Hey guys I was looking around at a few different guitar pre-amps (Engl E530 in particular) and noticed that getting a dedicated rack-mount power amp was usually pretty expensive. Then I remembered that Dark Tranquillity use Behringer V-Amps with 6505's for poweramps, was just wondering how this would work? a 6505 is cheaper than an ENGL, Mesa, or Marshall power amp of the same power, AND you get a built in preamp with it basicly. Would you run the preamp through the front of the head, through a clean channel? or insert at the FX loop return to completely bypass the amps head, if thats even possible?