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About Watt Ratings

Last time when I was in the market for an amplifier, one dealer had commented (I think for Classe amps) that their amps actually deliver for what they are rated for! He mentioned that lot of companies lie/mislead on Watt Ratings. How to figure out what the correct output/Wattage is?

Another question is - the following I took from Monarchy Audio's web site:

'Two Singled-Ended Gain Stages driving a complementary Class A Output bank, which incorporates 8 matched Power MOSFETS, rated at 150 Watts each, for a total dissipating power of 1,200 Watts !'

So the question is the amp is rated at 150 Watts but then they mention that the total power is 1200 watts! I am confused.

Finally in Europe and Asia, the watt ratings are incredibly stated. For e.g. a desktop stereo system is rated at 1000W PMPO!!! What is the relationship between PMPO and RMS watt ratings?

Thanks
harrygoldsmith

Showing 1 response by harrygoldsmith

harrygoldsmith OP
13 posts
 
Thanks for the responses. Coming back to the dealer's comments on Audio companies not reporting the correct watt ratings - as a user, how can I verify this?

For e.g. One multichannel amp (with helding the name - don't want to get into any sort of trouble) is rated at 375 watts @ 4ohms but a review of the amp revealed that it only capable of driving 300 Watts at 4 ohms!
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