Hi Chad,
Yes, over the years Brian has had different designs that have different "connections'. However in the RM40 you have the following:
1) Standard RM40 with onboard (internal) analog XO. This speaker will have 2 pair of standard binding posts with the woofers driven by the top pair and the MR/Tweets driven by the bottom pair. They will need a "jumper" or a Single BiWire if powered by a amp channel or monobloc.
2) The RM40 with OUTBOARD (external box) analog XO termed an "OXO". This speakers OXO will have 2 pair of standard binding posts with the woofers driven by the top pair and the MR/Tweets driven by the bottom pair on the "in puts" and 3 pair of wires that connect to 3 pair of binding posts on the rear of the RM 40.
3) The RM40 with DIGITAL OUTBOARD (external box) digital XO termed the "DOXO". This speakers DOXO will be fed signal from the preamp, and will then perform all XO functions in the digital domain. It will have 2-3 pair of RCA line level outs that then go to the Power Amps (biamping required/triamping possible) The appropriate amps, then will power the standard binding posts with the woofers driven by the top pair and the MR/Tweets driven by a "bridged" connection "OR" they can be separately amped. (creating triamping) In this version the RM40 will also have 3 pair of binding posts on the rear.
Probably sound very complex, and that is why it is best to explain and communicate it over the phone or in person.
It sounds to me like the OP has one of the OUTBOARD versions and is attempting to connect it WITHOUT the crossover.
