I agree wih Cio52. We have had the best luck with integrating the Velodyne DD series subs with the Joseph Audio speakers.
What subwoofer for Joseph Audio RM25si
What subwoofer will fill out the sound from my Joseph Audio RM25si speakers (currently driven from an Anthem MCA-20 amp)? In addition to the usual considerations about sound quality, I have a couple of connectivity needs to meet: I want the subwoofer to have loop output with RCA connections, and to be able to turn it on and off with a 12 volt signal. (These specifications are so that I can continue to use the second set of outputs from my Aloia pre-amp into amplifiers that drive speakers in other parts of the house.) Suggestions welcome. Thanks.