New Hsu Sub Flat To 10Hz!!! - Page 68 - AVS Forum
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post #2011 of 2029 Old 08-23-2008, 10:02 AM
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I certainly agree.
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post #2012 of 2029 Old 08-23-2008, 10:06 AM
 
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Quote:
Originally Posted by Waffles View Post

Ok, I'm thinking about cancelling my order on my Elemental Designs A7-900 (435lbs) and going with dual ULS-15's. Would this be a good move providing each can hit the 10Hz range? The A7-900 is packed with a 1300 Watt amp each ULS-15 is packed with a 1000 Watt amp and includes the wireless function. I'm still on the fence about this and I would pay a $60 canceling fee.

You are in the unfortunate position that you cannot do a side by side of these 2 subwoofer choices.

On the other hand, having the financial ability to afford EITHER means life is pretty good.

Your room is not too large - 2160 cubic feet should not be a problem for either choice.

The eD will be quite a bit more powerful, while the Hsu is a more elegant package.

Tough Call.
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post #2013 of 2029 Old 08-23-2008, 02:32 PM
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Quote:
Originally Posted by Raymond Leggs View Post

If a sub can be flat to 10hz will it go down to 5Hz? some popular dance music is known to go down to 5Hz.

You do realize that you are talking about AN ENTIRE OCTAVE lower?

That would be like saying a sub goes flat to 40hz so it will still go down to 20Hz.

Sure it will, but how loud?

What would be some examples of dance music that has 5 Hz content?

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post #2014 of 2029 Old 08-23-2008, 03:21 PM
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Quote:


Ok, I'm thinking about cancelling my order on my Elemental Designs A7-900 (435lbs) and going with dual ULS-15's. Would this be a good move

Ignoring the $$$, definitely two ULS-15 would be great in a room of your size. Im a big believer that multiple subs are better then one subs even if the output of one subs is greater.....there are other factors that matter.

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post #2015 of 2029 Old 08-23-2008, 10:18 PM
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Quote:
Originally Posted by Waffles View Post

Ok, I'm thinking about cancelling my order on my Elemental Designs A7-900 (435lbs) and going with dual ULS-15's. Would this be a good move providing each can hit the 10Hz range? The A7-900 is packed with a 1300 Watt amp each ULS-15 is packed with a 1000 Watt amp and includes the wireless function. I'm still on the fence about this and I would pay a $60 canceling fee.


you cant really look at the amp and compare these two subwoofers. They might be pretty close above 30Hz, but there is going to be a gigantic advantage to the ported subwoofer when it approaches resonance, i mean gigantic, that ed is very efficient and making SPL from its port, its probably comparable to 4 sealed 18's if not more right at resonance.

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post #2016 of 2029 Old 08-23-2008, 10:22 PM
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Quote:
Originally Posted by cschang View Post

One thing that Mike didn't mention, but I am sure he would agree with is that using multiple subs will help even out the overall bass response in a room.

this is true, room treatment is actually a vital component to sound quality. the best subwoofer in the world can still sound horrible in a bad room. Fiberglass or dampeners in the corners of the room can help a lot.

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post #2017 of 2029 Old 08-23-2008, 10:23 PM
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Quote:
Originally Posted by Ivan Beaver View Post

You do realize that you are talking about AN ENTIRE OCTAVE lower?

That would be like saying a sub goes flat to 40hz so it will still go down to 20Hz.

Sure it will, but how loud?

What would be some examples of dance music that has 5 Hz content?

if a tweeter is flat to 20k will it go to 40k


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post #2018 of 2029 Old 08-23-2008, 11:39 PM
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Quote:
Originally Posted by craigsub View Post

You are in the unfortunate position that you cannot do a side by side of these 2 subwoofer choices.

On the other hand, having the financial ability to afford EITHER means life is pretty good.

Your room is not too large - 2160 cubic feet should not be a problem for either choice.

The eD will be quite a bit more powerful, while the Hsu is a more elegant package.

Tough Call.

Very good points. Will you be reviewing the ULS-15 anytime soon? I'm thinking your review would help out which is the reason I went with the A7-900

Keep them reviews coming Craig as you can see, you have made choosing the right sub much more easier on us less knowledgeable subwoofer savvy consumers.
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post #2019 of 2029 Old 08-24-2008, 09:36 AM
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I said before the JL F112 did not shake my windows at 10hz like the ULS-15. Well, I just did some testing and it can. I just had to turn the volume up much higher. Obviously this is because the JL has a high pass filter that rolls off the really deep bass.
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post #2020 of 2029 Old 08-24-2008, 05:47 PM
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115db @ 5Hz is ideal.

One shall stand... One Shall Fall... - Optimus Prime
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post #2021 of 2029 Old 08-25-2008, 06:06 PM
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I have a question and I guess it may show my inexperience. I have an epik valor, also a 15" sealed sub, and it has more overall internal area than the ULS I believe. I am assuming this due to the fact that above and below the driver there is a good 5 inches of space while the ULS is pretty flush to the driver. However, the valor only goes to 18hz. Since there is more liters of cubic area inside my valor, how is this possible for the ULS to go almost an entire octave lower?

And Craig, thanks again for all your help in the past.
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post #2022 of 2029 Old 08-25-2008, 06:13 PM
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Quote:
Originally Posted by neumei626 View Post

I have a question and I guess it may show my inexperience. I have an epik valor, also a 15" sealed sub, and it has more overall internal area than the ULS I believe. I am assuming this due to the fact that above and below the driver there is a good 5 inches of space while the ULS is pretty flush to the driver. However, the valor only goes to 18hz. Since there is more liters of cubic area inside my valor, how is this possible for the ULS to go almost an entire octave lower?

And Craig, thanks again for all your help in the past.

The ULS is using gobs and gobs of very low frequency eq to counter the low frequency rolloff.
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post #2023 of 2029 Old 08-25-2008, 06:19 PM
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Quote:
Originally Posted by mojomike View Post

The ULS is using gobs and gobs of very low frequency eq to counter the low frequency rolloff.

Ahhh, I see. I knew that with ported subs the manufacturer can customize what frequency to tune the port to, so that is why i was confused as to how they did it with this sealed sub. Thanks.
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post #2024 of 2029 Old 08-25-2008, 06:27 PM
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You should be able to eq your Valor to play lower frequencies with the use of the proper sort of equalizer. The eD eq can do the trick. This of course comes at the expense of lowering headroom and increasing distortion when played at louder volume.
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post #2025 of 2029 Old 08-25-2008, 06:30 PM
 
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Quote:
Originally Posted by mojomike View Post

The ULS is using gobs and gobs of very low frequency eq to counter the low frequency rolloff.

Gobs and Gobs is the technical phrase, right ?
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post #2026 of 2029 Old 08-25-2008, 06:45 PM
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A gob = much more than a dollop.
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post #2027 of 2029 Old 08-25-2008, 06:57 PM
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A GOB= 10.7 scosh or 20.35 smigions

Seriously though, does "GOBS" of eq down low effect the headroom on the ULS?
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post #2028 of 2029 Old 08-25-2008, 07:02 PM
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It has to affect headroom, but should only do so when there is serious content in the area being eq'd. In other words, if the signal is mainly 40hz, the headroom shouldn't be affected. If the signal is 16hz or if it is a mixed signal over a range of frequencies from very low to higher up, there will definitely be an effect on headroom.
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post #2029 of 2029 Old 04-21-2009, 05:29 AM
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Sorry, I read 40+ pages from the beginning and then another 10 starting at the end. Did anyone ever end up generating frequency vs Group Delay numbers for the ULS-15?

There is a large contingent of 'mate a woofer to panel speakers' who would like to know the group delay numbers (since panel speakers are so fast). I now know the intimate details about various conspiracy theories about Craig and and the other person, but I don't know the data that we can find for the other subs. Did I miss the page, or have the tests not been run yet?
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