“Here is my vintage ARP ProSoloist up for sale.
This one is a 240 volt model so you will need a 110v – 240v step up transformer to power this but these can be obtain very cheaply, you can see me playing it in the video below, using a $20 transformer (this was filmed on the 24th April 2011).
This unit is in very nice shape however, as with any synth that is 40 years old it is not without it’s problems so here are the issues with this unit.
1. This unit is fully function, the voice board functions perfectly.
2. All aftertouch functions work, all effector sliders and switches work as they should.
3. Audio output is clean.
4. Keyboard aftertouch functions well.
1. The preset switches are intermittent and it’s not possible to select all presets.
Here’s the problem with ProSoloists… the switches suck, it’s common knowledge so much so that ARP eventually changed from the cheap rocker switches of the earlier models to better quality push buttons in the later DGX models.
I have had this unit for 10 years and in that time this unit worked flawlessly but over the last two years this has been in storage and has crossed the Atlantic and on powering it up… the switches now no longer work as they should.
The switches are formed on 2 PCBs, in a bit of a design error, all the switches run through in a chain, so that if one switch early in the chain becomes faulty it’s impossible to actually switch any of the switches further down the chain (and in fact, using rockers is dumb because you have to manually turn off presets if you have more then one selected! – other synths used push buttons that would ‘pop’ out the previous preset selected).
In this example, the first switch PCB is faulty, and looking at it, it looks like the switches have been fixed in the past… perhaps the switch casings have become lose or the contact coroded either way this board will need to be serviced for all presets to work.
The good news… this should be a pretty easy fix for a technician or someone handy with a soldering iron… I would do it myself but I have decided that my interest in vintage synths has come and gone… so I’m handing this over to someone else, and here’s a chance to fix up a machine cheaply that will either reward you with a superb vintage lead synth or the oportunity to fix it up and sell it on and make a nice profit (as these often sell for several thousands).
So, sold “as is”, (no returns) in nice cosmetic condition but with an issue with the switch PCB that will need to be fixed to make this perfect.” Auction ended. Click here to browse on eBay.