I'm using S series for my main system (Strata III) and love it. The integration with music system is uncanny. I never dreamed that any sub could integrate so well. (Everyone asks "wheres the sound of the sub" until I turn it off!).
The T series are working VERY well for me in two secondary music systems that have small main speakers. The T series take small systems that would otherwise sound lean, and flesh them out extremely well. Integrates very well with the music, perhaps not quite on a par with the S. Home run overall.
As for HT, I prefer R series, because it is INCREDIBLY dynamic. Just explosive. OTOH I had trouble integrating R series with my tube music-only system. (Cheaper subs work good in HT too, IMHO.)
I don't think T is focused on HT or music per se, just trying to serve both audiences (it is downward firing with side passive, if I recall.).
From what I understand, downward is better for integration with music, side firing for HT when it comes to REL subs.
Never heard B series alas. Seems like there is a definite nod to both music and HT there. Seems like REL considers the expensive S models to be their flagship for music though.
Single versus double? Single will probably go deeper and have more control and nuance, for the same $$$. Double will fill in the inevitable gaps in frequency due to room resonances if you place them right. Very hard to choose. I'd lean towards single myself but VERY personal preference.
Art
The T series are working VERY well for me in two secondary music systems that have small main speakers. The T series take small systems that would otherwise sound lean, and flesh them out extremely well. Integrates very well with the music, perhaps not quite on a par with the S. Home run overall.
As for HT, I prefer R series, because it is INCREDIBLY dynamic. Just explosive. OTOH I had trouble integrating R series with my tube music-only system. (Cheaper subs work good in HT too, IMHO.)
I don't think T is focused on HT or music per se, just trying to serve both audiences (it is downward firing with side passive, if I recall.).
From what I understand, downward is better for integration with music, side firing for HT when it comes to REL subs.
Never heard B series alas. Seems like there is a definite nod to both music and HT there. Seems like REL considers the expensive S models to be their flagship for music though.
Single versus double? Single will probably go deeper and have more control and nuance, for the same $$$. Double will fill in the inevitable gaps in frequency due to room resonances if you place them right. Very hard to choose. I'd lean towards single myself but VERY personal preference.
Art