Originally Posted by Carneiro
Hi, and thanks for the response. The amp says it will output 100 Watts @ 4 ohms. (I guess that would work out to 33 watts per speaker.) Based on that, I'm assuming there's no reason I should be worried, especially at modest volumes. Please let me know if I'm wrong.
Ah it's not quite as simple as that, but modest volumes never cause problems (unless there's like miswiring or something).
Here are "Head_Unit’s Rules Of Protection" yeah kinda overkill to your question but here goes:
1) If when things start to sound distorted or odd you TURN IT DOWN, you are unlikely to ever break anything.
2) If you constantly "turn it up to 11"
you will break something.
3) The amp and speaker power ratings do not matter. Don’t bother “matching” the amp and speaker power. That is a seemingly sensible yet actually meaningless exercise, because:
- Speaker specifications are 92% useless (and I say that as a loudspeaker engineer).
- Specs for amps are not thorough since they are measured into resistors for pragmatic reasons and speakers are not resistors at all.
- You are less likely to damage speakers with a big amp, since let’s face it everyone cranks it up sometime, and a small cheap amp is then more likely to clip and possibly put out DC and ultrasonics. (This assumes the speakers are not tiny little pieces of poop)
- Amps' 4 ohm or even 2 ohm rating is the most meaningful even if your speakers are 8 ohms. Should be 20-20k Hz, distortion under 1% or it's baloney.
- For amps "more" power means (IF specs are comparable) at least three times as much due to the logarithmic nature of hearing.