Sub Question. One higher quality sub or two lesser quality? (Rythmik vs HSU)

@onhwy61 - Have built OB subs? HAve you used the GR Research servo amp and drivers in a project?


@mijostyn - you and I have mixed interactions, I probably misunderstood the very first question you asked me and the rest was, well...awkward.
I do have questions regarding your post on the previous page, as I am actually like the OP ozzy62, trying to research on this very topic.

HSU all the way. 2 of those tuned properly will be unbeatable for the price. 

definitely one sub of higher quality is any day better than two of lower quality.
in subwoofer more than sheer SPL , integration and matching to the main speaker is a far more important criteria.if you get a better sub the chances  and probability of a seamless integration are far higher

Mark

The speakers have great bass on their own. The room is 25 x 15. I am just looking for those lower octaves. The cornwalls are NOT bass shy.

I ordered the Hsu VTF-15 II yesterday. Thanks for all the input from everyone.

Oz

At this point it's moot, but do Klipschorns go lower than the Cornwalls.  If so, get a pair of of the corner horns and only run the woofer sections.  This setup would provide excellent matching of dynamics, speed and timbre.