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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
bob540 OP
407 posts
 
I see they are cylinders.  So all the music is from down-firing speaker rather than from the sides?  Or does sound emanate from the sides and bottom.  I suppose I would need to get a separate amplifier to power them . . . or could my Parasound amp power them?   
wspohn's avatar
wspohn
598 posts
 
IMHO the best subs they make are the  VTF-15H MK2.

You really need two, located properly in the room, but they mate better than any other model I was able to audition.
bdp24's avatar
bdp24
9,727 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. 
noble100's avatar
noble100
2,419 posts
 
bdp24:" 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."

Hello bdp24,

     It seems like you're not aware that Bob is using his stereo Parasound A21 amp to power his ML 60XT main speakers.  He can't use this same amp to drive a pair of passive subs, he'd need another separate amp to power a pair of passive subs.  Or, he could use a pair of traditional self-amplified subs.

Tim  
bdp24's avatar
bdp24
9,727 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 ;-) .
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