Hi DeanG,
I use tri-wire to hook-up to my KSP 400 as seen on Figure B. This evening, I tried to connect my KSP 400 again and the speaker was working fine. I could hear the sound from the two mid-bass woofers, tractix horn, and the sub-woofer. However, I could not hear anything when I tried to connect with a single wire to either "Mid In" or "Hi In" from the "Speaker Level input". Before the accident, I was able to hear music with this connection but now I'm not.
Thanks everyone