I don't want to hijack OP's thread, but as an Omega user also experimenting with REL I am curious to hear how it goes, as well as what others think.
My Omega XRS floorstanders are rated down to 40 hz, and in my tiny room (11' x 10' or so) I haven't been using a sub. For fun, I pulled out the REL Tzero that I basically had packed up and was not using, and surprisingly I enjoy it. However, the Tzero supposedly barely goes any lower than my Omegas, so it's not really extending the bass as much, as boosting it.
I'm now wondering if I should (1) get another Tzero and run a stereo pair, since I like what Tzero is doing; (2) forget the Tzero and get a bigger subwoofer with a 10" or 12" driver, to get some actual bass extension; or (3) do #2 but get a stereo pair of the bigger subwoofer.
On one hand, I don't have much experience with subs, so I don't know what I'm missing by using the one Tzero. Would performance be much better with another Tzero or a a bigger sub? On the other hand, I don't want to end up with a sub (or subs) that overwhelm my small room. On the other other hand, I've been told in other venues that a bigger sub doesn't necessarily put out "more" bass, just lower bass - and that I really should go for a bigger driver.
Curious if anyone, including OP based on this recent experience, have any thoughts.