Hi, I got an Engl E570 preamp that I run through a VHT 2/90/2. Even though it's tight I can't help to think it is somewhat too thin sounding, will it get more brutal lower end if I pair it with an Engl 6L6 power amp? I was thinking the E840/50 or the Engl E850/100, the latter is really overkill but has the additional depth controls. So basically this is a VHT vs Engl power amp question. Does the Engl PA colour the sound more and will it help me get a "heavier" "riffing" sound? The VHT has KT88 which is supposed to have the bottom end of 6L6:s but feel there is something missing - more than my ability as a guitar player.. Hope this subject has not been beaten to death, did some searching but could not find too much info about this.