Besides listening, hows does one objectively choose a sub. Listening in a store is a waste of time because the the geometry of the room, and the furniture and window treatments are located and placed different than yours. I would guess that you have to take the sub home, and play with it for weeks before you determine it was the 'right one'. And with each one you choose, you are going to have to set the volume on your amp/receiver so that they are identical. Any way out of this mess (or fun)?
And then, you may not have access to the sub you want.
I think you have to buy it, set it up, and if it doesn't sound right, send it back. This can be an expensive proposition, because you are responsible for transportation costs.
