Help with advice for high end speaker cables for my system!


Hello I could use some advice with speaker cable choices.  I am using a Marantz AV-7704 preamp, 2 Krell  KAV250a amps, and a Krell KAV 250/A3 amp.   The 3 amps are running to a pair of Martin Logan Request floor standing speakers, a Martin Logan Cinema center channel, and a pair of Martin Logan in ceiling surround speakers.  2 of the amps are bridged, one each dedicated to a Martin Logan stereo speaker, and the Krell 3 channel amp is running the center and rear surrounds. I listen to about 50% stereo music and 50% home theater.   I could really use some help and advice with stereo speaker cables for the Martin Logan stereo speakers.  All the high end shops in my area seem to have closed, so the ability to demo different cables is apparently not an option.  I am considering Audioquest Oak cables, but really open to suggestions, especially if you have used similar components with good results.  Thank you!!
admiralrobert1
Thanks everyone.  I need 4-5 foot each. They are biwire at the speakers, so that is the desired configuration. I am not sure what adequate room treatment is, but I would say my room is a great size and a little “bright”. It has hardwood floors with an area rug that helps dampen reflection.  It is not a perfect room, and I am not looking for a perfect system, just a very substantial upgrade from what I have today.  Thanks for all the advice!

Just call the Cable Company and demo a few pairs at different price points. It’s almost free (5% of retail) which means for $100 towards any purchase you can demo $2000 of cables. $150 for $3000 worth. Try some. See what you like. I have Cardas, Kimber and AQ right now that I’m borrowing but what works for me may not be best for your system. Just try some and see what you like.  No need to listen to what anybody else has to say or listen to bs about lamp cord.
Going to be endless suggestions. MY suggestion is same as ron1219, The Cable Company can assist you if you live in USA, loan you cables for a fee, which is given back to you 100%, as a credit if you buy something, anything, later on.I also personally stick to the low end of the speaker cable game. My speaker cables cost one percent of the cost of my speakers.I use Kimber 8TC. (however I do use multi thousand dollar IC)
My amplifiers came with speaker wire.... off topic... I know....
easy to test the zip cord downgrade theory as you already have the Monster
agree on Cable company - what a great and effective business model
i use a variety of wire: Mogami in the mobile recording rack, Blue Jean and Non-DBS Audioquest in my vintage system, a mix of Kimber and Shunyata at the Condo
100% DBS Audioquest in my Reference system

I would caution you to temper your expectations, expecting a "very substantial" upgrade from your speaker cables is a tall order in my experience. Like Elizabeth, I found money was much better spent by proportionally spending more on interconnects than speaker cables. Again, she and ron1319 offer excellent advice in suggesting the assistance of the Cable Company.