How do I choose between speaker level (high level) and RCA level (low level) inputs?
It depends on the situation. In home theaters, when connected to a home theater processor or receiver, an RCA connection is almost always the best way to go. There are a few exceptions and if you feel you might need advice on this please call or e-mail me. The amp section on the Subterfuge doesn’t specify a mono input, but I use the left channel as a rule of thumb. If you feel you aren’t getting enough gain with a single input, a Y-adapter can be used to utilize both the left and right inputs. I find that the Subterfuge has plently of gain with a single mono input, but every home theater processor seems to put out different levels for the sub output, so don’t be afraid to experiment. For music, it’s a little more variable. If you have multiple sets of preamp outputs at your disposal, then you can try the RCA level connections on the sub, but I would strongly recommend comparing it to the sound you get with the speaker level inputs. I find that I prefer the sound of the speaker level in
