Re: [Harp-L] Watts Up With That?



Like I said. Laudable goal, ain't gonna happen.


On Dec 5, 2009, at 9:14 AM, Jim Rumbaugh wrote:


I doubt if you will get a "standard" for amp watts. I went through this in the 60's and 70's with guitar amps. For example, 70 watts RMS(ROOT MEAN SQUARE) is the same as 100 watts, PEAK and is the same as 200 watts PEP (PEAK ENVELOPE POWER ). Then someone came up with a standard called Peak Music Power (w.t.f. is that??) Then you have to figure out if that's watts at how much distortion, because a square wave has more power than a sine wave. But if you list the wattage of a clean signal, how does many harp players use the amp, .... at full power, with lots of distortion, no where near a clean signal. What you probably want for a standard is peak watts before clipping, that's where the rating of watts with distortion comes in handy with "stereo amps". But since harp amps are used for sound "production" rather than reproduction, the idea of attaching a distortion number could be misleading. I do not see a simple answer.

So Rick. What "standard" would you propose to use?

Jim Rumbaugh




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