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  3. 170526-118749

Right Channel dropped out Bryston BP-26P (upgraded from BP-25P)

Long-time member/reader, first time poster  Moved my speakers to new location (used Cardas recommended measurements per post I read today on AudioGon site.  Long story short, turned on system, no right channel.  However, balance ctrl in center, I have left channel output in both speakers. Balance Ctrl fully to right channel...nothing.  Same whether it's switched to Mono or Stereo.  Found negative spade connector off on right speaker (did not seem to be touching positive terminal.  Reconnected still have the problem  Using Bryston 4Bcubed amp.  Both channel lights are green so I don't think it's the amp.Suspect preamp is taking a trip back to Bryston. However, also saw a post that said to clean input selector contacts, which I can do? Any suggestions welcome.  BTW  It's out of warranty
deanrk
imhififan's avatar
imhififan
2,108 posts
 
However, balance ctrl in center, I have left channel output in both speakers.

Have you check if the MODE selector on the back panel of Bryston 4B cubed is set to INDIVIDUAL?
deanrk OP
17 posts
 
IMHIFIFAN. Thanks for the response. Yes MODE is in individual not Bridged. 
deanrk OP
17 posts
 
Hooking up old Adcom GFA-1 to make sure problem isn’t in 4B cubed 
soix
8,643 posts
 
However, balance ctrl in center, I have left channel output in both speakers.
Are you sure about this? Doesn’t make much sense to me. I’d check that you didn’t just hook something up wrong when you moved your system. Or, turn everything off and unplug, disconnect everything and reconnect, turn back on (preamp first as ALWAYS), and see if that fixes it. Bryston stuff doesn’t break easy so I’m leaning toward user error here. Anyway, I feel your pain and best of luck in sorting it out.

bslon's avatar
bslon
2,043 posts
 
Possibly your negative speaker connector contacted the positive terminal and your amp is damaged. The indicator lights can still show green.
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