Nothing is worse than a really crappy sub. I would hold out and get the HSU VFT-2. It really is a nice subwoofer, and will lighten the load on the rest of your system.
Your speakers are not flat to 30 regardless of what the specs say. I know "full range" 10k speakers that are not flat to 30. This sub won't be flat to 30, just a whole lot closer, while letting the receiver and speakers do what they can above 80. In the end your room probably won't allow for these flat responses.
You should be able to find a VFT-2 for very close $300. Anything over $350 is a joke for a used VTF-2.
Marty
Your speakers are not flat to 30 regardless of what the specs say. I know "full range" 10k speakers that are not flat to 30. This sub won't be flat to 30, just a whole lot closer, while letting the receiver and speakers do what they can above 80. In the end your room probably won't allow for these flat responses.
You should be able to find a VFT-2 for very close $300. Anything over $350 is a joke for a used VTF-2.
Marty