I should point out that the tone controls on a guitar amp are nothing
like hifi tone controls and are responsible for much of the
characteristic amp sound.
Hifi tone controls have a flat response at 12 o'clock, don't interact,
and perform subtle effects on the frequency extremes. Guitar amp tone
controls don't care about flat response anywhere, interact all over,
and perform mighty radical frequency response changes.
The Fender, Marshall, HiWatt and Vox tone controls are all very
different, and have their own characteristic curves.
Same deal with speakers and cabinets. For instance, an open-back
guitar cabinet has it's own characteristic sound. And closed back
guitar cabinets almost never have any acoustic stuffing, so there are
internal reflections all over the place. And there are no tweeters.
-- Don
--
Don Tillman
Palo Alto, California, USA
don@...http://www.till.com