro Soloist III. This is the model to get! It has the same sounds and fat ladder filter as the Pro Soloist, but with more reliable and more performance friendly pushbutton voice selection switches. This keyboard is the sound of 1970’s Genesis.

This synthesizer has just been overhauled and serviced by Synthchaser, the west coast’s leading ARP specialist – recapped, new key bushings, new LED sliders, new aftertouch sensor, new mahogany wood side panels, fully functional, calibrated and sounding great. Comes with a brand new flight case to keep it safe during shipping and forever after.

Overall great condition for a nearly 40 year old synthesizer, with some small paint blemishes as visible in the photos.

Synthchaser Precision LED slider upgrade. All 4 of the old original sliders have been replaced with new, smooth, high precision LED illuminated sliders. The difference in the way these sliders feel and perform compared to the originals is a huge improvement.
Synthchaser Capacitor Kit installed – All reasonably accessible polarized capacitors in the synthesizer (not just the power supply) have been replaced to ensure stable operation for years to come.
New aftertouch sensor – The original aftertouch sensors are a common failure point and the aftertouch effects are what makes this synthesizer so expressive–we replaced the aftertouch sensor with a new long-lasting one to ensure the aftertouch will work for years to come.
Action restoration – New key bushings installed, keys removed and cleaned, buss bars cleaned and key contacts adjusted
Brand new flight case to keep it safe during shipping and forever after
New mahogany wood end panels
New bottom case panel
Aftertouch and all aftertouch effects working great: Volume, Wow, Growl, Brilliance, Volume, Vibrato
Oscilloscope Calibration – Fully calibrated to factory spec under measurement by oscilloscope”
Click here to search for synths on eBay