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Is it possible to down-mix stereo outs to mono amp

I recently acquired an old Grundig Majestic console radio/turntable. It's an all tube mono amp with - as best I can tell so far - three speakers. With its FM section it's a surprisingly nice sounding amp, in a sort of lush tubey sort of way. It does have an unused input, but of course it's also mono. Is it possible to take the two channels out of, say, a DAC, and blend them down into a mono input? I'd love to be able to play streaming music or computer files through it.

Regards,
grimace

Showing 4 responses by mofimadness

mofimadness's avatar
mofimadness
5,369 posts
 
Actually a simple "Y" adapter will do.
mofimadness's avatar
mofimadness
5,369 posts
 
I recant my above "Y" adapter suggestion as per
Al. I never really even considered that a current day DAC
could have such a low output impedance, (and such a poorly
designed power supply section) that would create such a
channel imbalance as to cause the DAC to die prematurely.
mofimadness's avatar
mofimadness
5,369 posts
 
Al...ZD's suggestion doesn't address the OP's hook up question. It is software based, BUT, if the source in question can be switched to mono, then would a "Y" adapter work?

The output would then be mono BEFORE it hits the DAC, so the difference in voltage shouldn't be present...correct?
mofimadness's avatar
mofimadness
5,369 posts
 
09-22-15: Zd542
"If the OP uses software to convert stereo to mono, there is no hook up question."

Yes, there is a hook up question. Just because the signal is converted from stereo to mono "at the source", how would the OP get that from his DAC to the Grundig? You never addressed that in your original comment.
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