Is it necessary to use the same cable brand and model for bi-wiring??


I have a pair of Wharfdale Denton 80th Anniversary  speakers that can be bi-wired. I have read many pro and cons about bi-wiring improving the sound quality.  I still like to give it a shot, but do not want to use an expensive pair of speaker cables to satisfy my curiosity  All comments and recommendations welcomed    
sunnyjim
As some have mentioned previously, talk to a dealer for ideas of cables that might sound good with your particular electronics and speakers.  I have owned various models of Vandersteen loudspeakers for the last 30 years.  His crossover networks are intended by design to be used with biwiring.  In conversations with the folks at Vandersteen they are quite emphatic that you not mix brands or cable topologies.  What I did to maximize quality and control the price of speaker cables to some extent was to buy two sets of Audioquest cables from the same "family".  The mid-high cable had the highest quality conductors and the bass cable was one step below in that family with slightly less pure conductors.  I am confident you could employ such a strategy with cables from numerous manufacturers.
Its best to use the same cable...as a matter of fact, its even better to bi-wire with seperate (but same) cable for each leg  (4 cables/side)  Cables that have single connection on one end and double (4) connections on the other are not as good.