John,
I appreciate the info and thanks very much for the detailed answer. I think what your suggestion makes sense. While I am not a bass freak I would like to enjoy the deepest bass in HT (or music). Your recommendation also makes sense since the Jmlab 920.1 have a 10’ woofer and thus maybe a 10’ sub would not go lower anyway. I guess that I could try to find one of these (the price seems decent) on audiogon. I just need to see one to make sure that I (i.e., my wife...) can live with the size.
Thanks for the help. If I buy one I’ll let you know what I think about it.
Raanan