I’ve owned a number of Sonic Frontiers components over the years and the surprising negative comments some have submitted compelled me to share my personal experiences with Sonic Frontiers.
I consistently found Sonic Frontiers to be perhaps the best sounding “Bang for the Buck” brand in home audio in their day. Not in terms of “Entry Level gear for super cheap”, but in terms of True Audiophile sound for less than crazy insane prices.
While I’ve never listened to the Power 3, the Power 2 is by far the BEST sounding amp I’ve ever had in my system! For the record I’ve owned Threshold, Bryston, Audio Research, and BAT amps (among others). At the time the Power 2 was feeding Von Schweikert VR4-SR Mk II speakers thru a Chris Johnson upgraded Sonic Frontiers Line 2 Signature +.
I eventually sold the Power 2 because all those tubes heated up my San Antonio home in the summer. However, I still use the Line 2 preamp in my main system. I’ve got old stock Amperex PQ and White Globe tubes in it and in terms of sound quality, I’ll put it up against most anything else out there costing 3-times as much. FYI - it's currently driving a Scott Frankland modified Bruce Moore & Associates D60 amp feeding Return of the Legend MkII speakers.