I have had the Sonic Frontiers SFS-80 amp then upgraded to the Power-2 and Line-2. Purchased new long ago and still going strong in my 2nd system. I turned to SET amps and horns a few years ago in my main. As someone mentioned Chris is still in the audio world running Parts-Xpress and I understand that he does repairs and upgrades though my setup has been perfect for the last 26ish years. Buy with confidence as the SF stuff was always known as being built like a truck.
