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Surround setup problem

In preparation for a surround setup I connected HDMI from an Ayre DX-5 DSD disc player to a Bryston SP3 processor, with front LR to the by-pass input of an Ayre KX-5/20 preamp.  The plan was to use the KX-5/20 and VX-5/20 amp for front LR with NAD digital amps for side and rear surround.  The setup resulted in audio dropouts with about a 50% duty cycle and noise before each dropout.  Disconnecting the HDMI from the SP3 eliminated the dropouts even though the by-pass between the SP3 and preamp was still connected, but that also eliminates surround.

I may end up using a spare NAD M22 for front LR with a switch to select it for surround or the VX-5/20 for stereo.  Any recommendations for such a switch?

db 
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auxinput
2,920 posts
 
millercarbon is forever on a crusade to ban and kill any sort of HT multi-channel system, so if you want to remove any possibility of center channel dialogue or surround channels, by all means follow his advice.

It seems like there is a problem either with HDMI output on the Ayre or the HDMI board on the Bryston SP3. It could also be an inadequate or faulty HDMI cable. You could try a different cable. If that doesn’t work, see if you could borrow another bluray/DVD player from somebody to test with the SP3. That should help diagnos if your Ayre HDMI is the problem or if it’s the SP3 problem.
fuzztone's avatar
fuzztone
5,633 posts
 
Easy.
Switching to stereo doesn’t solve your problem.
Easy.
Don't mention balanced cables or you'll get a rash on that too.
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dbphd OP
1,631 posts
 
I mostly listen to stereo from Roon via ethernet to an Ayre QX-5/20 digital hub.

I'll try another HDMI cable.

If it's OK to have both the balanced and single-ended inputs to the amp connected, switching between them might be an easy way to select the Ayre preamp for stereo and the Bryston processor for surround.  I sent an email to Ayre.
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dbphd OP
1,631 posts
 
auxinput - The problem was a faulty HDMI cable.  HDMI from the Ayre DX-5 DSD disc player to the Bryston SP3 processor that outputs balanced analog to the Ayre KX-5/20 preamp seems to be flawless.  The setup awaits only connecting the NAD amps for side and rear surround.

Thanks for the tip,
db 
auxinput
2,920 posts
 
That's awsome!  Thanks for letting us know.

What kind of HDMI cable are you using?  If you are using stuff at the Ayre/Bryston level, then the HDMI cable from the Ayre source can definitely impact sound quality. 
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