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What, if anything, does PMPO mean? If it intended to specify peak
wattage, that would only reduce the power by at most 1/2.
Otherwise it is totally meaningless and just another advertising
hype. I think my 40 year old AR1W 12 inch speakers are rated for
about 20 to 30 watts, and they are pretty low efficiency.
My recollection is 'Peak Music Power Output'.
It falls into the same category as IHFMP (Institute of High Fidelity Music
Power), 'Peak Power', 'Music Power', and other terms I don't presently
recall.
A rating of 'peak music power' can be for a time period of a fraction of a
second at one specific frequency and be perfectly legal.
One of the advertising factors which annoys me more than these ludicrous
power ratings is an RMS power rating at one frequency such as 1,000 Hz.
Yes, the device may provide 600 watts - but at 1 KHz. At the 'normal' ends
of 20 Hz and 20 KHz the device may only be able to create .5 watts RMS.
Yet, it's the 600 watt rating which is advertised and used to sucker the
non-informed buyer.
- --
Ron n1zhi
(e-mail address removed)
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