I call this photo "Battle of the Lightweight High-Power Ampegs." SVT 7 Pro vs. PF-800. The winner? Me!!!
But seriously, I am pleased as punch with both of these heads. Each of them have their strengths. I set both of them with knobs at noon, ultra-hi on (not a big treble guy but I do like what happens to the treble when you turn on the ultra-hi since switching to these Dunlop Super Bright Nickel strings), ultra-lo off. The PF-800 has a treble response that I dig slightly more, but the 7 Pro has a tiny low end bump that I dig slightly more. Was able to duplicate it by bumping the bass knob on the PF-800 a tiny bit past noon, though, and vice versa with the 7 Pro's treble knob. Still, overall, I think the addition of the tube on the 7 Pro gives it the edge. It's not a huge difference, but I think it's enough to justify the higher price. Still, each head gives me compelling reasons to keep both, as the PF-800 doesn't need a rack to tote it around, and the 7 Pro probably should be racked.