Personally used gear by Walter Becker of Steely Dan bought at auction.
Comes from his Maui Recorders studio. Sticker on unit. Untested.
The DBX model 200 Program Route Selector is designed to solve the problems of hooking up a complicated Hi-Fi.
It makes it possible to connect and easily use as many as three tape decks, a noise-reduction system, and at least three sound processors through just a single tape-monitor loop on your preamp, receiver, or integrated amp.
Further, any and all of the sound processors may be switched in to modify the signal before recording, letting you make tapes the way you want.
On playback, even further processing can be applied.
In other words, the model 200 lets you quickly and precisely select the route you want any program signal to follow before you listen to it or before you tape it.
And it does all this without adding anything to the sound, since it doesn’t even plug into the wall. It just connects everything together.