you wanna get a 5150 sound from an avt150
OD2 max gain
Max preamp volume
Bass 30%
Middle 100%
Treble 100%
Presence 70% +
now i have both a 5150 and an AVT150 and i really love them both, these are the closest settings i can get to my 5150, using my Squier Strat with JB jr bridge pickup.
i really like my avt150, theres more gain than i need available on it and it sounds better for metal than any other amp ive tried in the price range, it does metal better than a TSL, though when its turned right up it loses all its real good qualities.
though if you can afford a 5150 then go for it, their lovely amps, they dont take pedals well though.