It would be worth your while to look at these babies:
Blue Circle AG-8000 monoblocks $5,998
* Four separate chassis: 2 monaural amplifiers, each with its own separate external power supply.
* 150 watts into 8 ohms
* True balanced topology
* Tube input stage (two 6922's), Blue Circle's new solid state output stage
* Two pairs of binding posts for shot-gun bi-wiring
* Custom Blue Circle Polypropylene cap bypass in both B+ and low voltage power supply
* Over 300,000uF power supply
* 2500 watt power supply transformer
* DC power connection rated up to 34 amps
* HexFred(tm) Ultra Fast Soft recovery diode in B+ and low voltage power supply
Blue Circle AG-8000 monoblocks $5,998
* Four separate chassis: 2 monaural amplifiers, each with its own separate external power supply.
* 150 watts into 8 ohms
* True balanced topology
* Tube input stage (two 6922's), Blue Circle's new solid state output stage
* Two pairs of binding posts for shot-gun bi-wiring
* Custom Blue Circle Polypropylene cap bypass in both B+ and low voltage power supply
* Over 300,000uF power supply
* 2500 watt power supply transformer
* DC power connection rated up to 34 amps
* HexFred(tm) Ultra Fast Soft recovery diode in B+ and low voltage power supply