In the ongoing discussion of the merits of A/V preamps for stereo music it is often recommended to get a seperate stereo preamp for music. Now, my question is: How can I use the same power amp and main speakers? For this, I would have to have 2 inputs into my power amps, e.g. vie a Y-formed adapter. Is this feasable? Can the amp be destroyed by connecting 2 inputs (of which only one would be feeding a signal at a time, of course)?