Balderdash !
+-50Vdc from the PSU is likely to result in 200W to 230W into 4r0 test load.
Built badly the maximum power could be as low as 120 to 150W into 4r0.
there isn't any needs to say that's a balderdash. i was referring to an article on "Nuova Elettronica". attached is the article's picture. now i don't wanna make a lot for noise talking and talking about watts, if i was wrong please explain why and which is the correct formula (obviously the efficiency isn't 100%)
Attachments
output power is a function of supply voltage. the exact function is:
Wrms = (0.8xVcc : 2.82)^2 : load
for example if you use dual 50vdc for supply on 4ohm speaker you'll have
Wrms = (0.8x(50x2) : 2.82)^2 : 4 = 28.3^2 : 4 = 200 Wrms
Wrms = (0.8xVcc : 2.82)^2 : load
for example if you use dual 50vdc for supply on 4ohm speaker you'll have
Wrms = (0.8x(50x2) : 2.82)^2 : 4 = 28.3^2 : 4 = 200 Wrms
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AndrewT is right about psu quality........
my shortcut for estimating power, {[(Vcc-Vee)/3]^2}/Rl
but of course without actually seeing how big or how heavy your power traffo is, all computations tend to be just that, computations....
my shortcut for estimating power, {[(Vcc-Vee)/3]^2}/Rl
but of course without actually seeing how big or how heavy your power traffo is, all computations tend to be just that, computations....
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so doesn't exist a unique formula?
however design quality is the most important number in equations and watts doesn't stay for more loud. building speakers a big part of work is done if the enclosure is well-projected! 🙂
good night diyaudio!
however design quality is the most important number in equations and watts doesn't stay for more loud. building speakers a big part of work is done if the enclosure is well-projected! 🙂
good night diyaudio!
mere variations on the same theme....they arrive at more or less the same figures....
i stopped counting the watts a long time ago.....now my priority is sound quality.....and power in watts is never an indicator of sound quality.....
i stopped counting the watts a long time ago.....now my priority is sound quality.....and power in watts is never an indicator of sound quality.....
X-sistor Replacement
Sir what transistor did u use to replace the MJE 15032, 15033 and 340, it seems it is not available even in Raon.
Thanks.
Sir what transistor did u use to replace the MJE 15032, 15033 and 340, it seems it is not available even in Raon.
Thanks.
Mile please help me to increase the treble in this amplifier i adjusted bias to 25mA as you suggested but no increase in treble please help me
Hi! Mile
Recently i noticed that the speaker(magnet) used with B500 amp is getting heated up more (can't touch for more than 3 seconds)even at medium volume,
there is no that much heat producing when used with other amp (100watt)
there is no dc offset to this amp but i am scared why this is happening
my speaker max power 150watt RMS 8R
amp output voltage is 28volts RMS (while testing)
Is this normal?? or anything problem with the amp???
Recently i noticed that the speaker(magnet) used with B500 amp is getting heated up more (can't touch for more than 3 seconds)even at medium volume,
there is no that much heat producing when used with other amp (100watt)
there is no dc offset to this amp but i am scared why this is happening
my speaker max power 150watt RMS 8R
amp output voltage is 28volts RMS (while testing)
Is this normal?? or anything problem with the amp???
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Hi! Mile
I don't have scope
How can i remove that HF instability
Thank you for your reply
Sir,
I think u can use Tip41c & Tip42c and D669 & B649 Max for +-75volts Thanks.
Regards
Kamran.