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Car subs vs. Pro subs?
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creyc View Drop Down
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Points: 30 		Post Options Post Options   Thanks (0) Thanks(0)   Quote creyc Quote  Post ReplyReply Direct Link To This Post Topic: Car subs vs. Pro subs?
    Posted: 07 September 2006 at 11:21am
I don't quite understand what makes a professional subwoofer more desirable than a long excursion, high power handling car subwoofer. Many car subs have very long peak-to-peak excursion ratings, some with 32mm in each direction! Power handling is comparable, and at 4 ohms there is seldom an electrical difference to worry about here.

So from a technical point of view, what defines a pro sub?
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tb_mike View Drop Down
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Lesson #1 : You dont get something for nothing. Car audio subs only seem impressive because of the boomy car giving cabin gain. If you put a little 12" car sub tuned low, in a massive room,it will make only very low SPL.

Ever seen an efficient,high excursion,high power driver? Nope.
 
 


Edited by tb_mike - 07 September 2006 at 12:12pm
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Elliot Thompson View Drop Down
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Points: 5175 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Elliot Thompson Quote  Post ReplyReply Direct Link To This Post Posted: 07 September 2006 at 7:55pm
And lets not forget impedance.

Car Woofers nominal impedance differs greatly from Pro Audio Woofers.

Best Regards,
Elliot Thompson
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Tom Umney View Drop Down
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Points: 4954 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Tom Umney Quote  Post ReplyReply Direct Link To This Post Posted: 11 September 2006 at 7:27pm
And also most car subs have voice coils under 3 inch and a wimpy magnet[ low-very low bl]. And a lot of car subs have false readings on them. Like 800w max power, could be 200w rms.
 
 
 
 
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DJ Coupé View Drop Down
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Theres a huge difference car subs are specifically made to be mounted in the boot of your motor and left there, Now consider the size of a sports hall then consider the size of your car a car speaker will not hold its own in a sports hall even if it is rated at 800w. Maybe you should compare a 12" jbl car speaker with the jbl 2206 12" pro driver, frequencies and all you my understand that way.
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Tom Umney View Drop Down
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Points: 4954 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Tom Umney Quote  Post ReplyReply Direct Link To This Post Posted: 15 September 2006 at 8:27am
Yeah and most car speakers are rated at such a low sensitivity. It would be possible to use them in certain pa cabs but you'd need much more extra power to get the same volume as higher sensitivity speakers.Vus more money spent on higher wattage amps.
 
And then again most car subs ain't suited to many enclosures. And when you do find a decent car sub its usually very expensive, even more than pa drivers.
 
So at the end of the day,don't bother using car subs for pa.
 
 
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Xmax extreme View Drop Down
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any exceptions for this driver compare to other car subs? any chance for PA,?
 
 
 
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tb_mike View Drop Down
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Originally posted by Xmax extreme Xmax extreme wrote:

any exceptions for this driver compare to other car subs? any chance for PA,?
 
 
 
 
One of the requirements of prosound is a cabinet that doesnt require a forklift to move it.
 
It is a lemon. Its useless. It is for people who want even less fuel economy while oil prices rise
 
Forget that waste of materials. Get a PD or 18sound 21"
 
  • 23" tall
  • 369 lbs.
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    hifiger View Drop Down
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    Points: 82     		Post Options Post Options   Thanks (0) Thanks(0)   Quote hifiger Quote  Post ReplyReply Direct Link To This Post Posted: 17 October 2006 at 7:22pm
    I dont think most car subs have the bl for bandpass or horns, but mabe ported or sealed?

    If you really want to build a system with car subs, be ready to pay a very high power bill..
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