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Old 06-21-2007, 12:55 PM   #1 (permalink)
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speaker watt question

so, im a COMPLETE newb when it comes to speakers and such

the headunit i got puts out 52watts to 4 speakers

the speakers i got are 40watts 190watts peak power

will i need to change settings on my headunit so it doesn't blow my speakers? or just put stuff to reduce the wattage in the lines?

thanks for any help[
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Old 06-21-2007, 01:52 PM   #2 (permalink)
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You won't be able to blow those speakers with your headunit. Turning up the volume high will actually do damage to the headunit more than the speakers. Since the speakers are designed to take a maximum of 190watts, but the headunit can only put out 54, the speaker will start trying to pull more power than the headunit can supply, which leads to clipping (which basically means the music will start to sound crappy). So long as you dont turn the volume up to a level where it distorts, you should be fine.
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Old 06-21-2007, 03:03 PM   #3 (permalink)
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You guys are looking at the WRONG ratings.

Pay no attention to what Sony rates them at, RMS ratings are what you should be looking for to get a more realistic idea of how much power it puts out or handles.
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Old 06-22-2007, 06:32 AM   #4 (permalink)
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With car audio, the peak rating is exactly that...either what it can put out or what a speaker can handle. Especially with Sony, it will not sound good anywhere near the peak rating. He was just asking about whether he is going to blow his speakers with that headunit.

Considering this is Sony equipment it probably won't even sound good at around the RMS output of the headunit, which is the amount of power the headunit can deliver on a continuous basis. whatproblems: this basically means that your headunit can sent out around 20 watts to each speaker constantly, with extremely short bursts of up to 52watts. If you try to send even 21 watts constantly, it will overload the amplifier built into the headunit.
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Old 06-22-2007, 10:04 AM   #5 (permalink)
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Quote:
Originally Posted by gideon1331
With car audio, the peak rating is exactly that...either what it can put out or what a speaker can handle. Especially with Sony, it will not sound good anywhere near the peak rating. He was just asking about whether he is going to blow his speakers with that headunit.
I think you are referring to the other thread in the Corolla forum in which the OP has cross-posted to. The peak rating is not a realistic representation of the actual power handling capability of the speakers. It is rated at that wattage for probably 1 or 2 seconds before blowing them up. Take P.M.P.O./peak ratings with a grain of salt.

Quote:
Originally Posted by gideon1331
whatproblems: this basically means that your headunit can sent out around 20 watts to each speaker constantly, with extremely short bursts of up to 52watts. If you try to send even 21 watts constantly, it will overload the amplifier built into the headunit.
That headunit only puts out 17w RMS http://www.crutchfield.com/S-d4hlZhe...158GT610UI#Tab

Speakers: Rated at up to 40 watts, on the lower end of the spectrum.

Not very likely that speaker blowout will occur considering the differences in power ratings.

But then again, this is Sony equipment we're talking about, so anything can happen
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