petermc61 wrote:I think it's a combination of things - more guitars are built for volume than tonal purity, transistors and then integrated circuits were invented and neither has the harmonic structure of good valves, and lastly digital recording came along in place of analogue recording. Taken together that's a far less pleasing, and in my view, sound accurate to the essence of the CG.
I'm guessing its also due to the characteristics of the recording tape, especially frequency response and saturation...? Then hand in hand with the transistors came compression and equalization.
But I'll bet you're right on especially with the valve vs. transistor bit.