sinnersmoon":315qfh42 said:
I had a chance to play both UL (through Fatbottom cab and Orange) and Sig X (through Orange 4x12) and both are great amps.
I'd take UL but I was probably more pumped playing it and Sig X just happened to be there too.

They don't sound the same but close enough to be happy with any of them.
UL sounded a bit bigger though.
Interesting comment.
I usually hear that the UL is supposed to sound tighter and more aggressive than the Sig:X.
When I got my Sig:X in a trade (also right after selling a Mesa Mark IV rev A), my initial feel was 'I'm getting the better deal anyway, might as well play it for a while and otherwise flip it'.
Well, that's quite a while ago now and the Sig:X is still here.
I do prefer the Mesa Mark's cleans to that of the Sig:X; even my lil' V:25 has *even* nicer cleans (seeing that the Sig:X already has nice cleans to begin with).
But...the main reason I sold the Mark IV in the first place, was the lacklustre R2, whereas the Sig:X shines with those in-between sounds (from Plexi to beyond).
Super high-gain, the Sig:X can hold its own, but would not be my first choice, after playing Engls for more than 10 years. The good thing is, the Sig:X will never be muddy (wacky settings notwithstanding), will retain a very open sound and you can vary the amount of saturation quite well.
I've been keeping my eyes open for a UL locally, but it's lower on the GAS list than a few other items;
Two Notes Torpedo Live and Engl Savage 60 would be my front runners now.
The good thing for you is, the Sig:X will sound TOTALLY different from a Diezel Herbert or VH4 (the only two I've played). More open, less congested (I'm looking at Ch4 of the VH4 mostly then), a bit more jangly and a different type of tightness.