XLR question for bass

Guys,

I have a Luxman 590axii paired up with an Antipodes K40 server and Weiss DAC 502.  The bass reproduction could be better for a couple of reasons.  I guess could benefit from some room treatment, although I really have no idea how realistic that will be as I don't have a lot of places to put room treatments without bringing an expert onboard to help with that.  

My question is whether or not, in your experience, any of the XLR cables would give me a tighter bass reproduction than my current cables, which are AudioQuest Red River XLRs.  I first bought them so I could just listen to my system and get used to the sound.

I know that I can do some additional things such as vibration reduction for the speakers, etc.  I have some IsoAcoustic Orea Bronze feet underneath my Antipodes K40.  I didn't really notice much of a difference.  

So, should I be looking at new XLRs or some kind of dampener underneath the speakers?  I will investigate room acoustic treatment at some point in the future.  Just looking at these other options for now.

Thanks.

Bill