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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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. 
I don't know what specifically the HDMI cable is, except it seems much more substantial than the cable it replaces.  The sound with Blue-rays, both music and cinema, is superb.  I was surprised that a setup aimed at the reproduction of music, Ayre 5 series, KEF Reference 1s, Velodyne HGS-15s, could portray the special effects in Casino Royale so well.
I think that surround sound, done properly, is a great equalizer financially  A mid fi surround system can enhance many recordings, particularly if they were correctly produced with respect to ambience, etc.  One doesn't need a megabucks setup to get most of this enjoyment, although as with anything it generally improves as one goes up the price scale
I’ve listened many times to a Blu-ray (Thielemann with the Wiener Philharmoniker) of the 2nd movement of Beethoven’s 7th symphony, both in stereo and surround. I always prefer surround. That was as true with my previous setup of Parasound J2 by-pass, Bryston SP3, JC-1 monoblocks, and KEF Reference 107/2s as it is with my current setup of Ayre KX-5/20 by-pass, SP3, VX-5/20. and KEF Reference 1s. An Ayre DX-5 DSD was the disc player with bass managed Velodyne HGS-15s for both setups. Same preference holds true for the "Legends of Jazz" Blu-ray, also listened to many times.
I’d like to make some HDMI cable recommendations for your Ayre DX-5 DSD player. Since you don’t actually know what cable you’re using, it’s probably not super high end (but I could be wrong).

The best "new" cable for the money is Nordost Heimdall 2 HDMI. Always get a 2 meter HDMI cable even though you don’t need the length. A short 1 meter HDMI cable will have problems with lack of high frequency response and also video sharpness due to signal reflects on such a short cable. Retail for a 2M Heimdall HDMI is $800 (unless you can find a dealer who can give a little discount).

If you don’t want to spend that much, you can try to find an old Wire World Starlight 5-2 or Starlight 6. These are excellent cables and the larger 24awg conductors will give better bass response. However, the sound might have a little bright edge because the copper is not as good the Nordost. The Heimdall has better overall audio/video quality, but not quite as strong in the deep bass (it’s a smaller 25awg conductor).

There is a used Silver Starlight 5-2 on ebay from Poland for $200 USD:

https://www.ebay.com/itm/Wireworld-Silver-Starlight-5-Reference-HDMI-cable-1m-silver-hi-end-HDMI-cab...

The Silver Starlight 5-2 is the only HDMI cable I have seen to use OCC copper conductors. However, this one from Poland is only 1 meter. That being said, I think this cable would potentially still be highly superior to what you have anyways if you didn’t want to "try" the Nordost with $800 retail. If you can find a 2 meter Silver Starlight 5-2, grab it before somebody else does. The Silver Starlight 5-2 is the second best cable I have tested and used (in some ways better than Heimdall). The Heimdall can be less harsh sounding on bad source components because it doesn’t have as thick of a silver clad/plate.

WARNING: don’t buy any Wire World cables that use the newer DNLA Helix design. The Helix uses 2 x 26awg conductors FOR EACH hdmi SIGNAL PIN. This actually isn’t as good as the 24awg single conductors. I’ve tested these. I think it’s partially due to smaller conductors and also timing errors due to unequal length of these 2x26 awg conductors that are twisted in a non-linear way.

The absolute best cable I have tried is Nordost Valhalla HDMI, but you would really want the absolute best outcome to spend this much (2 meter is $4k retail). However, there is no other cable that competes with this.

I was disappointed with Audioquest HDMI cables.