You may want to add the new Transistor Research Labs (solid state division of Tube Research Labs) ST-225 integrated to your short list. It has 225 watts/channel, 3 inputs and 45 step attenuators. Price is $5500.
If that isn't powerful enough they also have a 550 watt/channel integrated, the ST-550.
Best,
Jack
If that isn't powerful enough they also have a 550 watt/channel integrated, the ST-550.
Best,
Jack