quiet!

[Meole]

You're welcome. This is from Orange itself:
"As with all the other products in the AD Range, the AD30 features a smooth emission valve rectifier and full Class 'A' circuitry. This means that the amplifier runs at the same voltage regardless of what volume you use it at, so it produces a far smoother and sweeter tone."

http://www.orangeamps.com/common/guitarheads.html