i've doin' some hard rock/metal session in studios for about 10 years now,
imho, i seriously recommend you a H&K access preamplifier
if you looking for some rock-metal sound. :D
it is 3 ch preamplifier,
it has two 12ax7 tubes for ch 2(crunch) and ch 3(lead).
ch1 (clean) is tr clean, and i think it's probably the best tr clean
you'll ever find.
i have a mesa triaxis with phat mod, CAE 3+ se and H&K access.
comparing the others, access has more hook options such as efx loops,
and various output options that others don't have.
about the tone, once i compared access hooked with
Groovetube D75 power amplifier(with KT88 installed) to
triaxis hooked with mesa 2:90 power amp, and both set
go to bogner oversized 12x2 cab(v30s).
as you know, opinions about the tone and sound is
all based on your own preference, having said that,
imho, access just eats up the triaxis alive. :twisted:
about rocktron piranha, i don't have it now, but used it for months before.
again, imho, rocktron stuffs sound little harsh to me, including prophesy.
prophesy has really great efxs such as delay and flanger stuff, but still
it's gain sound(incl. RIP Dime's preset) is bit too harsh.
i recommend you to try piranha before you buy one. 8)
i think you can find H&K access from ebay for good price.
btw, i used jmp-1 for about 4 years (since 2001),
sold it to my friend for 300 bucks after i got access. :)