A Common Misconception
“If I use too big a power amp, I'll blow my speakers." Most high quality loudspeakers are capable of handling lots of power and employ special protective circuitry in their crossover networks. While it is possible to "blow" a low-quality speaker by severely overpowering it, the most common speaker failure is due to driving an underpowered amplifier into clipping distortion. This type of distortion causes loudspeakers to pop and overheat.
So how much power do I need?
As a general rule, you can't have too much amplifier power. For typical systems that include two speakers and an amplifier, you should be looking at how much power the amplifier is rated for per channel at 8 ohms. Look for a power rating that is greater than 50% higher than your loudspeaker's RMS power rating.
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