Hey all, I'm the proud owner of a new Peavey 6505 MH, which I have paired with my Mesa 2x12 Recto cab. Thus far, I'm loving the hell out of this amp for metal (much more so than my previous Jet City JCA22H). Sometimes however, It can be a little too bright for my tastes. I'm trying to find the sweet spot between high-gain and still somewhat articulate. Taming the high end in a way where it's not too present, yet not too muffled is what I'm fiddling with right now. The amp comes stock with JJ EL84s for the power section, and Ruby 12AX7s/ECC83s for the preamp section. Currently, I have a spare set of JJ ECC83s, and was wondering whether swapping the preamp tubes out would improve the tone/mellow out the high end. Do you have any opinions regarding putting JJ ECC83s in a Peavey? Also, if you have any questions about the 6505MH, I'd be more than happy to answer them!