cooking hot el34's/6l6's/6550's = fat and punchy chewy awesomeness
cooking hot el84's/6v6's = thin muddy mess with heavy gain
I beg to disagree wrt/ 6V6s - with the proper poweramp design (one that's made to stay as clean as possible), they work just fine with hi-gain preamps. Please come by and give my amp a try :mrgreen:
I wouldn't of course expect great results from a cranked up hi-gain preamp on a cranked up vintagey cathode-biased / no NFB amp like a Tweed Deluxe or Vox AC...
the 6v6's surely sound clearer and better (in my opinion) than el84's
but they still don't sound as thick and clear as the big ones
hair metal bands aren't super heavy, but they need that boosted JCM dry punch