I have owned the DQ10's on couple of occasions (in the 70's)...they need power (and current). I used the HK Citation 16 and GAS Ampzilla. If on a budget, a couple of suggestions....Odyssey Stratos or an Eagle 2 (or 2C -- or maybe even a Counterpoint Solid 2 which is 2x the power). Either are very good....however, the Solid One is a damn good little amp (I had one that drove some Legacy Focus with excellent results). I have a feeling the lean issue is not the amp. You may just need more watts. One other suggestion, Classe amps are known for being "thicker" sounding. Don't even consider a tube amp. Here is another sugestion....get a tube preamp..that will provide more body. A good budget unit is the Audible Illusions L1 or M3.
