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Determining a Speaker's Power Handling

post #1 of 4
11/13/11 at 10:14am
Thread Starter 
I built some speakers a couple of years ago and am looking to get an amp to properly power them. However, I don't know how much power the speakers are rated for. The drivers were
Seas Millennium T25CF: Short Term Power - 200w Nominal Power - 90w Resistance - 6Ohm
Seas Excel W12CY: Short Term Power - 200w Nominal Power - 70w Resistance - 8Ohm
2 Dayton RS225-4: RMS Power - 80w Max Power - 120w Resistance - 4Ohm. These were run in series to get 8 Ohm.

How can I figure out the power rating of the entire speaker? It can't be as simple as adding all the RMS powers together to get 320w.

Thanks for the help.
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post #2 of 4
11/13/11 at 10:28am
Speaker power handling numbers are nearly arbitrary anyway. They really just give you a ballpark figure.

You could send the entire 3-way system a 50w sine wave and likely cook any one of those drivers after a little while…well maybe not the twin woofers… Does that mean it should have a 50w power handling label? No. It can easily be powered by a conventional AVR or by a single channel of an XPA5.

To be honest, if spending money on a Seas Millennium tweeter, I’d opt for spending a little coin on an XPA3 or 5. 200-250w will result in enough clean output.
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post #3 of 4
11/13/11 at 10:50am
Depends on xo points and box alignments.
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post #4 of 4
11/13/11 at 11:06am
Thread Starter 
Quote:
Originally Posted by Looneybomber View Post

Speaker power handling numbers are nearly arbitrary anyway. They really just give you a ballpark figure.

You could send the entire 3-way system a 50w sine wave and likely cook any one of those drivers after a little whilewell maybe not the twin woofers Does that mean it should have a 50w power handling label? No. It can easily be powered by a conventional AVR or by a single channel of an XPA5.

To be honest, if spending money on a Seas Millennium tweeter, I'd opt for spending a little coin on an XPA3 or 5. 200-250w will result in enough clean output.

Thanks for the reply. I was looking at the XPA-5 so I will just stick with that original plan.
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