The OP mentioned that it has Tri-amp binding posts. The only way I've seen this is with three pairs of binding posts jumpered together (e.g., as with the MIrage OMD-28 which I am familiar with). When removed, the three pairs feed the woofer(s), midrange, and tweeter, respectively. So I'm saying remove the jumpers between the woofer and midrange, but leave the midrange-to-tweeter jumpers intact. Then use one amp to drive the woofers alone and a second amp to drive the mids/tweets which are jumpered together.
02-20-12: Kr4
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Jumper what? Why? Cannot think of a jumper in this situation that would not create the potential for a short.
Kal
If the factory jumpers are one-piece bars that connect all three, remove them and insert jumpers to connect only the mids and tweets.