Surround setup problem

I bought the cable from Poland.  The cable I'm using has endpoints that look very like those of the Nordost cables,  It's got some sort of greenish material on the outside, and it's fairly thick.

Last night I once again had dropouts with a surge in volume following each dropout. This morning no dropouts no surges. I really don’t understand.

Once again, the problem setup is HDMI from Ayre DX-5 DSD to Bryston SP3 with balanced analog from the SP3 to an Ayre KX-5 Twenty by-pass input (and to a pair of NAD digital amps for side and rear surround). The DX-5 also is connected via balanced analog directly to the KX-5; that works flawlessly. Cox cable is connected via HDMI to the SP3 with HDMI output to an Audio Engine 2+, but it can also output via balanced analog to the by-pass input of the KX-5; both work flawlessly.

Video appears unaffected by the audio dropouts, i.e., there are no corresponding video dropouts.

The other input to the KX-5 is from an Ayre QX-5 Twenty acting as a Roon endpoint via Ethernet, but that seems an unlikely contributor to the problem.

db

I don't know.  Try another bluray player?

My experience with an ultraSound Roon endpoint that has to be powered up in a specific order with the DAC suggests the intermittent dropouts may have to do with order of starting up the Ayre DX-5 DSD and Bryston SP3. It may be an HDMI handshake issue. If I select the disc player before powering up the DX-5 there are no dropouts; if I switch from cable to disc player, dropouts are likely. I know that shouldn’t be a problem, but maybe neither Ayre nor Bryston is as HDMI capable as Sony.

db