watts , din = rms

ok guys , 140 watts din would be how many watts rms?
any ideas?

cheers

Rob.

 

I'm not 100% sure but I don't think you can convert like that. They are different measurement techniques and while an amp may get good figures in one it may not in the other.

Generally though from what I see, DIN gives a higher number of watts than RMS.

If anyone can prove me wrong, please do!

What amp or speakers are you looking at?

 

Hi
not quite DIN is a standard and RMS is a mesurment,so a figure would be expresed as (n watts RMS DIN XXXX)

Regards

Stuart

 

tenson,
i think you are thinking of pmpo (peak music power output) or how much the amp will churn out just before it lets out it's supply of magic smoke.
cheers


julian

 

Yes but there is a DIN standard way of measuring an amps output (DIN 4500?). IIRC it is the amps maximum output at 1%THD when fed a filtered pink noise signal for 10min. The signal has an attenuated low frequency and high frequency to more accurately simulate music.

It would seem as a rule of thumb to convert a standard 'RMS' rating to a 'DIN' one times it by 1.5. So your 140watts DIN would become more like 95 watts RMS.

I know what you mean though smudge, I think the amps maximum output is measured in RMS when using the DIN standard. So what standard is usually used when we talk of an amps power rating?

 

Ah now standards, that's the beauty so many to choose from, old timers rate 15 Ohms moderate old timers' rate 8 and new boy's rate 4 so it all depends.

Stuart

 

thanks guys,
ive got an old pioneer sa7500 rated at 45 watts rms and im thinking of getting 4 (only cos their cheap) pioneer cs 501 speakers rated at 140 watts din.
do you guys recon its a good match?
cheers,
Rob.