best used system for 10k$

Well you can get your hands on a ton of used gear for 10 Gs with room to spare.I would suggest Conrad Johnson like the MV- series and the PV series preamps.As for CD players you really cant go wrong with California Audio Labs.For solid State amps,there is Threshold and even Pass Labs,Speakers I like the Martin Logans and B&W 802s and for interconnects I like Audioquest or Kimber Kable.Tuners,go for Magmun Dynalab and youll still have loot left over.Cheers and good luck.

My current system would fit the bill: Conrad Johnson Premier 11a amplifier Conrad Johnson PV10L preamp Micromega Stage 2 CDplayer Totem Forrest speakers I'd suggest selecting a different CD player. The Micromega and its parts are no longer available. It also has a pretty bad reputation with respect to reliability (even though mine has been trouble free). You could easily improve over the preamp given your budget, but you probably can't do much better than the PV10 at that price leve.

b4 u drop a dime, no advise would be valid w/o letting others know what type of muzak u listen to.