When I have a left & a right speaker in a stereo system, how does the music get divided? Do I hear different sounds from each speaker?

I'm looking for an adapter to allow me to listen to my stereo on my Bluetooth stereo headphones. Can someone point me towards one?

Are there any rules I should follow when setting up my stereo speakers so they sound their best?

When buying stereo separates, roughly what percentage should you spend on player, amp, speakers and accessories? Do the ratios change for high end versus budget setups?

I'm looking for an iPod dock with a built-in alarm clock that sounds something like a real stereo, not a bag of tins and rattles. What are my options?

I'm looking for a new AV amplifier. My budget is around £500 or so. On my wish list is 7.1 channels and Dolby TrueHD, and at least 2 HDMI inputs. If possible I'd also like it to h …