Microtubes 500 output power peak

Yes it can damage your cabinet. But that's true of any amp.

Keep in mind that the 500/750 watt rating is for a 4 ohm load and you have an 8 ohm load, so you will get overall less power. Just use common sense with the volume knob. If your cabinet starts to overload, turn it down.

 

Except that the master volume position has little to do with maximum rated power.

 

All controls factor into how much output power is delivered, as does the input signal strength.

Signal strength depends on the pickups, the bass setup, the electronics in the bass and very much the playing style.

 

Right, and likely playing style is the most underrated factor how much of sub harmonic "transient noise" is really deliverd to a cabinet if there was no "decent" HPF present that protects the cab from potentially harmfull (transient) sub harmonics.