Mono on AU-717?

59volvo

Super Member
There seems to be no mono switch on the AU-717 - am I missing something? The TU-717 has a mono button, but was wondering if there is a way to have it play mono from the amp itself?
 
Yes, it was a stupid omission on that amplifier. The loudness switch should have been a mono switch IMO.

You can do it. You can switch the rear pre/main coupling to separate, put two coupling links from in to out and then place a switch between the two 'hot' links. It would be a mono/stereo switch. No modifications and could be extended out to the shelf the amp sits on. Easy.

I would use two core+shield (balanced mic) cable and a small toggle, soldered and heatshrunk on about 40cm of cable.
 
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