Subwoofer for classical music listener

(((My goal is to optimize,)))
 By the way they are not sweeps
 They are Warbal tones.
 Its not that complected,
 Like i said above.
          Cheers JohnnyR

Now that I have my speakers and subwoofer are more or less in balance, I have another question.  I'm connecting them with cables that are probably too long (25') and very inexpensive (about $100 for 4 individual interconnects) that I bought from SVS.
Would this type of connection benefit greatly with better cabling?
Would it be worth investing in more expensive cables?
I'm happy with the current sound, but, you know, we're always wanting more!
 I don't want to go crazy with exotic very costly cables, but I'm just asking.

rvpiano- looks like you've traveled quite far on your sub journey.

Have you experimented with a power cable yet? I hear  noticeable difference when I swapped the stock cord. The "shape" of bass notes present themselves as more believable.

Naturally.. .YMMV

tablejockey:  Yes, I've come a long way.  Still traveling.
Thanks for he tip. 
Where would I attach the power cable?

The reason I'm asking about connecting cables is that I'd like to smooth out the highs which are a little bright.