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 $1200 worth of cable).
fineberg
I have a 20 foot pair of MIT T2s BI-Wire from AudioAdvisor and they were a steal at 50% off list. They have some MH750 S2 BiWire at 50% off also, but probably not 25 feet.
I have been using MIT t2's Biwire for over a year while upgrading power cords and tweaking out my system. They have not let me down and am happy with them. Excellent cost performance ratio. Another option is that you might select the terminations you need if go with ICON (large or smaller )spades. In my case the Stratus Gold required the largest Icon spade to be used and standard size at amp end.
Good luck
Not promoting any company but currently there's a demo pair of 20 feet bi-wired 8TC terminated with spades all around on sale at AudioAdvisor. Perhaps you could try them and see if they sound ok. I know it's a bit shorter than your requirement, but if could get around it somehow, it would offer a great value for your buck. Also, you can send them back with 30 days if they don't work. Cheers.
I am against Kimber 8tc since they have a very high capacity that is not suitable for some amplifiers + it's an addition of extra capacity into the speaker circuit that will certainly change the freequency curve. I would suggest to go for monoblocks and invest money to the long interconnects such as Audioquest Torquoise or DH Labs...
For speaker cable runs that long, your best bet is a networked deisgn such as Transparent (high$) 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.