Just bought Kef reference 1, now to choose speaker wires

Purchased Kef reference 1s and the rep recommended Audioquest Bi(something) wires, $1000+.  Seem pricey but these are kick-ass speakers and powered by a Rotel RAP 1580 AVR.   Any recommendations on great wires? Anyone Kef R1 owners with specific wires to recommend?

I just joined Audiogon and am starting to search through various posts.  Any help is much appreciated.