hooking up subwoofer to 2 channel tube amp

I see.  So you are saying I need something like a spade plug at the base of the out and keep my banana plug into the terminal itself so there are actually 2 speakers (one main and a sub) attached to the same place?  Do I have that right?

Thank you. I'll give them a call if I can't figure it out, but I think what I said above is correct.

Imhififan, yes!  Perfect picture.

Thanks!  I was actually just looking at one.  I need to test them out, but a sealed sub seems like a better move for me than ported.  I don't want to bass to over power, just something to fill out the sound