Reply to Post 33104 by uuudtimbo in Line 6
Isn't it kinda simple though? Valve amplifers.. when cranked up the distortion is harmonic with itself.. just because of the way the valves break up when pushed? and transistors (solid state) amplifiers dont give out harmonic distorsion but just total distorsion?
because i wasnt sure whether i was right i googled this up.
"Valve amplifiers distort in a different way from most transistors. Valves tend to produce 2nd harmonic distortions; whereas, transistors tend to produce 3rd harmonic distortion. Obviously, whichever type, we always try to reduce the amount of distortion to a minimum but most amplifiers will under certain circumstances produce a little audible distortion.
There is a big difference in a valve's distortion as apposed to a transistor's. The transistor's 3rd harmonic distortion is quite nasty to the ear. A valve's 2nd harmonic distortion, however, can actually be quite pleasant on the ear but still, it must be kept to a minimum.
Both valve and transistors produce other orders of harmonic distortion, of course. As a general rule, however, valves tend to produce distortion closer to the fundamental frequency whereas transistors can distort well away from the fundamental; in the higher orders. Higher order distortion is closer to signal related hiss although the higher the order, the more likely the distortion will lie outside the normally accepted audible range. "
thus a solid state amp trying to mimick a valve amp is only going to get so close..
that's sort of true, but alot of guitarists use fuzz pedals and large amounts of distortion, also tape delays are held in high regard and lots of people love the distortion on the echoes. all of those are high in 3rd order harmonics.
it's more the compression from the valves that makes valve amps more popular than solid state more than the distortion, as lots of people use solid state pedals for distortion, solid state has more headroom and higher fidelity compared to valve guitar amps, which doesn't flatter distortion at all and the whole point of using 12" speakers is purely to make distortion sound nice, valves aren't doing all the work.