Why can't I use a car audio amp for my home speakers?
Hi,
I have heard that it is not possible to use a car audio amplifier with my home speakers. Can anyone explain to me why not? The only difference I can see is the Ohms - which is probably the whole reason but I would like to understand why specifically. Thanks!
Answer:
There are two issues that I see
1. Powering your amp
2. Driving your speakers
1. THese amps run off 12v DC, I'm not sure what sort of amperage, you shoudl look at their draw though, proably 5A+ You would need a pretty heavy duty transformer. converting 120vAC to 12vDC is no problem but a transformer that will have sufficient draw may be harder to get.
2. Your speakers are probably 8ohm. Car speakers use a different impedance, I'm nto sure what and it may vary, but if the speaker impedance does not fall within the range of the amps acceptable speaker impedance, forget it, you will blow something up.
Checking into it I think 4ohm is pretty standard for car audio. Because of the different voltage requirements of both. Hmmm, one of the first things I thought of is a power source. The amp is 12v DC, the house current is 120v AC. Maybe there is an easy workaround for that, I don't know... I can't go into the specific differences between direct current, the power your amp runs off of, and alternating current, the power in your house. But with an ac to dc inverter you certainly can run your home speakers with a car amplifier. And if you were talking about putting home speakers in your car you can do that with no problem but you probably will not get the sound you are after. well: according to "Audio sound systems" you can not
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