ARP Pro/DGX Image

The Pro/DGX is a thirty preset monophonic analog synth based on the Pro-Soloist of the 1970's. The main difference is that the Pro/DGX had electronic switching (touch buttons) between its preset sounds whereas the older Pro-Soloist had circuit-based switching (rocker switches). It has 30 preset sounds to choose from, including Flute, Bassoon, Brass, Fuzz Guitar etc. Other features included pitch, portamento, vibrato, growl and wow effects. The keyboard has 37 keys with aftertouch sensitivity for volume, brilliance, vibrato, wow, growl, and even bend effects (all at once if you desire!). A few basic filter, envelope and LFO controls allow some tweaking of the preset sounds, however there is no memory to store your settings.

ARP Pro/DGX Image

The Pro/DGX sounds slightly different than the Pro-Soloist however. The presets are virtually the same, but the Pro/DGX implemented a new filter design which some say sounds worse than the one used in the Pro-Soloist. Both synths refer to their single filter control (the filter cutoff) as "Brilliance". A few additional control sliders are available for the Volume, Portamento Time and Aftertouch Amount. Later on during its production, the Pro/DGX was released with the "Orange+Black" look of later ARP synths. It has been used by Tangerine Dream and Keane.

Lookup ARP Pro/DGX Prices

The link above will take you to an eBay search for this synth to see active listings with more images, specs and information. If you don't find it there, try looking in our forum marketplace. Our marketplace gets thousands of visits every week so make sure to check back often if you want to buy or sell a synth.

Related forum topics


Are you looking to buy or sell a ARP Pro/DGX? Post an ad in Gear For Sale or a request in Gear Wanted. For spare parts and repair services check out Gear Services & Other Goods. Our forums also has a Buyer’s Guide section where you can ask for advice on buying synthesizers.

13 Visitor comments
Brian Holt
August 18, 2011 @ 12:16 am
If you want to play early Genesis, and, as mentioned in another post, vintage Kansas, this is a good unit. I play Genesis and it definately get's THE sounds from Selling England through Wind and Wuthering. Amazing how toylike it is, and yet can cut through a loud band like a knife. In my case however, the J-Wires got really inconsistent within a couple months. Also, you have to be happy with the short keyboard and presets, there's really not much modification you can do... this is a special synth for a specific soundset, most likely for recreating 70's prog or jazz. For that, the thing CRANKS.
March 9, 2011 @ 3:36 am
Hey there,

I found a posting of this for $90 and when I search it up on ebay someone is selling it for $2000 and another for $1500.

Do you know what the proper cost/value of the Arp Pro DGX would be?
May 8, 2010 @ 1:16 am
just spotted this pro/dgx solo in jean luc ponty's band
September 19, 2009 @ 6:06 am
Pro/DGX in use:
July 18, 2009 @ 3:36 pm
Linda McCartney is seen playing a Pro-DGX on "So bad", from the movie "Give My Regards To Broad Street".
VSE Rating

It’s Good

User Rating

Rated 3.22 (170 Votes)

  • Check Price
  • The link above will take you to an eBay search for this synth to see active listings. If you don't find it there, try looking in our forum marketplace or post a wanted classified.
  • Demos & Media
  • Audio Clip 1 - This demo plays through several of the preset sounds (Bassoon, English Horn, Oboe, Clarinet, Flute, Trombone) followed by a repeated Space Banjo riff.

  • Specifications
  • Polyphony - Monophonic
  • Oscillators - 1 VCO
  • LFO - Yes
  • Filter - Yes with 1 slider "Brilliance"
  • VCA - Yes
  • Keyboard - 37 keys with aftertouch routable to volume, brilliance, vibrato, wow, and bend.
  • Arpeg/Seq - None
  • Control - None
  • Date Produced - 1977-1980

Errors or Corrections? Send them here.