Brilliant amps. I have the 7400 (Yours looks like the 7200). Brilliant sound, lots of flexibilty, and massive peak power. If yours is the 7200 its 200W continuous, and 2000W peak. It's a class H amplifier, so when it needs the extra power it switches to a higher voltage power supply. I suspect you'll find it deafening (We're talking Marshall Watts here, which I think is similar to a Trace Elliot Watt).
Gary Twigg often plays through one of these as well.