I was just looking around in the processor part of Crutchfield and saw the Epicenter bass restorer. Are these mostly for people who use speaker level inputs? Would there be a noticeable difference for me? I just have a pretty normal system. RCA from head unit to PAC bass knob, then out to a mono amp, then speaker wire from amp to sub. 99% of the time I'm playing 320kbps files (1% of the time it's Apple Lossless ~1100kbps). Would this improve my bass? I feel like I dont have a strong enough substage for it to make much of a difference. Maybe I do. Idk.... any input?