Furutech spades on copper cables

Not sure why the links posted as shown above since I entered links to the specific associated reviews and product (in the case of the Furutech link), but Dagogo and 6moons both have specific reviews of Furutech cables you should be able to find.

This Furutech cable is expensive- I need 10 ft. speaker cables in bi-wire config., meaning 40 ft of cable- almost $1500 in cable only. I already have connectors- another $200?
But it seems you like it quite a bit.

Maril555, yes I do like the Furutech stuff and it is somewhat expensive, but less than bi-wire Cardas GR in 10 ft. lengths. Furutech also makes less expensive bulk OFC cable. The Furutech cable can be purchased from Partsconnexion, who has sale pricing of 15 to 20 percent off about 3 to 4 times per year.

I also like the Harmonic Technology cables, which you could probably purchase used for less. I would recommend two single runs for your bi-wire run. I have used Pro 9+ for LF and Pro 11+ for MF/HF and that worked out pretty good. Pro 9 Reference is good in the bi-wire configuration. These HT cables come up for sale used in 10 ft. lengths occasionally and you could purchase one 10 ft. length and then run jumpers until the second opportunity comes along. Then, if you like the single wire better, simply sell the second pair. If you only have one set of binding posts at your amp, you can still run double cables, just stack the spades or go with a spades and bananas set-up. The Speltz option would be a very economical way for you to try single wire and biwire options in the length you need. There are a host of other inexpensive options if you search these threads, including DIY with CAT5, Canare star quad, VH Audio bulk wires or others.

These would be hard to soundly beat for the price, and they are in your length and bi-wire with two separate and dedicated wire sizes;
http://www.audiogon.com/cgi-bin/cls.pl?cablspkr&1304647307&/Acoustic-Zen-Double-Barrel-10F

I'm not sure, they would work with my speakers. I have Avantgarde Duo Omega G2- they have two pairs of binding posts- one on the midrange driver, and the other for the tweeter and active sub. So, I think, I need double- barrel with the same gauge on both parts.
Or, a single wire and a jumper.