I use these 12ax7's. "The fisher"
http://www.ebay.com/itm/Telefunken-12AX7-ECC83-Tube-The-Fisher-Smooth-Plates-O-Gtr-West-Germany-/222022460053?hash=item33b191e295:g:Ta0AAOSwezVWvjpv
you can get these for a fairly good price. Cant beat the telly sound.
Changing the input tubes in my amps...
http://www.discogs.com/Roger-Waters-Amused-To-Death/release/911132
Credits
Co-producer, Recorded By – Nick Griffiths
Engineer – Hayden Bendall*, Jerry Jordan, Stephen McLaughlan*
Engineer [Assistant Mix] – Sean O'Dwyer
Engineer [Assistant] – Andy Bradfield, Brian...
think of the elec source as water going thru a valve (transformer)
with the valve only turned on 1/4 of the way you will get flow(voltage) but no pressure/volume (current)
open the water valve more (bigger transformer) and you get more pressure=current, voltage stays the same.
thats how I...
would pink floyd be too much for these?...LOL
if you did need a bit of lower end, what if you mated up open baffle type woofers to these?
I love to dream about this sort of stuff.