The Utopias are wonderful speakers. You did not mention your source, but I assume it too is of high quality. Given what I know (I own the Calypso, Dunlavy IVa speakers and Plinius SA-102 amp) I could simply say PLINIUS MAN! But I don't think you are asking me how much I love my system, but what options should you consider. If it was me, and understanding I like the solid state, yet pure Class A, 125 watt characteristics of my Plinius, I have two used amps to consider.
First there have been a number of four to seven year old Rowland amps for under $5000. These are very natural, magical amps and might be an excellent match to your system. The second is clearly over your budget, but you asked if there was something special. I would do some research on Lamm. Lamm has been the step up for many Plinius owners. They are pure liquid magic. I will never be in a position to consider these amazing products, but if you can stretch, I would certainly look into them.
Classe and YBA are fine amps to look at too, but for my taste it would be a simple look.
jd
First there have been a number of four to seven year old Rowland amps for under $5000. These are very natural, magical amps and might be an excellent match to your system. The second is clearly over your budget, but you asked if there was something special. I would do some research on Lamm. Lamm has been the step up for many Plinius owners. They are pure liquid magic. I will never be in a position to consider these amazing products, but if you can stretch, I would certainly look into them.
Classe and YBA are fine amps to look at too, but for my taste it would be a simple look.
jd