Whats to say. 100% pure class A. No biasing etc.. 200Watts into 8ohms, 400watts into 4ohm, 800watts into 2ohms, 1600watts into 1ohm and 3200watts into 0.5ohm. Stable to 0.1ohm. 245lbs each. Sucking 2.5KW out of the line and giving up 1.5KW of heat each.

Ouch!