10" self powered sub-woofers.....

@donvito ..  thanks for the info.  Unfortunately there are no real "dealers" with retail stores in my area, just custom installer dealers, and they only deal through stores.  It is a very interesting product and if this was for a home theater application it might be AOK and I would probably take a shot.  I have a real concern about the response speed of this unit being able to match the response speed of the 8" woofers and panels.  While the NHT B10 d could match the NHT C10 couldn't or I would have stayed with it. Instead they are both doing service in living room home theater.. 

@ghosthouse4 ....  thanks for your response.  1) is certainly true. I recently upgraded a digital front end including power and digital cables and this hobby knows no limits.  2)..  LOL, might be true but until it proves itself in my system is isn't true and many have marched in with gear and left with it. Setting a sub with a phone app and room correction software is a new world for me after correcting my room with ASC traps, tubes and panels.  I wrote down the recommended test track and will try it.  Stereophile shows a recommendation for several of their larger subs and that does count for something.  I think I'm starting to lean to the Martin Logan unit due to 60 day satisfaction guarantee from MDirect and the similarity of designs in Martin Logan's brand with their electrostatic hybrids and my Acoustats. I tried their app in Demo mode and find it pretty amazing too, better than 70 trips to the back of the sub-woofer to turn dials. Thanks for taking the time to respond.

@boxer12  ... appreciate the response.  45.5" high sub-woofer tower is not what I had in mind.  ...  nor is a three month wait.  This is more a story of speed, accuracy and sophistication instead of brute force. 

midareff1

Your "leaning" certainly makes sense to me. I’ve a high regard for Music Direct given several purchases from them and a couple no hassle returns. Don’t think you can go wrong buying there. Good luck!

@ghosthouse4 thanks again... I have a test track for you as well. It has some lower guitar notes and an organ note the NHT B10 d could not handle, the C10 did better but not decently. It’s on a Patricia Barber album, "A Distortion of Love", 24 bit FLAC on Qobuzz, I suppose Tidal has it as well. I believe it’s on cut 1, "Summertime", but without a sub in the system today I can’t tell you where it is time wise in the cut as the 8" woofers in the Acoustat modules simply didn't acknowledge it’s existence. While they do a fabulous job fleshing out vocals and instruments below the panels range their ability to do bass fiddle and low organ notes is somewhat (LOL) compromised. They were rated -3db at 30 hz when new three decades ago and could use help down there now, especially with by a sub with contour controls. The ML is rated 24-200 hz with controls for +/- 10 db @ 20-30Hz Level. The B10 d was rated -3 db @ 29 hz and the C10 was rated @ -3db at 22 hz. I’m going to sleep on it tonight but I seem to be convincing myself that ML from MD is right for my application.

Thanks, @midareff1 - I will check out that Patricia Barber track.

FWIW, I have had Rel Subs for over 15 yrs with no reason to move elsewhere. Some talk about its lack of 20 hz bass and its expense. I just know it works for me, a drummer who LOVES a good bass line more than most. I can't say the others are inferior. But I KNOW how easily the Rel's integrate and how they add, not just bass but expand the whole musical range. The T7i or T9i will work, except for the depth which is 15".