I talked to designer and head honcho (he's a honcho!) Alan Yun at Silverline Audio when I bought my Preludes years ago...he said that although they have bi-wire capability, they sound more coherent single wired...I tried both and found that he was absolutely correct, as well he should be as, after all, he's a Honcho.
Night and day speaker connection
I
made a great move since I have had always my speaker connected my
speakers in BiWire configuration with Biwire speaker cable. So, I
connect the two red speaker wire to the (+) to the "bass speaker
binding post" via a banana plug. I did the same with the two
black speaker wire to the (-) "bass speaker binding post"
via a banana plug. The result is realy astonishing ! I would never
go back to biwire connetions. But you must use a good quality jumper,
to link the two black speaker binding post together and the two red speaker
binding post
together
. I can not stop listening now... to my new reveal music
collection.