Speaker cables or interconnects??


Speakers: Spendor A6
Amp: Musical Fidelity M6i integrated
CD: Cambridge Audio azur C350
Turntable: Pro-ject Xpressions III
Cables: Audioquest Evergreen interconnects, Monster XP speaker wire

The Monster Cable sounds pretty good but highs are a little bright and mids slightly forward. I've tried DH Labs T14 and Blue Jean Cable and the DH sounded a little bright and "thin". The Blue Jeans Cable highs were smooth but the mids were a bit recessed.

Here's my question ......would I be better off keeping the interconnects consistent and trying to adjust via speaker cable? That's my current thinking. Any suggestions on a step up speaker cable that is just plain flat. Any guidance on the Cardas "Neutral" speaker cables. Any other recommendations, thoughts or suggestions are appreciated.
mmt
I have a pair of 25 foot blue jeans cables (10 gauge) with bananas cold welded. I did a back to back comparison with a pair of 7 foot audioquest rocket 44's. Couldn't get the rocket's to stay in my amp very well at all and I actually preferred the sound of the blue jeans cables. I do like audioquest interconnects though and am using a pair of Diamond back rca's and will buy a pair of diamond back xlr's to replace a pair of monster interconnects when I have the money.
I pulled the trigger on the Acoustic Zen Satori. I'll post some comments after I get them later in the week.
Thanks to everyone for the feedback.
Mogami 2549 for interconnects and Mogami 2921 for speaker cable. You can get both for a rather inexpensive amount. I use Audioquest BFAs on all the 2921 speaker cable ends and the Pro-Fi connectors on the 2549 ICs. The less expensive Neutrik connectors are good also.
The AZ Satori's are hooked up and I'm breaking them in, but first impressions....much, much cleaner than the Monster XP. At higher volume there is no edginess, with more depth and a separation of instruments I have not heard before. Frequently when jazz trio or quartet members are playing competing riffs at the same volume, sounds often get smeared, not so with these cables.
I tried DH Labs T14's and they were just bright and thin sounding, no better definition compared to the AZ. The AZ sounds CLEAN and neutral. I've only been listening for 30 minutes or so, but they sound great and are giving me what I had hoped, accuracy with no edginess, no false sparkle. Accurate across the entire bandwidth is a great description so far.
More later.
The Az's are opening up as I am listening, it's amazing why just a little burn in is doing. Even more depth and sounds as though has added vertical dimension as well. I'm really gonna enjoy these.