Carlesdg: you and your friend are nuts for running the Maxx 2 with two amps. You'll completely mess up evertything in the sound. Which, btw, they are among the best speakers anywhere. And void the warranty.
If you have a bass response issue with a maxx 2 you either have a super large/lossy room or more likely incorrect placement. Possibly even a out of phase wiring issue.
If they are perfectly placed and you still want more bottom end (like for home theatre), buy a wilson sub and retain all the dynamics, imaging, timing etc.
Sorry to be blunt, but this is mistake coming from a former Maxx 2 owner (now Maxx 3's). No way nice to say it...
If you have a bass response issue with a maxx 2 you either have a super large/lossy room or more likely incorrect placement. Possibly even a out of phase wiring issue.
If they are perfectly placed and you still want more bottom end (like for home theatre), buy a wilson sub and retain all the dynamics, imaging, timing etc.
Sorry to be blunt, but this is mistake coming from a former Maxx 2 owner (now Maxx 3's). No way nice to say it...