Hi again,

A question to the guys here regarding the AA 1154 and AA 1177 'automatic' digital input switching type devices or anyone with experience of similar devices:

I am not sure what these devices use as protocol for their switching criteria but are they 'robust' in their operation? I imagine the protocol is simply along the lines of whether a digital signal is present in one of the inputs or not? and then switching to that input.

Which leads me to ask: If I have a CD player in say socket 1 and I stop the CD from playing using the stop button does the digital signal stop completely and therefore the switching device now believe there is no source connected to socket 1 any longer or does the CD need to be in standby or switched off for this off 'state' to be satisified.

Or do they simply switch to the last valid digital input which was 'switched on'? Or do have to sometimes have to switch a source on and off to make it clear to the switching device that this is the input you want use?

I ask the question because Jonathan mentioned missing a discrete switching device even though he has one of the auto switching devices

Cheers

Spencer

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