Phil ... glad to read that you were able to hook up your sub with good results. Your tale is somewhat similar to my situation when I tried to hook up my self powered Paradigm sub woofer to my former Ref 3 (now 5 SE). I went the impedance buffer route. Actually, had no choice. My sub is not set up to be driven off my Ref 150 amp.
Just curious. Why did you contact Sumiko rather than ARC tech support??
Just curious. Why did you contact Sumiko rather than ARC tech support??