pa speakers in my car

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percenter

Member - Posts: 4

Joined: July 20, 2007

Location: United States

Posted: July 20, 2007 at 2:45 PM / IP Logged

Whats up guys. I've seen this alot on my trips to the Dominican Republic. More specifically EV pa speakers. Ive seen them in cars, suv's and trucks. The guys down there shoot for very loud systems as loud as they can get them. I want to try something like that. I've got 2 pa speakers lying around and im going to put them in my car . if it works out i'll leave them in if not i'll take them out. These are the specs:

(2) 15" 100-3000hz 325rms 8 ohm.*( i will have to balance these out with 4 tweeters)

(1)Rockford p600 bridged at 600x1 at 4 ohm (birth certificate says more)

I will parallel. i got to see how im going to install these monsters lol (in a honda) . Is there anything else i should be concerned about?

"It's not what you do, it's how you do it".

tubbs04

Copper - Posts: 212

Joined: March 31, 2007

Location: United States

Posted: July 20, 2007 at 4:23 PM / IP Logged

do you plan to post pics? I'm curious to see how it comes out

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kfr01

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Joined: April 30, 2003

Posted: July 21, 2007 at 11:09 AM / IP Logged

Technically, they'll work fine. Practically, you might be disappointed. First, PA speakers generally aren't tuned for low bass. So, while you might have some serious efficiency at 70-200hz going with PA speakers, they might not provide the "car audio bass" you're looking for. Second, PA speakers are generally not designed for small box designs in mind. So, you might end up taking up much more of your car's interior than you would with a proper car audio subwoofer. Just be sure to model a box with whatever speaker modeling program everyone's using these days.

Let us know how it works. Cheers,

Karl

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DYohn

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Joined: April 22, 2003

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Posted: July 21, 2007 at 12:48 PM / IP Logged

Ditto to what Karl said. For example, the EV DL15X woofer likes a 5 cuft vented enclosure tuned to 38Hz. In addition, most professional drivers are designed for use in "long throw" systems, meaning they develop max SPL outside the near field. Since inside a car is always IN the near field of a speaker, you could be much louder 10 feet away from your car than you might be inside. Of course if this is what you want, pro loudspeakers tend to be pretty efficient...

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percenter

Member - Posts: 4

Joined: July 20, 2007

Location: United States

Posted: July 21, 2007 at 3:13 PM / IP Logged

The speakers are actually 30-4000hz

I'm shooting for 6 cu ft for both speaker's and and a large slot

My expectations are low. I looking to mount these behind the rear seats. to be used only when the seats are down, or in the trunk facing out only to be used when the trunk is open. i havent started yet but i am looking to take some pics. keep ya posted.

"It's not what you do, it's how you do it".

percenter

Member - Posts: 4

Joined: July 20, 2007

Location: United States

Posted: July 24, 2007 at 10:22 AM / IP Logged

okay after taking measurements. ive decided to only use 1 of these big speakers in a enclosures i'll will use it with 2 tweeters. I now have the material but have yet to start to build the box

"It's not what you do, it's how you do it".

percenter

Member - Posts: 4

Joined: July 20, 2007

Location: United States

Posted: August 08, 2007 at 4:52 PM / IP Logged

well after having everything in my possesion i changed my mind again and decided to squeeze both 15's behind the rear seats. ive built a sealed wedge enclosure. They barely fit. I have put it in the car and it is loud as hell. Definately not the ground shaking bass (40hz)but that wasn't what i was looking for(i'll prob. hp at 80-120hz. final installation and adj. of crossover is not done yet. i will post pics as soon as i can get a hold of a camara

"It's not what you do, it's how you do it".

gus1

Gold - Posts: 1,013

Joined: October 15, 2003

Location: Canada

Posted: August 09, 2007 at 11:04 PM / IP Logged

Ahhhh... its 1985 all over again.........

Before the advent of large diameter, car specific subs, it was very common to see 15" EV or JBL drivers used in a lot of vehicles. Nowdays, with the cost of both power (cheap), and really solid woofers meant for in car use ( as in they take at the very most 2 cu ft, and just wail), aside from being a nice exercise in carpentry and bonus showoff points, really, kinda pointless.

In the Dominican...... well, they are just using what is cheap and easily available....... good on 'em for making the best out of what they have at their disposal down there.

Wherever I go, that is where I end up......

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pa speakers in my car

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