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General speaker questions for audio and home theater.

RE: Shouldn't 50 watts be enough for any speaker?

The problem isn't average loudness. A few watts will drive an 85dB speaker loud on average. It's the sudden short musical peaks for one thing since some of them can be 30 dB(depends on your kind of music, some isn't dynamic) and then 50 watts will clip and the peaks won't be clean. In addition some amps recover faster from clipping than others. The slow recoverers will keep distorting a short time after the peak is gone.

And then there's how well an amp handles bad speaker loads, low impedance with high reactance. Some amps don't like these loads and can't deliver full power into them, some times lots less power than they will put into a nice, test resistor load. Then your 50 watt amp isn't a 50 watt amp any more.

So it depends. A good 50 watter into a nice load will be fine. You need to investigate and better test listen the amp/speaker with your most dynamic music.


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