To add to SWO's question, let's back up: what are you trying to do and why do you propose to do it the way you suggest? That is, why not "do it" instead of "do it in the following manner"?
On August 19, 2014 at 13:42, netarc said...
Question for more experienced AVR minds than mine - hope to use Airplay on a Denon X2100 in the following manner – is this viable, or might we experience a loop/feedback issue with the following?
1. Multizone amplifier’s (RTI AD8x) PREAMP output into Denon’s CD source input (the Denon serves as amplifier for zone 3 of the multizone amp)
2. Denon zone 2 preout into RTI AD8x source input 3, to allow Airplay via Denon to be sent to the multizone system as a source.
Just to mention, when thinking through something like this, it helps the mind to simplify it by following the path of the signal. In that case, you'd reverse the order in which you consider your 1 and 2 here.
Anyway... Denon Zone 2 preout into RTI Source 3 in. That gets Airplay into the RTI. Got it.
PRE always means there' volume control on the device, so adjustment of the Denon Zone 2 volume raises and lowers the output of RTI Source 3. So this part could work, with that complication...
Then RTI's preamp out into Denon CD. Same thing here: volume controls interact.
If you select CD on the Denon and Source 3 on the RTI, and the two volume controls are set for a gain of 1 or higher, there will be feedback. This won't be the kind of audio feedback that is irritating. Chances are excellent that you won't hear a thing except for the sound of tweeters bursting into flames, or perhaps the magic smoke from one or two amplifiers.
Any potential issues with this approach, since the Denon is acting both as a source device and amplification device? e.g., when source input 3 is selected at RTI multizone and sent to zone 3, the stream goes from the Denon, to RTI source 3, out RTI zone 3, to Denon CD source input and finally to Denon main zone speakers.
Is this viable, or am I asking for a headache?
If you can lock out that wrong connection, this should work. It's like supporting a bridge with a pile of dynamite sticks, but it should work up until it violently doesn't.
