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11-03-2005, 08:28 AM
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#1 of 36 
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Member
Join Date: Nov 2002
Local Time: 11:04 PM
Local Date: 10-13-2008
Posts: 482
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New sub technology from Eminent... 1Hz??
I did a few searches, and didn't see anything posted about this yet. It looks like Eminent has taken a different approach to reproducing the really low end (1Hz - 30Hz) with a rotary woofer. Of course, it's a little pricey at about $13,000, and requires an IB setup, but if you really want that last bit of elusive bass..... 
http://www.eminent-tech.com/RWbrochure.htm
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11-03-2005, 11:26 AM
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#2 of 36
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Member
Join Date: Jan 2001
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Local Date: 10-13-2008
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I sat in a demo for this product at the Rocky Mountain Audio Fest in Denver in late September. It has to be heard (or felt) to be believed.
I'm unsure how practical it is, though. In the demo, which was in a hotel suite, the sub was in another room in the suite, the walls of which were covered with some type of sound absorbing material. From the room we were in, it was plenty loud. I just couldn't help wondering if a they could make a viable consumer product out of it. I won't be looking to replace my SVS any time soon.
In my experience at the demo, the tones the demonstrator (who was one of the inventors) played below 16Hz were inaudible, and it sounded (as it should, I suppose) like a helicopter...with pulses of air shaking the walls. The door to the room shook and visible moved, as much as a half inch. One thing's for sure, at 4Hz, I wouldn't be able to stand too much of it. You could feel the pressure in the room. It was pretty amazing.
Anyone out there got one of these things?
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11-03-2005, 01:20 PM
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#3 of 36
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Member
Join Date: Mar 2005
Local Time: 09:04 PM
Local Date: 10-13-2008
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I saw it on slashdot today and thought it was a joke untill I looked into it more.
Jacob
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11-03-2005, 04:30 PM
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#4 of 36
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Join Date: Jul 1999
Local Time: 03:04 AM
Local Date: 10-14-2008
Posts: 3,320
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The designer of the rotary vane transducer, Bruce Thigpen, did not make this to replace anything that SVS makes. This is an add-on to a very high end system that already has highly powerful subwoofers. It will cover the 5-12 Hz region where most subs are mere ghosts.
The problem with this initial offering is that Bruce has limited the output to 110 db. He can bring to market a more powerfull model that is designed for 120 db.
Since these are virtually handmade, and Bruce is trying to recover his development costs, the price is rather steep.
There is nothing that I am aware of that can compete with this product.
Please remember, the high end on this is 30Hz. This is not a subwoofer. But for the well heeled who are willing to make the necessary in-basement type installation and probably reinforce parts of the listening room, this thing is an absolute monster.
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11-03-2005, 11:36 PM
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#5 of 36
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Join Date: May 2005
Local Time: 10:04 PM
Local Date: 10-13-2008
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Absolutely ridiculous! Who needs this? C'mon, my puny 25-31PCi shakes the windows in my den. That kind of air pressure would surely pop the screws in my drywall.
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11-04-2005, 09:44 AM
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#6 of 36
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Join Date: Jul 1999
Local Time: 03:04 AM
Local Date: 10-14-2008
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John_Ro
If you look at the "waterfall charts" thread you will see subsonic content on any number of DVDs.
Your 25-31PCi are tuned to 25 Hz. While that will cover the great majority of low bass. The Model 17 is for another audience entirely. For example, those who have dual PB-12 Ultras might consider adding the Model 17 to cover the 5-16 Hz range where the SVS is pretty much a ghost.
There are people who have the money and other resources to add such a product. The market for this product is small and rich.
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11-04-2005, 05:36 PM
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#7 of 36
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Join Date: Jan 2004
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There's lots of talk about this unit, but I don't think anyone's actually listened to this with any sort of media; only sine waves. This is purely conceptual at this point, is it not?
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11-04-2005, 05:56 PM
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#8 of 36
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Join Date: Jun 2001
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Posts: 1,282
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11-04-2005, 07:02 PM
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#9 of 36
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Wow! You can talk about the superfan that shakes your HT at 1Hz, but then you see the picture and its almost tiny. It looks like a $20 Wal*Mart fan with a big motor. Absolutley amazing.
"Did you know that more people are murdered at 92 degrees Fahrenheit than any other temperature? I read an article once. Lower temperatures, people are easy-going, over 92 and it's too hot to move, but just 92, people get irritable."
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11-04-2005, 07:17 PM
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#10 of 36
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Join Date: Jun 2001
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Except it is engineered similar to that of a state-of-the-art helicopter. I can understand why this costs over $12,000.
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