Hopelessly confused on Subwoof'ing - AVS Forum
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post #1 of 13 Old 01-04-2014, 06:51 PM - Thread Starter
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So I've read countless threads here in the Sub forum ... High End Subs, Budget Subs, Mid-range subs all have good points and bad points ... There's a lot of brand loyalty as well as some collective brand hating ... I understand it all .. What I've missed I guess is how to compare Subs well ... A friend has told me for a long time that the best subs have a low freq range, while I've read elsewhere in the forum that even though it states the range is 18-150, a lot of brands over-exaggerate and the "real" range is more mid-20's - 150 ...

A lot of the recommendations out there seem suggest subs that don't have a very low freq range, which puzzles me... I'm not so much looking for "buy this sub" - plenty of threads already out there ... But what is the importance of spec'ing a freq range when it doesn't seem to matter for some ?

I don't have a set budget so that's not holding me back - I'm not going to spend thousands but I'm not gonna jump on something either for its low price. Just looking for a better way to compare all these options that people say are so good when their spec's hardly have much common.

Thanks for the response.
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post #2 of 13 Old 01-04-2014, 06:53 PM
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IMO: Flat frequency response, plenty of clean output, sub-20Hz extension, good warranty. Built-in configurability (ports for tuning; amp with PEQ, etc.) is a bonus.

See data-bass.com for an idea of what good subs (like the Rythmik FV15HP) look like.


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post #3 of 13 Old 01-04-2014, 09:48 PM
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Quote:
Originally Posted by eljaycanuck View Post

See data-bass.com for an idea of what good subs (like the Rythmik FV15HP) look like.
Agreed.
Also in general multiple subs are better than one for minimising room mode effects, and with few exceptions, DIY generally gets you much more for the $ and subs are far and away the easiest speakers to design/build.
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post #4 of 13 Old 01-05-2014, 01:42 AM
 
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Quote:
Originally Posted by afviolettes View Post

What I've missed I guess is how to compare Subs well .

Check out the first couple of posts in the ULF thread.

Pick a number and buy from there.

...wink.gif

Quality "IS" going cost you thousands. The less one is ready to spend, the more the individual is going have to compromise. Again, allow me to quote the above, "Pick a number and buy from there."

Another website to checkout, "Data-Bass."

Despite what you've come to believe, specification do have everything in common. It's just a matter of learning what all the numbers are telling you.

What neophytes don't realize, buying subwoofers is an emotionally based issue that revolves around money. Most neophytes are hoping to buy a $6k system for five hundred dollars and don't realize, that's what they're trying to do. As an example, a $2,600.00 subwoofer system, is a compromise on many levels. A buyer's level of compromise starts to level off around $6,000.00 to $9,000.00 US dollars.

The above are the cold hard facts.

-
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post #5 of 13 Old 01-05-2014, 05:59 AM
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^ You also should consider room size in that equation. 2600.00 worth of subwoofage in a small room can perform as well if not better then 6000.00 worth of subwoofage in a large room.
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post #6 of 13 Old 01-05-2014, 06:00 AM
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Quote:
Originally Posted by BeeMan458 View Post

Despite what you've come to believe, specification do have everything in common. It's just a matter of learning what all the numbers are telling you.

What neophytes don't realize, buying subwoofers is an emotionally based issue that revolves around money. Most neophytes are hoping to buy a $6k system for five hundred dollars and don't realize, that's what they're trying to do. As an example, a $2,600.00 subwoofer system, is a compromise on many levels. A buyer's level of compromise starts to level off around $6,000.00 to $9,000.00 US dollars.

The above are the cold hard facts.

-

Lol, give me a break. None of that is fact, that is all opinion. A lot of people are perfectly happy with their $200 subs and wouldn't want nor could even use any more bass than that. Other people spend tens of thousands and still don't get the effect they desire. There are no hard rules about someone getting the bass they want.
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post #7 of 13 Old 01-05-2014, 06:10 AM
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Shady have you ever heard a ULS15 in person?


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post #8 of 13 Old 01-05-2014, 06:24 AM
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Originally Posted by BeeMan458 View Post


Another website to checkout, "Data-Bass."

-


That's where I learned much of the factual information about subs. Invaluable site. The others were by an excellent couple of posts on another forum by Big Daddy and the DIY forum here (although sometimes I still don't know what a few of those guys are talking about). As somewhat of a newcomer to subwoofers (although I've owned one since 1984, I never got into the technicalities), I only listened to recommendations to discover the available subwoofers or for measurements. I rounded off my education by reading Bill Fitzmaurice's posts and the Harman Karden white paper.
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post #9 of 13 Old 01-05-2014, 06:29 AM
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Originally Posted by bear123 View Post

Shady have you ever heard a ULS15 in person?

Bear: yes I have, quite a bit.
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post #10 of 13 Old 01-05-2014, 06:57 AM
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I understand you have a vtf3?  How would you compare the two?


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post #11 of 13 Old 01-05-2014, 07:52 AM
 
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Quote:
Originally Posted by basshead81 View Post

^ You also should consider room size in that equation. 2600.00 worth of subwoofage in a small room can perform as well if not better then 6000.00 worth of subwoofage in a large room.

Agreed. I failed to make the point that it's the same person wanting to fill the same room with subwoofer related sound.
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post #12 of 13 Old 01-05-2014, 08:03 AM
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Quote:
Originally Posted by bear123 View Post

I understand you have a vtf3?  How would you compare the two?

The ULS is cleaner. The driver is so much better, so it does not stress as much to achieve the same output levels. The VTF3 does have a low bass advantage though. If you try to push the ULS to the deep bass output of a large ported sub, it will bottom out. That is my only criticism of the ULS. If had to choose between the two, I would go with a ULS. Note my VTF3s are mk 3s, not mk4s, but I would expect mk4s to compare about the same.
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post #13 of 13 Old 01-05-2014, 08:46 AM
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The ULS is bassicly two SB12-NSD’s in one, same amp features. It might be more or less than that under 20hz I dunno??

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