The VTF-3HO with the "turbo" attachment is looking to be a great performer, especially with using Adire's XBL^2 technology.
Folks that heard it at CES say the sound quality was exceptional. One person on AVS even compared the sound quality to one of his favorite sealed subs, but with the output of ported. Do a search, it should not be hard to find the comments.
If you could, I would wait a bit on a decision until more info on the VTF-3HO/turbo is available, it looks like they just started shipping.
Great bass isn't just loud bass.