(06-29-2014, 09:06 PM)Hangman Wrote:(06-29-2014, 03:43 PM)meexiko Wrote: Thanks Hangman, you're right, 10% is nothing. Maybe using an attenuator could be a better choice...
yeah, there are a lot of great attenuators out there. My friend uses a V2 and its still way too loud.
I say, pull two tubes and change the impedance "permanently" in order to save two tubes and buy the best good pairs instead of quads (or cheap pairs x2 instead of a cheap quad), unless you are running out of bass headroom. Then again it's "only" 3db of bass headroom - the output transformers (and power transformers) make low frequency headroom and power possible, even with 2 tubes. I think with amps like Marshalls and such, if I'm not mistaken, the 2 power tube models have OTs that weren't as hefty as the 4 power tube models, which is why it can make a lot of sense to properly run pairs and adjust the speaker output impedance on a 4 power tube model rather than run 2 power tube model--more low end girth that way. On the ampegs, the bigger benefit may be that the V4 type run lower voltage than the V2 type do...
But whatever the case may be, you save 2 tubes if you don't need the extra headroom if nothing else, and only lose 3db...