I must agree with using REL. The hook-up mentioned above uses 3 bare wires on the end where you would connect the Plinius. I use a Stadium III with my Hales T-8s through an ARC VT-200. The adjustments on the REL are very fine, allowing level and frequency to be adjusted almost perfectly. If you also use your system for home theater, you can run an RCA cable to the REL and have both inputs hooked up at the same time, setting a different level for HT.
Good luck!!!
Good luck!!!