Subwoofer for Reciever without Sub connections

[markw]

You're usually better using a line-level output from your reciever to the line-level inputs on the subwoofer. Often, subwoofer amps have seperate left and right channel inputs.

I prefer line level myself, but not all receivers offer this option.

As a rule of thumb, subwoofers are ill-suited to music - they're really better for home theater use.

Not true at all. It all depends on how you integrate them unto the system. If one has a pair of good speakers that only lack in the low end, by properly integrating a sub into the system to take over wherethe mains drop off can do wonders.

And, that speaker you point to as an example sure is nifty and upon first glance looks great, but you assume one has the skills an and tools required to build an enclosure.