18" subwoofer

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Rubycon

Madame President
Aug 10, 2005
17,768
485
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Originally posted by: Apex
Forget those sissy subwoofers.

http://www.rotarywoofer.com/

I believe the OP wanted to shoot it across the floor not chop it up. :laugh:

It would be neat to see a larger rotary though - something 60" in diameter or bigger.

Perhaps we should be more worried about the OP instead. :Q
 

Howard

Lifer
Oct 14, 1999
47,982
11
81
Originally posted by: Tiamat
Originally posted by: Howard
*cough*bullshit*cough*

?? Correct me please? I'm definitely willing to learn.
Subjectively its better than the Velodyne DD-18, objectively it is better as well
Where are the measurements?
But for sound quality, pro sound will not be better on a general scale (the typical stuff you can get for pro sound).
Why not?
 

Excelsior

Lifer
May 30, 2002
19,047
18
81
Originally posted by: Howard
TC Sounds makes a motor that can do it. The LMT. Not very efficient, though. Adire Audio's XBL^2 technology can and has been scaled up past that high. See the Parthenon.

I was gonna say that there is a good chance it is a TC Sounds driver.
 

Excelsior

Lifer
May 30, 2002
19,047
18
81
Originally posted by: Howard
Originally posted by: Tiamat
Originally posted by: Howard
*cough*bullshit*cough*

?? Correct me please? I'm definitely willing to learn.
Subjectively its better than the Velodyne DD-18, objectively it is better as well
Where are the measurements?
But for sound quality, pro sound will not be better on a general scale (the typical stuff you can get for pro sound).
Why not?

I believe there are some measurements on AVSForum.

It isn't that hard to believe really. The Vd of each:

JL F113 - 697cm^2 x 70mm (p-p xmax) = 4.790 liters

Velo DD18 - 1200cm^2 x 31.75mm (p-p xmax) = 3.81 liters.



 

Excelsior

Lifer
May 30, 2002
19,047
18
81
Originally posted by: Howard
What driver do they use in the F113?

It is a modified JL 13W7 of sorts. According to one of their employees who posts on AVS, its rated one-way xmax is ~35mm.

 

Rubycon

Madame President
Aug 10, 2005
17,768
485
126
Velodyne subs are very accurate with low distortion but do not reach stratospheric levels like a passive woofer with a large amp. It becomes apparent if you hook it up to an instrument. They have some ALC action going on and it's probably for the better since so many people run everything into clipping these days. :disgust:
 

alkemyst

No Lifer
Feb 13, 2001
83,769
19
81
Originally posted by: Minerva
Nothing is impossible if you throw enough money at it. :p

like your 13" must be car audio...it actually is.

Time travel, cold fusion, and oak island....all have had as much money as possible thrown at them.

Thanks for playing.

My Klipsch Heritage setup puts out enough subbass to shake the room just fine. My pair of Image Dynamic 10" subs are extremely accurate and shake my car too.

It's about playing not specs. I have seen quite a few highend speakers that don't do 20-20k, but still are smokingly accurate.
 

Tiamat

Lifer
Nov 25, 2003
14,068
5
71
Originally posted by: Howard
Originally posted by: Tiamat
Originally posted by: Howard
*cough*bullshit*cough*

?? Correct me please? I'm definitely willing to learn.
Subjectively its better than the Velodyne DD-18, objectively it is better as well
Where are the measurements?
But for sound quality, pro sound will not be better on a general scale (the typical stuff you can get for pro sound).
Why not?

The numbers are on AVS as well as other audio forums (i can go try to dig up links if you want). JL definitely had its roots in the car audio industry, they just happened to hit really nicely with their F112/113 series, and probably the Gotham.

The Pro sound i have experience with is the less expensive ones where spl at 40+ hz is the goal, rather than low distortion 20hz bass. Two totally different markets for sure (home vs. pro) and I did list one company that is a great example of Pro sound that is more than quality enough for home applications (Danley).
 

Rubycon

Madame President
Aug 10, 2005
17,768
485
126
Originally posted by: Tiamat

The Pro sound i have experience with is the less expensive ones where spl at 40+ hz is the goal, rather than low distortion 20hz bass. Two totally different markets for sure (home vs. pro) and I did list one company that is a great example of Pro sound that is more than quality enough for home applications (Danley).

Yes this is the case. Subwoofer use is definitely on the rise in the pro sound world though.
 

Howard

Lifer
Oct 14, 1999
47,982
11
81
Originally posted by: Tiamat
The Pro sound i have experience with is the less expensive ones where spl at 40+ hz is the goal, rather than low distortion 20hz bass. Two totally different markets for sure (home vs. pro) and I did list one company that is a great example of Pro sound that is more than quality enough for home applications (Danley).
No, you said:
But for sound quality, pro sound will not be better on a general scale (the typical stuff you can get for pro sound).
Really, it sounds like you're not talking specifically about bass whatsoever. And, good pro drivers tend to have much less distortion compared to "hi-fi" or car audio drivers, especially as you increase SPL. Nothing wrong with high SPL; if you want realism, you have to recreate the live SPLs anyway.