Need more bass response

You may effect some drastic changes just by playing with the placement of your speakers. Isolation feet can have a big effect on the components, and certainly the acoustics of the room is a huge factor.

Since you have not spoken about any of these issues, you might lay them out for us Audiogoners to consider before making equipment suggestions.

Ax you really need to experiment with cabling & tweaks; I didn't used to believe in this either until I tried it. Bottom line: you really don't know what your existing equipment is capable of until you find the right cables & tweaks to make it sing. Get better components & then choke them through your same cables & you'll continue to experience unsatisfactory results.
You need to experiment with upgrade AC cords (no two sound the same so be prepared to try different cords on different components) also experiment with interconnects & speaker cable. Then move on to shelving, pods, cones, footers, etc.

Regarding the need for more gain: I don't understand what you're seeking without further explanation? You want more power; then a larger amp is in order?

Hi, Axspike. Don't be so modest, you have great gear! I recently gained bass response and impact by changing the tubes in my Blue Circle preamp and upgrading my entire cable set to Virtual Dynamics. This weekend I swapped in an NOS pair of VT-231s to replace some 6SN7 GTBs and got bigger, more extended bass. I was quite surprised. If you're using stock power cords, the Virtual Dynamics cords will definitely be a big improvement in all areas, not just in the bass. Funny thing is is that I wasn't even looking to improve bass, I was trying to improve other areas of my playback, and the bass got better as a byproduct.

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.

Upgraded power cord would help, different IC's or speaker cables. Believe it or not a FIM #880 AC power receptacle could improve bass responce also.