I just added one sub to my analog system. I can't locate it or specifically hear it. However, if I turn it off, I notice it and the missing LF. I have a fair sized room 17d x 35w w/14ftcathedral ceilings, a 8ft wall behind and another 17 x 35 kitchen/dining room on the other side. The sub is set about half way. It's a NSM 15EXP with a10in driver. Plenty of bass for me. Mated with C & C Abby's.
