Bargain interconnects to tame treble & boost bass?


Here's the system:
Sony DVP-NS755V
Audioquest Alpha Snake
Bryston B60R
Kimber 4TC / 8TC bi-wire
Triangle Heliade ES

Problem: Sound tilted way toward top-end.

I've done about as much as I can in speaker placement and room adjustments, but the system still sounds too bright and too bass-shy. The treble is also a problem when running the television sound (digital cable) through the system, so, while I recognize that the DVD / CD player is not the best, I don't think it is the primary culprit. (I do plan to upgrade the CD player eventually.)

I sort of suspect that the ultimate solution would be either to replace the amp with a tube amp or to replace the speakers. But both are recent purchases, so I would like to see if better interconnects might make a difference.

Are there interconnects for $200 or less (for 1m), new or used, that would help solve my system's problems? I am open to any other suggestions you might have. Thanks.
jpbach
Thanks for all the advice. Here are some responses:

--I definitely agree that I should relegate the Sony to DVD duty and buy myself an audiophile CD player, although I was hoping to avoid that. But, hey, when I have a little more time it should be fun to do the research and the listening tests.

--I like the suggestions to experiment, both with amps and with spectrum analyzers. Currently, I don't know anyone whose equipment I might borrow, so it may take me a while to get around to it.

--In the meantime, I see two votes for Acoustic Zen IC's, and one each for Signal Cable, Cardas 300B, Aural Thrills Active Gold, VH Audio Pulsar, and Mat Ref Mk I. Before I posted I also found recommendations for Kimber Hero. Any other cable suggestions or seconds of these recommendations?

When I buy a new CD player, I'll probably want to get a different, probably more neutral IC. If so, I might try replacing the jumpers on my B60R with this treble-taming, bass-boosting cable.
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Listen to Jond and Mapleleafs. Save up and get a used dac on the 'gon for around 300. Cables at this point are like putting perfume on a pig.
"Cables at this point are like putting perfume on a pig."

I like that one.. very funny!!! I agree the Sony is an ear bleeder. I just wanted others to say it before I. A nice Dac would certainly be a step in the right direction. Before you get to far gone into covering up the sound. Fix the problem first..trust me.. in the end it will save you from a lot of disappointment and possibly a little money too. You can get a DAC for as little as $150 that will smoke the Sony all day long. No interconnect will make as much difference as a better analog output stage and Dac will.
Wow - I'm a little embarassed about the Sony now. But like I've said before, I plan to replace it. When I do, I will need to replace the Alpha Snake IC's, and I will still want something good but not expensive (under $200/m, new or used). Any recommendations, or will it all depend on what CD player I choose?