2ch amp and HT receiver connected to same speakers

This is an excerpt from audioreview.com forums.

Niles SPK-1 Amplifier selector

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Well I finally found the solution to my dilema of wanting to run 2 amplifiers on one set of spealkers. I wanted to run a HT receiver form multichannel and a 2ch amp for stereo music using the same speakers, To do this you usually have to have a preamp with a HT bypass or set up a tape loop. However, I found this product by niles audio, its an amplifier switcher and its good up to 600wpc and is 12v triggered, for only $95.

Niles SPK-1 www.nilesaudio.com/images/PDF/SPK-1_Cutsheet.pdf

Now the question is, can I hook up my zone 2 of my AV receiver'2 preamp and use this as the 2ch side with a dedicated 2ch power amp. I'll be calling Niles and Adcom on this one.

Bill

02-03-11: Jamesg
Install banana plugs on your cables for a quick disconnect when you switch between systems. Never run with both connected at the same time.

This appear to be the best option of not destroying anything albeit a little inconvenient especially if one often switches between music and HT frequently. I am doing the same thing in my system.

I am not too convinced on the Niles switch box as I believe it may degrade sound quality with an extra box inserted into the chain. Bill is on the right track in contacting both Niles and Adcom as some amp manufacturers may not recommend doing this out of technical reasons(not associated with sound quality).

http://www.nilesaudio.com/images/PDF/SPK-1_Cutsheet.pdf

I use banana plugs to change amps with the same speakers.

I'm still thinking to solve the ground loop. I've helped lots of buddies hook up using HT bypass, or just taking front preouts to an input on the preamp, then always setting it's volume control to the same position. It's hard for me to believe the ground loop cannot be solved.

regarding ground loop, have you tried an isolation xfrmr on your CATV (assuming that w HT bypass, you have a display that may be tied to the cable or sat co-ax)?