The one with the capacitors has an AC motor. The other one has a DC motor.

Yes - called daisy chaining. Each powerlink cable carries both left and right information.

Had both and found the 4500 very neat but without a Datalink system it is not as useful. The CDX works with anything! The CD4500 can sound fantastic - it is supposed to have a TDA1541 DAC but some have a TDA1541A which is supposed to be superior. The CD5500 is better still as it does have a slightly different architecture.

I don't have a VX service manual of any description. I do have the V8000 which is mind blowingly huge! Never had the courage to start scanning it as it would take up too much room and some of the sheets are bigger than my A3 scanner! The sensor is a modified MCL sensor without the controls. That might be a place to start looking.

I would strongly suggest ringing your dealer now! There has been a note round and B&O are discontinuing various parts - including some for the CD4500 - they have discontinued most already though. The CD mechanism is about to be taken off the list.

burantek: not sure about this "split." my 1200 is in a typical setup and functions fine... if you have extra filters... remove the filter between the wall and the splitter and try (2) filters placed: (1) between the splitter and the 1200 and (1) between the splitter and the orange. there may be a conflict issue killing the singular filter

No, but the electronics are identical in the BC9500 CD part.

My first receiver was a 2400 and I have had or heard most of the rest of the series. Never had a problem with lack of power - I used S75s for years with the 2400 - though it would distort at the very highest volumes so I didn't venture there. The 4500 is actually not too different from the Beocenter 9500 in most respects and again this is a perfectly

I'll see what I can find out.

Must be the broadband - have you tried a different filter? The 1200 seems to be a sensitive soul. Mine drives me crackers! Why they didn't put a back up battery in it is beyond me.