I have an older BP2000 center channel speaker that never did sound quite right. After owning it for a few years I thought I'd check inside to see what was up. I found both pos. & neg. wires for the tweeter neatly placed at the back of the speaker. I sent Chet at Def. Tech. an e-mail asking which colored wire went where. After he replied I hooked them up and it was like I had a new speaker.