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Quick Car Speaker Question

post #1 of 5
Thread Starter 
Alright, So I own a 1984 Pontiac Firebird. I replaced the old radio in it with a
Sony Xplod CDX-GT920U. All the speakers are stock. And i've been thinking about buying some good speakers for it. Well my mom owns a 1999 Grand AM SE. Yesterday on her way to work, driving down the highway, the car pretty much burst into flames out of the front of it. She pulled over and jumped out of the car real quick. Long story short, the car is a total loss from the front doors and up. It is sitting in our drive way, and I decided to rip the back speakers out of it, which were unaffected, and were working fine with the radio in the car. I pulled the speakers out of my firebird to compare. They are the same size. The firebird speaker is a bit heavier, with a larger, what im guessing, magnet on the bottom of it. They are both Delco speakers. The Firebird speaker is 4 OHM, and the Grand AM 8 OHM. I could rig up the wires to use the Grand AM speakers, but what I'm wondering, is would it make any difference? I just figured it might sound better, with them being 15 years newer and all. Haha. Thanks for the help.
    
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post #2 of 5
Well running the 8 ohm speakers is going to essentially cut your power in half..
Would it work? Yes.. Would it sound okay? Probably...
But how about investing a few bucks and buying some speakers worth a damn?
post #3 of 5
All factory car speakers suck(other than the special option ones). Might sound better but not worth the trouble IMO. You can try it if you're curious.
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post #4 of 5
Quote:
Originally Posted by YourBleakFuture View Post
Alright, So I own a 1984 Pontiac Firebird. I replaced the old radio in it with a
Sony Xplod CDX-GT920U. All the speakers are stock. And i've been thinking about buying some good speakers for it. Well my mom owns a 1999 Grand AM SE. Yesterday on her way to work, driving down the highway, the car pretty much burst into flames out of the front of it. She pulled over and jumped out of the car real quick. Long story short, the car is a total loss from the front doors and up. It is sitting in our drive way, and I decided to rip the back speakers out of it, which were unaffected, and were working fine with the radio in the car. I pulled the speakers out of my firebird to compare. They are the same size. The firebird speaker is a bit heavier, with a larger, what im guessing, magnet on the bottom of it. They are both Delco speakers. The Firebird speaker is 4 OHM, and the Grand AM 8 OHM. I could rig up the wires to use the Grand AM speakers, but what I'm wondering, is would it make any difference? I just figured it might sound better, with them being 15 years newer and all. Haha. Thanks for the help.
The impedance rating on your speakers (given in ohms) is almost always the nominal impedance - which is roughly just an average. The actual impedance at any given frequency can vary greatly. A speaker might have a 3 ohm impedance at 200 Hz, but a 32 ohm impedance at 8000Hz. So the nominal rating is just an average taken over the entire frequency range of the speaker.

A lower impedance means that the speaker will call for more amps from your amplifier. This is very rough, but it is generally easier to deliver more volts and tougher to deliver more amps. o, in a general sense, it is easier to power a speaker that has higher impedance.
post #5 of 5
I wouldn't bother swapping unless you actually spend the money on some better speakers.
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