Quote:
Originally Posted by eddyhartley
Amplifiers work on for Min. and Max. frequency RMS is average of square root of all the frequency within in that range. Totally agree with CWIweldace you woofer's power rating must be a bit more than speakers.
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Not frequency. Amplitude. BIG difference.
Quote:
Originally Posted by 2010camarolt
okay now things make a little more sense. How do i know if the amp is certified
also whats the difference between a mono amp,a 2 channel amp and a class d amp?
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A mono amp would be what you would use for a sub, since you don't want stereo output from it in the first place. It will typically perform better than a regular system amp for your sub.
2 channel just means stereo. That's the kind of amp to use to drive your other speakers. Your car already has one of these but it could be upgraded, but I wouldn't recommend that unless you were also upgrading your speakers.
Class D type amps are the most efficient kind of amp. You probably want to go for what is often termed "Class D monoblock" for your sub(s), as it's a high efficiency mono amp that will supply the best power and signal to your sub(s).
It's generally best to buy an amp with 15-30% more power capabilities than your subs will ever require. This means finding out the peak power from the amp and subs. This way, the amp will always be able to supply enough power to the subs at all times without overdriving the amp, which will cause it to overheat and possibly take damage.
By that same token, turning up the gain on the amp has the effect of widening the difference between the peaks and valleys in the waveform, and if that becomes greater than the sub's ability to move, you can damage the subs by causing the driver to be either fully extended or fully retracted for fractions of a second, which is bad for it and is the cause for audible distortion as the sound wave clips and no audio is produced. Basically, if you turn it up too much, you can blow your sub. But the same thing can happen from an underpowered amp as well since you are overdriving the amp, and the sound will clip. Stay within the power range and you'll be fine.
Hope this helps. Sorry it's lengthy.
