I believe that I've reached the decision that a sealed sub is the best choice for me. Reading the single review that the Adire site provides I see it mentions that the SE version of the Rava may be a better choice for a system like mine (5 Ascend Acoustics cbm-170's/Onkyo tx-sr700). I question if I need the extra signal processing features of the SE. I am curious if stepping up to the SE price point would bring better alternatives into the picture. $600 is the upper limit to what I am willing to spend for my first sub. I am aware of the HSU VTF-2 and that it is actually paired with the Ascends as a package. I have a preference for music listening and I feel like a sealed model will be a better choice.