Hello, by now I'm kind of fed up with my Ampeg heavyweights SVT and V4-B. Plus not getting the sound I wanted out of the latter recently in the sudio, I'm seriously considering getting a different amp. This is what's on my wanted list: lightweight (max. half of the V4-B) (semi-)parametric EQ with at least two mid range bands 400 (ss) watts or more into 4 ohm tube preamp preferred class d power amp preferred So far I have found these amps: Eden WT550 and WT800 Carvin BX500 and BX1500 What else is out there? There must be more. If there are no more heads out there, what combination of 19" rack units would come close to this (e.g. EQ, preamp, power amp)? Thank you.