@thespeakerdude what is your view on the damage the internal vibration inflicts on the amp fidelity in active speaker designs? Have you ever tested this.
Yes to test. For a DSP based crossover, virtually non existent. There is nothing anywhere in the system that a signal passes through a capacitor which can be susceptible. Weak potential analog signal level crossover, but that is mainly a component selection issue. We use a soft silicone encapsulation in some areas in some speakers and our electronics are not open to the interior, but that is as much for reliability. If the speaker is cranking 100db, the distortion is probably already climbing, and the simply large levels mask anything low level, if it was happening. I can't go into details of testing, but as you would expect, multi-tone stimulus comes into play, a tone that could perhaps resonate something on the boards, and then a second reference tone(s), with both of them monitored.