Well I am concerned about a high powered cheap head that is versitile enough for rock, country, and R&B with little or no hiss when cranked. I have a Yamaha nathan east and will get a MMSR5 in a few months and plan on pairing this with an epifani 310. I want LOUD, punchy, but also modern and defined. I may go a power pre route like QSC 2450>ampeg svpcl or demter vtbp2001s. Any reason I should go one way or the other? So here are the 3 I was looking at Carvin B1500 Kustom groove bass 1200 Genz Benz GBE1200 any thoughts?