I'm sure you have probably seen this article called The Cool Sound of Tubes...We all know how tubes don't clip the way transistors do, resulting in rounded waveforms and all.
I'm sure you have probably seen this article called The Cool Sound of Tubes...We all know how tubes don't clip the way transistors do, resulting in rounded waveforms and all.
And therein lies the difference in the sound of the various boxes :grin:Murphy said, noting that the unclipped waves have no harmonics, except for residual distortion
Classic guitar amps have a moderate amount of negative feedback in the poweramp section... and most of the time they are not operated at volumes sufficiently loud to get into the poweramp distortion range. The distortion comes from either cascading preamp sections or boosting the guitar signal before it is sent to the amp. In addition, there is a lot of frequency shaping in the preamp and tone control sections of the preamp... the classic Marshall, for example, has a significant low frequency rolloff and a mid-range dip in the tone control. Tone shaping is quite important.in a Guitar Amp which is routinely driven into and out of overload, the un-clipped waveforms are not too interesting. Yes they have a residual imperfection (whatever perfection could be on a signal that has no acoustic source) but it is mild.
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