Finally Learned: Subs serve much larger role than adding more low bass

Getting 1 or 2 subs that integrate well with your system after having a boomy sub meant for home theater gives you an appreciation for what subs can actually do for 2 channel stereo.  In a small room you can get away with one good sub.

I'm an outlier apparently.

I had two JL Audio subs with their fantastic CR-1 crossover and also added DSP.

Nothing life changing.  Didn't do much for me.   Didn't find the added low bass to be significant and I preferred the tonality of my speakers without the subs.   Sold it all.  Happier with fewer ugly boxes in the room, fewer cables, less hassle etc.

(Great products...I just didn't need them to enjoy music).

I too am a subwoofer convert. I bought a REL S/812 last year and couldn’t be happier. One thing I also notice as it was mentioned many times in this thread, is that the sub also enhances the SQ of mid & high frequencies. I never understood how this works. I always thought if you set your crossover at let’s say 50hz, the sub only outputs sound at frequencies below the crossover.

Can someone help explain in layman’s terms why a sub can enhance the SQ of frequencies way above the crossover point?

Thanks very much.

Extended response down to 20hz without significant rolloff is rare and definitely impacts what you hear on many recordings.  One or more adjustable powered subs  and even a simple sound meter app to integrate properly solves the problem and one is very likely to take keen notice.   Nothing mysterious about it.  Amount of work and expense needed will vary case by case.   More subs can only be better once set up well.