how to know rms value of 7000 watts pmpo. i know its not equallent. i want a round figure?

Answer 1

Hi there. There is no mathematical formula to convert watts PMPO to watts RMS. It is generally agreed in Hi Ffi circles that watts PMPO is about TEN times watts RMS . Therefore 7000 watts PMPO is about 700 watts RMS.

Answer 2

Probably about 1700W PMPO... and this is very approximated as PMPO isn't a "real" measure of power but an overinflated number used in marketing gimmicks. If a manufacturer is giving their power output in PMPO, it shouldn't be trusted. See the following from wikipedia: Peak Music Power Output (PMPO) (also Peak momentary performance output) is a much more dubious measure, of interest more to advertising copy-writers than to consumers. The term PMPO has never been defined in any standard but it tends most often to be the peak power of every amplifier in a system added together. Peak power is twice the sine wave power, so, for example, a 5 channel system using 10 watt amplifiers might be specified as '100 watts PMPO'. Sometimes, an extra factor is applied to get an even higher figure. The term PMPO is greatly despised by audio professionals; it is considered misleading and without purpose. Most systems cannot sustain their PMPO for more than a few seconds, loudspeakers being particularly vulnerable. The voice coil might burn out, or the speaker may actually catch on fire, from the voice coil becoming hot enough to ignite the speaker cone. In other situations, the crossover in the speaker cabinet may fail, including (but not limited to) burnt-out choke coils, exploded electrolytic capacitors, burnt-out resistors, or blown fuses. There have been genuine attempts to measure 'peak music power', as described below, but in general the term is not at all useful. To get an idea of the relationship between PMPO watts and watts "RMS", consider the following numbers advertised for some current loudspeakers. These models have been selected at random, and inclusion in or exclusion from this list is neither a recommendation nor a criticism. * Teac PM-100 3D surround-sound speakers: 16 W RMS, 180 W PMPO * Kinyo "200 W" PC speakers: 3 W RMS, 200 W PMPO * Philips Fun Power Plus MMS-102 PC speakers: 10 W RMS, 120 W PMPO (The Philips data sheet mentions only the "RMS" value; the PMPO value is claimed by retailers.) This list shows that PMPO figures are hugely exaggerated compared with the "RMS" values used by professionals. It also shows that there is little consistency in how much the figures are exaggerated making them almost totally meaningless.

Answer 3

take an average of between 8-10 and divide it to find the rms