I have my subwoofer and my reciever plugged into my power conditionner APC H10. Haven't see any problem at this time and i feel more safety when storm comming. Sometime i can see it work hard. Isn't a good way to regulate your voltage and avoid spikes ?

Nad C356 DAC & C515
Axiom M3v3
Grant Fidelity RPF-120 MKII
Analysis Plus Black Oval 12&10
JRiver 19