Sounds like you’ve got your priorities straight in terms of more highly valuing 2-channel. 😜 If possible I’d have all four subs working in a swarm array for stereo assuming you could have both LFE and L/R line-level inputs connected to the SVS sub simultaneously. That’d be your biggest benefit in employing your NHT sub IMHO. FWIW.
Subwoofer with center channel
Does anyone here use a subwoofer with a center channel? I was watching a Riverside concert dvd today and was surprised by the amount of content being sent to the center channel. My Sonus Faber center speaker sounds good, but I wonder what I might be missing. I have a decent NHT SubTwo I subwoofer that I'm not using. Maybe I should give it a try..