25 foot bi-wire speaker cables that won't bust the bank?


I have finished upgrading my 2-channel music system. I have an ARCAM CD, Musical Fidelity A3cr pre and power amps connected to Magnepan 1.5/QRs. I use TMC interconnects.

I am still using a single run of original Monster cable (14awg I think) with bananas (speaker) and bare wire(amp). I would really like to upgrade to quality wire and believe bi-wiring makes a big difference with Maggies. My room config requires 25 foot cables.

Audio Advisor is selling off the old MIT Terminator 2 biwires for a good price, but I'm not sure how these are, the Black Box makes me nervous. Other solutions seem problematic (my budget is under $500). Should I use a single run of better cable or a biwire of less expensive ones. Are the MITs really my best bet. Any ideas appreciated (that don't include $1200 worth of cable).
fineberg
For speaker cable runs that long, your best bet is a networked deisgn such as Transparent (high$) or MIT (T2 or T3 is pretty cheap). People like us who are stuck with having to use long speaker cable runs are better off with networked designs, because they're better compensated for flatter group delay performance which is especially good for long runs compared to a non-networked cable. Just to put things in perspective, my 25' biwires are the MIT MH750 Magnum, but those list for $3800/pr. so you might not want that. BTW they make even better than that if $ aren't an issue.
Rather than Kimber 8TC, I would recommend Kimber 4TC. I have had both, and found the Kimber 4TC to be much better balanced. Kimber 4TC has much too much bass in my system. These cables are an excellent budget buy and will not degrade even a very quality audiophile system such as yours.
Did anyone catch Schange above? The guy's using Thiel CS7.2s as his "home theater REAR speakers"!! Dude! Whattya got up front?!

By the way, I use 4TC double runs & it works well.
One of my good friends thinks pretty highly of the LAT speaker cables. Some inexpensive ones I have used and been impressed with are: Kimber (the older, thick brown/black interleaved one - don't know the model number), Analysis plus oval 9, and, for some applications, Sumiko OCOS. I had GREAT results with the kimber and my old mg 1.6's.
After looking around alot I think that I am going with Analysis Plus Biwires (oval 9 for bass and Oval 12 for treble) I found an amazing deal on a demo pair. And they seem like superb cables. I'll let you know after they arrive how they sound in my system. I really appreciate all the suggestions.