PFFT!
First of all, untold myriad foundation of gear holding up the house. Then there's what I'm listening to at present:
Oppo UDP205
No pre amp
Acoustat Monitor 3 with double panels in isobaric
2 sets of Acoustat Servo Charge OTL monos, 1 set per side; 4, yea, that's right, 4 amps total...