The SW12 is excellent, if that is in your price range. It wasn't in mine.
I own the 10T's and have a Triad Platinum 18 inch sub that is used for 95% music and 5% movies in 2-channel.
As you probably know, the 10T's are excellent in the bass regions and are definitely a full range speaker.
The Triad dialed in at the lowest crossover setting, and low volume setting simply reproduces the lowest octave without problems.
I found it to be near as musical as Bag End's Infrusub 18" inch sub but the Triad has a few more dial-in capabilities.
-IMO
I own the 10T's and have a Triad Platinum 18 inch sub that is used for 95% music and 5% movies in 2-channel.
As you probably know, the 10T's are excellent in the bass regions and are definitely a full range speaker.
The Triad dialed in at the lowest crossover setting, and low volume setting simply reproduces the lowest octave without problems.
I found it to be near as musical as Bag End's Infrusub 18" inch sub but the Triad has a few more dial-in capabilities.
-IMO