In an FOH magazine interview, Big Mick Hughes (live engineer for the Led Zeppelin reunion tour) described Jimmy Page's Orange AD30 twin-channel amplifier head as "the loudest 30 watts I have ever heard!" That's not the only thing about the Orange AD30 that appears to defy physics. There are a lot of 2-channel tube amplifiers out there, but you'd be hard pressed to find an amp that sounds as different from one channel to the next as the AD30. That's because the AD30 is more like two completely separate amplifiers in one than a single amplifier with two tones. When you plug into Channel one, you get a frothy, vintage-style tone that purrs and growls like a big cat when you push it. Flip it down to channel two and you'd swear someone just swapped out your amp - the character changes to a tight and springy high-gain tone with