My guess is that you or someone competent to do it is going to have to open the chassis, take a look at the internal wiring, and then modify the connections to suit your desires. You have not really said what it is you desire, but I am guessing you want it to operate as a 3-way in stereo. When you say "quad 4-way", a reader might take that to mean there are 16 filters that comprise 4 channels each of which provides for 4-way operation of a single speaker.
TDM 24CX-4 Stereo 3-way / Quad 2-way questions
I recently purchased a TDM crossover. Resoldered old connections and replaced the electrolytic capacitors. The unit doesn't come with a channel link switch & on/off switch on the back as the manual says it should. Wanting to run it as a stereo 3-way. Is it possible jumpers would need to be relocated to change from quad 4 way to stereo 3-way? Recommendations?
Thank you