• WARNING: Tube/Valve amplifiers use potentially LETHAL HIGH VOLTAGES.
    Building, troubleshooting and testing of these amplifiers should only be
    performed by someone who is thoroughly familiar with
    the safety precautions around high voltages.

LTSpice and wavefile

I have just learned today that LTSpice can import and export WAV files in order to introduce more complex signals into the circuit and see how they come out.

Besides the "keeping inside of 2Vpp" requirement on the input and output which you'll need to set up voltage dividers for, and the fact the output transformer and component tolerances are incredibly hard to simulate, has anybody used this to generally test out the circuit in general for other obvious internal problems(like distortion introduced between stages, etc)?
 
LTspice tutorial - Ep10 .wave statement and audio file processing - YouTube
For musical instrument simulation.

There are songs re-recorded from output of a 300b se or other amps which claimed to have sound one would preferred. There are some who recorded music from output of simulated amp too, maybe even better, I don't know. Then some would want to compare different tube models so to choose the preferred sound which maybe cheaper than using the actual tube. The input/output level can be controlled by volume pot of course.
 
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