|MadSci Network: Engineering|
How common did you say this was? I have never seen it. I also checked with some of my audiophile colleagues and some of the local stores and had no luck. The answers were the same, however, it must be a proprietary marketing expression. Something like PPP from Philips, or SSS from Sony. I'll be happy to follow up on this if you can provide me with a manufacturer or brand name. Once we find out what the PMPO stands for, I can, then, try to explain the principles behind it, and what makes it so great besides marketing. Perhaps the sales person, at the store where you saw this, can show you the owner's manual for the device in question. I'll standby for a response from you, and I'll keep asking. Abtin Spantman SPANTMAN@EXECPC.COM This was forwarded to me (Abtin) by Harry Astle. >>>>>>>>>>>>>>>>>>>>>><<<<<<<<<<<<<<<<<<<<<<< Subject: PMPO Date: Thu, 18 Feb 1999 20:18:28 -0500 From: Harry Astle
Organization:Chipmunk Inc To: email@example.com I found the following off URL: http://www.compware.com.au/tforum/messages/511.html I enjoy the MadSci site; you all keep up the good work! HarryA Easy. PMPO stands for peak music power. RMS stands for root, mean, square. The difference??? PMPO is the wattage that the speaker can withstand over a very short period. For example 300Watts PMPO means that a speaker can withstand 300Watts, this period however may only be for 0.5 of a second. RMS is the sustain wattage that the speaker is happy running at all day. If you play music loud alot, better to go for a higher RMS. People usually quote PMPO because it makes there speakers look good. Remember that a higher RMS or PMPO doesn't mean that the speaker will sound louder. For a 30Watt RMS speaker to sound twice as loud you need 10x the wattage to drive it (amplfication). Look for other things like sensitivity in dB but thats another story.
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