Bigdish, you didn’t mention what your budget is, however Siltech Royal Signature series cables have good bass. Wojciech Pacula noted in his review of the Siltech Ruby Double Crown power cable for Enjoy the Music that they "slightly highlighting the frequency band around 100 Hz". From my experience, the same should be true of the Royal Sig series speaker cables.
Also, the Royal Signature series cables sound warm, harmonically rich, quiet, resolving and very smooth. Tonal color is just right and not over-saturated. Plenty of meat on the bones if you’re missing that with your current wire. Build quality is also superb, though make sure you buy from an authorized Dealer as there are plenty of cheap Chinese knock offs on Ebay. There are a million other cables out there, but I can give them a qualified recommendation.
Also, the Royal Signature series cables sound warm, harmonically rich, quiet, resolving and very smooth. Tonal color is just right and not over-saturated. Plenty of meat on the bones if you’re missing that with your current wire. Build quality is also superb, though make sure you buy from an authorized Dealer as there are plenty of cheap Chinese knock offs on Ebay. There are a million other cables out there, but I can give them a qualified recommendation.