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Whatta Ya Think About Hsu Research Subwoofers?

I’m in the market to add one or possibly two subwoofers to my stereo set-up.  I would like to spend $1,000 or less per unit, and that puts some of the higher-rated units out of reach.  I came across an ad for Hsu, which I had not heard of before.  I didn’t want a Chinese product and it turns out that Hsu Research is based in California and founded by Dr. Hsu, who has a Ph.D from MIT.  Audio reviewer Steve Gutenberg gave one Hsu product a positive review.  I was wondering if any of you have experience with Hsu and could share your impressions/recommendations with me.

My existing set—up is:  Parasound P5 pre-amp with Parasound A21 amp;  Martin Logan 60XT tower loudspeakers.  Thanks!
bob540

Showing 4 responses by bdp24

bdp24's avatar
bdp24
10,110 posts
 

Bob, before pulling the trigger, look into the GR Research/Rythmik F12G Sub. Optimized for music, it employs the GR Research 12" low-mass paper-cone woofer and Rythmik Servo-Feedback system. VERY high quality music reproduction.

If you can build an enclosure, the sub is also available as DIY kit. If you can’t, GR Research has a couple of woodworkers who will make it for you, in any style you want.

bdp24's avatar
bdp24
10,110 posts
 
@noble100, So Bob thinks he can run his speakers and a pair of passive subs off the same amp at the same time?! You’re right, I wasn’t aware he was already using the Parasound on his loudspeakers. I was assuming he knew what a passive sub is ;-) .
bdp24's avatar
bdp24
10,110 posts
 
Yep Bob, the 10" woofer is down-firing, the cylindrical enclosure sitting on tall spikes which raise it off the floor. A Parasound amp will be fine with them, and as I said the subs came with a passive x/o, so no extra electronics are required. The two woofers can be replaced, or even just re-coned, which I was thinking of doing. I don't know what the price to have that done would be. 
bdp24's avatar
bdp24
10,110 posts
 
@bob540, I have a pair of the original passive (no plate amp, but a passive x/o proving low-pass filtering is included) HSU sub, the HRSW10 (Rosewood veneer). They’ve been in storage for years, and I just pulled them out of their cartons. The foam surround on the 10" woofer in each sub has disintegrated (damn California air pollution ;-), but all else is fine. HSU has replacement woofers, so if you want the HRSW10’s cheap, let me know and I’ll list them.
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