Theory Audio SB25 Speaker System Review

[speakers4me]

I have this system and I use my center SB25 in a horizontal orientation above my TV. My MLP is in line with the tweeter and it's fine, moving side to side there is a audible difference but it is subtle, I don't know if I have good enough ears to have noticed it without already knowing there is a off axis frequency response issue (and certainly none of my guests would ever notice). I don't think putting it vertically above or below the TV is a good idea because it's vertical dispersion is not good. If the speaker is above the TV and the tweeter not at ear level then all seats will be in vertical off axis nulls (I suppose you could use eq to boost those but I don't know if that's a good idea). I have this issue with my surrounds which are also SB25's, and are in a vertical orientation about two feet above ear level. All seats do not measure well with those speakers because all seats are in the vertical off axis nulls. In the horizontal position at least one seat will be in good shape.

If you are willing to tilt the center speaker down and point it at the listening area then you could use it in a vertical orientation and avoid that off axis null business.. In fact maybe I should do that..

 

[Iansl]

I am thinking of testing the speaker. Vertical, horizontal and vertical angled. I have rew and umik. I guess periodic pink noise/rta. A measurement at each seating position.

 

[TallMartin]

Recently completed construction of dedicated 12'w X 9'h X 15'D room with a Theory Audio 9.6.6 setup:
- Base layer IW25
- Height layer IC6
- Subs IWS 12-6

System powered by a Storm ISP Elite 24

REW measurements here: https://drive.google.com/file/d/1DKGsxWRjZp1LWmImP0sgvf-7O6iWBpBy/view?usp=drive_link

Results of initial DIRAC calibration below

 

[TallMartin]

UPDATE - due to a missed setting in the Theory Amps (they default to MIC input level from the factory), I recalibrated, and am even happier happy with the results. REW measurement file here.

 

[Dougey_Jones]

Stating again for the record that Paul Hales is brilliant and everything he’s produced throughout his career has been noteworthy.

 

[Brucemck2]

UPDATE - due to a missed setting in the Theory Amps (they default to MIC input level from the factory), I recalibrated, and am even happier happy with the results. REW measurement file here.

View attachment 425130

Big fan of Paul Hale’s speakers.

Are these after Dirac? (If so, can you show the L/R only or similar before Dirac?)

 

[TallMartin]

I have the REW measurements from our initial calibration (with the bad amp setting), but these are also post-DIRAC