Unless the room is small and or hardwood floors, less than 250wpc is asking for the amp to run out steam. I measured the draw from a 90wpc amp, tubes in fact, with the 3.6, and making less than 91db at the listening position, I was out of power. The meter pegged. Get a Monster 4bsst or 14bsst if the room is big and you like loud. Tubes are fine if you like no bass drive in a big room. Try both, and measure the power output and db in the room. The facts will speak for themselves. Jallen