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IS THAT BAD OR WHAT IF I GO FOR 550 WATTS ON 600 PEAK ??
That would produce more heat, which shortens its life, and on a JL voids its warranty, if used outside the "green" power range. Subs has voice coil heat dissipation technologies. Depending on the brand / product line you’re using this shortened life varies. For example Pioneer Premier T-W5000SPL used in dBDrag competions (each one powered by 4 externally bridged PRS-D5000SPL amps) even endured that kind of punishments! Most other competitors tore off their dustcaps in a drag, while W5000 was up for the next challenge!
Then is the true RMS, which is far less than what they state as "CEA" rating. Example: JBL Px300.4 is 123.5W RMS "CEA-rated" per channel, while in older documents it’s stated only 75W RMS, then you see a 50W per channel Premier PRS-A900 outperforms it. That’s becasue the A900 is rated at an insane 0.003 THD!!! If Power Acoustik achieves the A900 technology, they’d be listing it as 4×200W RMS!!!
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You will probably never actually be pushing a true load of 400 if your amp is a 400. You can take it to a shop and check the wattage with a meter, or find someone who does have one.
Those JL’s can really take a lot, but over time it will wear it down.
References :
That would produce more heat, which shortens its life, and on a JL voids its warranty, if used outside the "green" power range. Subs has voice coil heat dissipation technologies. Depending on the brand / product line you’re using this shortened life varies. For example Pioneer Premier T-W5000SPL used in dBDrag competions (each one powered by 4 externally bridged PRS-D5000SPL amps) even endured that kind of punishments! Most other competitors tore off their dustcaps in a drag, while W5000 was up for the next challenge!
Then is the true RMS, which is far less than what they state as "CEA" rating. Example: JBL Px300.4 is 123.5W RMS "CEA-rated" per channel, while in older documents it’s stated only 75W RMS, then you see a 50W per channel Premier PRS-A900 outperforms it. That’s becasue the A900 is rated at an insane 0.003 THD!!! If Power Acoustik achieves the A900 technology, they’d be listing it as 4×200W RMS!!!
References :
What is the peak of your subs? ideally you could run 300 watts constantly to your 300watt RMS subs with no problems. but if your subs are for example 300watt RMS, 500watt Max, then you should have a no more than 500watt max amp, or at least be careful. If you run an amp of 600watts peak and your careful you should not see any problems, but if you pound those subs to the point of distortion on a regular basis, then you can expect to blow them.
References :
When matching your sub to an amp, just compare apples with apples and oranges with oranges. In other words, use the RMS ratings when comparing both. Would it be bad to feed 400W RMS to a 300W sub?
Yes. Try to keep the amp RMS rating to no more then 10% above the sub RMS rating.
References :
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Very informative article.