Budget Strategies forTightening up Bass?


My system: Opera Consonance 120 Linear CDP, Extensively modded Jolida 302B, Silverline SR 17.5 monitors. AudioArt Speaker wire. Various IC's. Short of buying a sub, what is biggest bang-for-buck upgrade to tighten bass? Wire? PowerConditioning? ("currently" I have just an upgraded cryo-treated outlet) Better footers? (I have vibrapods and cones). I've got about $350 to spend on this... I know-- that's not much-- maybe my goal and my budget are mutually exclusive. Still, any suggestions would be appreciated!
stuartk
BOB: My understanding is that Alan Yun designs his speakers with tube amplification in mind. At least I've read that somewhere-- that's not a direct quote from him.
As for the room, it's an "open plan", so the livingroom where speakers are located is separated by a half-height wall from adjacent diningroom and open to adjacent two-story entry. A pretty large space.
MICHAEL:I will look into the sub option. As for reinforcing the floor, it's hardwood, suspended. I can't see covering that with plywood.
MAGFAN: I suspect Vibrapods are not the best footer in my case-- I plan to try alternatives.
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Bob-- Thanks. Interesting point, which I'll keep in mind. For now, my goal is to see what can be done with the current set-up. If nothing works, then I'll certainly consider changing speakers or amp.
Forget about wires, cables, footer, sorbothane, and all the other tweaks. The most important thing in a system is the room and speaker placement. Not that I'm a guru or close minded, but anyone who thinks a new power cord or speaker cables will solve an issue like bass response batter than speaker placement is an idiot.

The cables and tweaks can and do work, but not to that extent. They're worthless if everything isn't set up correctly IMO.

I know... I'm going to catch a lot of flack for that one.
If Stuartk can not move the speakers there is no reason to recommend that he do so...