Microphonics are real. I used to have a phonograph preamp that you could smack and have it ring through the speakers, but the very very first problem you face is the cartridge itself. It’s essentially a microphone with a needle and the LP acting as a diaphragm.
The microphonic pick up of modern electronics however tends to be very small to none, and much higher in frequency.
The microphonic pick up of modern electronics however tends to be very small to none, and much higher in frequency.