Today I plugged in my apc theater power conditioner and it blew up. Spark than nothing. I have a panamax m5300-pm as backup but not sure if it really does its job. What do u guys recommend for this gear? I have been doing alot of reading. Furman pfi. Audioquest overpriced at $3500. Panamax m5300\/m5400 not alot of info out there on them.