@analogj, the PowerQuest2 to my understanding was not designed by Garth Powell. For me it acted as a really good surge protector with some adequate noise filtering that made it a much better choice for an audio or home entertainment system than your average hardware store power strips. There really is no comparing it to the AQ Niagara series of power conditioners because the Niagara’s are audiophile grade units for dedicated hifi systems. The price of the PQ2 makes it a good place to start as you build your system or if you just want to have piece of mind protecting your audio gear.