@broken: I think we're talking about the same amp,
this one.
@Force666: as I recall, Slaughter was recorded with a couple of solid states, Peavey and Marshall, but I can't quite remember which models.
I know that The Crown's Marko Tervonen used one, and I think "Deathrace King" was recorded with it and a Savage.
I had that amp for years and the other guy in my band had a 5150 II, so I managed to compare them quite often. The Ultra isn't as brutal (gainwise) and loud as the 5150 II, but it's WAY more versatile, has a quite nice clean channel (while the 5150's is, meh...

), plus it has 3 channels.
All around, it's a great amp for its price, I sold it only to get my Savage SE!
Here's a
pic of my Ultra Plus with me on stage... That red logo is just awesome!!!!