There are lots of subs that let you know they're there every time you switch your system on. Both in looks and sound. To be frank, I laughed when I saw the size of the REL T2: "You've got to be kidding!" I was auditioning subs way bigger than this before I was introduced to the T2.
Anyhow, I borrowed a store demo T2, took it home and after what seemed like hours setting the thing up, I played some tunes - nothing really spectacular with the bass. Increasing the level didn't help that much. There was a little bit of rumble here and there - it was kind of what I expected in a little sub.
Then I played 'Battleship". All of a sudden, this really low bass came out of nowhere and rattled the windows. I thought it was a low flying F35! Actually it was....
I worked out the REL only plays bass when it's there in music or movies. It doesn't add any. That's why some REL's can sound anaemic compared with other subs. I ended up getting a good deal so I bought the REL T2. I guess some listeners want more impact all the time. Maybe Def Tech, SVS etc might be a good option.
If I had the dollars, I would purchase one of the reference series Martin Logan subs. They are awesome!