A friend mentioned seeing an ARP Quadra in a pawnshop yesterday. He asked the pawnbroker to plug it in, and sure enough–it was totally non-functional.
In case you were not aware of it, the Quadra was ARP’s 1978 attempt to make a “super keyboard” by tossing together a pile of assorted stuff they already had. So, it’s basically a “sandwich” containing an Omni string synth, an Axxe (or Solus? some disagreement) lead synth, a simple one-VCO bass synth, and a really nice phaser, all stuffed into a very large box with a cheap keyboard assembly (which was easily ruined if you dropped the Quadra, as it protruded from the case) and a very primitive preset capability. I seem to recall that it sold for more than $4000 when it came out.
Should you be tempted to buy one, be aware that it is guaranteed that the membrane buttons will be unusable and very difficult to replace or substitute. And the electronics will have a long list of issues. Synth-collector snobs don’t like to talk about the Quadra…….Oh well, at least it had a nice phaser. Long ago I was tempted to buy a used Quadra because it could do fascinating, warped things…but then I heard the horror stories about it…..