I went from using single-wire Analysis Plus Oval 9 with gold plated jumpers on my Unity Audio Signature 1's to shotgun biwire Acoustic Zen Sartori. Huge difference for the better-improved bass extension and slam, better separation of instruments and voices, improved clarity and detail. Now how much of the improvement was due to the biwiring or simnply ugrading to a better cable is the question.--Mrmitch
