Need more bass response

Thanks for the replies. To answer a few questions- the rig is set up in a typical 14 x 14 living room with 9' ceilings, carpeted and the usual furniture. Speakers are about 7'-8' apart. The thing is jazz recordings sound great-I mean great. But when I put something wilder on like Clapton's "From the Cradle" it sounds hollow like so many other rock recordings. Those CD's sound great on my stock Ford-Bose system in my SUV, as does jazz.
By more gain I meant when I increase the gain on the Rogue it seems to get me closer to the mix for my ear. I have to say my hearing is not what it used to be. Years of construction equipment and in my younger years, front row witness to many many great concerts of the late 60's and early 70's, have finally started cashing checks. But having said that I am still not deef. I'm still convinced I know good from bad and better from good.
As far as cables go...UGH! that seems as bad as shopping for wallpaper. Where in God's name do you start and how much of a screwing can I expect to take? How do the electrons know what's a good cable and what's crap. I mean is the guy straped in the electric chair hooked up to Valhallas or 8 guage romex? I need help on this issue.
I could upgrade the Belles power cord I suppose and the Rega but why does jazz sound so good and not rock?
Thanks guys for listening. I'll take anymore input. This is fun.

I am reading all of these posts with scrutiny. There are many different opinions that lead me to believe there is no "Oracle" on this subject. From a simple matter of rock recordings just suck to an installing an equalizer or some other tone device. I am struck however by the split camps over cables. Years back, before there were lots of mid to highend audio makers, McIntosh and Crown were the big boys on the block. I don't recall any of their amps, pre amps, tuners, receivers, whatever, ever ever ever having "power cord upgrades" And their specs were, and in some cases, still are, the Gold Standard. I'm not suggesting arguing about Mac stuff as the best, I'm merely implying that with irrefutable specs with basic, basic power cords, who can make the arguement for power cord upgrades. As far as speaker cables, I'm not sure. I run big ass monster cables that are not what the true audiophile would consider great but I'm willing to listen to the arguement. I don't think the hemi analogy is accurate. You could always skip the cables and push start that pig. I've read numerous threads about speaker cables and I swear to God some of these guys really knock me out. You just can't make up some of the things they believe! I will try moving the speakers. I will try a pair of speaker cables that an Audiogon member has been so kind to loan me for a test drive. Who knows maybe pigs fly. If that yields nothing then I may spring for an EQ. Any thoughts on what type or brand. I've hemorraged enough money on this system for my socio-economic class, so make it a value for the money.
Thanks to one and all for your replies. Any other thoughts are welcomed.

Hey Kt...

Cool!

Far out man

Dave's not here.

Cheech and Chong (1973)

But I catch your drift...I think

Thanks Cellorover for the common sense approach. I thought the Belles and the Rogue were a good match which is why I was a bit disappointed with some cds. I beginning to believe that what you and some others have said, and what my compromised ears have been telling me. Rock recordings when put through good equipment, suck. Your right about auto systems. I compensate to the max to get it where I like it. With my home system there is no compensation. I hadn't thought of that difference.
I bought the Belles first then the Rogue. I tried for awhile to buy a Belles 20A pre but they were too new and too pricey. I looked for demos but they were few and still pricey. Has anyone auditioned a Belles 20A and could offer a comparision between it and the Rogue?
On cables, it looks as if I'm heading for the "in search of the lost cord" journey. I will try placements and cords and see what evolves. I'll try a new thread about the Belles 20A and see where it goes.
And while were on the subject of ladies underwear, anybody seen mine?