From what I've heard, its usually better to buy the electronics first (changer, deck) first rather than high quality speakers.
A lower quality or older deck will often output a clipped sound wave. This will damage high quality speakers because they will not be playing a smooth waveform.
So if it comes down to buying the equpiment now, and speakers later or vice versa, I'd recommend buying the equipment now, speakers later.
Audiophiles of the board, please clarify or contest my statement.
