"@djk how could i get more power out of this amp."
How much power?
What is it for?
Crown made the M600, M2000, MA10K all using the 2N3773.
The more outputs the more power (and a bigger power supply).
The M600 is a bridge amplifier.
The M2000 and MA10K are bridged bridge amplifiers (although the MA10K would only do 7KW continuous, 10KW on program material).
The M2000 was frequently used to generate a clean 120V/60hz for medical equipment.
How much power?
What is it for?
Crown made the M600, M2000, MA10K all using the 2N3773.
The more outputs the more power (and a bigger power supply).
The M600 is a bridge amplifier.
The M2000 and MA10K are bridged bridge amplifiers (although the MA10K would only do 7KW continuous, 10KW on program material).
The M2000 was frequently used to generate a clean 120V/60hz for medical equipment.
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Crown MA10K is 10KW/0.5Ω 1Khz tone burst.
Top layer has 80pcs 2N3773, second layer the same (160pcs total).
An externally hosted image should be here but it was not working when we last tested it.
Top layer has 80pcs 2N3773, second layer the same (160pcs total).
An externally hosted image should be here but it was not working when we last tested it.
The 3773 is a good output device for one that is limited by 140Vceo.
let's start with a +-65Vdc supply, that allows for a bit of overvoltage for the mains electricity supply. That supply will allow a maximum output of ~60Vpk into a suitable load.
60Vpk into 1r0 is equivalent to 1800W.
Now design and build those 3773 into a +-65Vdc balanced amplifier.
We can expect 3600W into a 2r0 load.
If sufficient capacity is built into the amplifier it could even be designed using a lot of skill to drive a 1r0 load to ~7kW.
Is that close enough to 10kW?
But, I would never recommend putting all my assets into a one amplifier PA duty. I would much rather have seven or eight 1kW amplifiers driving the speakers for my paying audience.
"The 3773 is a good output device for one that is limited by 140Vceo.:
In the MA10K they are hand-selected to allow for the 163V it runs at.
I agree with the 'not all the eggs in one basket' principle too.
The raceway at Indianapolis uses 140V lines with 465 loudspeakers driven by racks of MA10K.
In the MA10K they are hand-selected to allow for the 163V it runs at.
I agree with the 'not all the eggs in one basket' principle too.
The raceway at Indianapolis uses 140V lines with 465 loudspeakers driven by racks of MA10K.
Thanks for the replies friends.
@djk- i got your point, more outputs more power which i know already
@gaetan8888- thanks a lot for your help. what i need to ask is adding more output trans. using the same circuit and same power supply which i have and build(uploaded the pics as well), what more changes(component values, transistors etc) i need to change.
@sakis- if you dont want posts originated from India then better not watch and post irrelevant to the subject or theme. I be a member of DIY to learn a lot and share little that i know.
Do you own DIY or DIY audio belongs to you. It seems a problem for you from where a member belongs. You should encorporate a filter or moderator not to allow people from India to be a member of DIY. I know that DIY is open for everyone no matter where you are from. I came here to learn, dont make this a bitter experience.
and I am not fond of car audio and car audio magazines.
Thanks
@djk- i got your point, more outputs more power which i know already
@gaetan8888- thanks a lot for your help. what i need to ask is adding more output trans. using the same circuit and same power supply which i have and build(uploaded the pics as well), what more changes(component values, transistors etc) i need to change.
@sakis- if you dont want posts originated from India then better not watch and post irrelevant to the subject or theme. I be a member of DIY to learn a lot and share little that i know.
Do you own DIY or DIY audio belongs to you. It seems a problem for you from where a member belongs. You should encorporate a filter or moderator not to allow people from India to be a member of DIY. I know that DIY is open for everyone no matter where you are from. I came here to learn, dont make this a bitter experience.
and I am not fond of car audio and car audio magazines.
Thanks
"i m using a 30-0-30, 8 amp transformer "
With two pair of outputs that might get you as much as 120W/4Ω and power a second channel too.
You might get as much as 200W/2Ω; but that would need very good heatsinking, high-performance insulators, and you might consider a third pair of outputs.
I would use the TIPs rather than the BDs, and use 10Ω in their emitters rather than 100Ω.
Adjust the bias until you have 0.34V across the base of the outputs (the 10Ω resistors).
With two pair of outputs that might get you as much as 120W/4Ω and power a second channel too.
You might get as much as 200W/2Ω; but that would need very good heatsinking, high-performance insulators, and you might consider a third pair of outputs.
I would use the TIPs rather than the BDs, and use 10Ω in their emitters rather than 100Ω.
Adjust the bias until you have 0.34V across the base of the outputs (the 10Ω resistors).
My speakers powered by my 100W amplifier
My self made speakers and videos of my system pumping some bass
Bass will destroy you 2X Pioneer TSW1208 D2 - YouTube
Bass will destroy you 2X Pioneer TSW1208 D2 - YouTube
Regards,
Aniket
My self made speakers and videos of my system pumping some bass
Bass will destroy you 2X Pioneer TSW1208 D2 - YouTube
Bass will destroy you 2X Pioneer TSW1208 D2 - YouTube
Regards,
Aniket
Attachments
more power
its not a DNA issue..big amplifiers are too esxpensive: true...but not a local problem..simply, we are new in this world and in starting everything is crude,big,blunt and powerful .Later it will be sophisticated,delicate,accurate and so called audiophile.Believe me when you are listening a 2000 watt rms audio system you are more inclined to feel thump than detecting it class ie.A,AB or B.At least my ears can not differentiate between classes of amp on higher volumes.
thanks
hi sakis,
its not a DNA issue..big amplifiers are too esxpensive: true...but not a local problem..simply, we are new in this world and in starting everything is crude,big,blunt and powerful .Later it will be sophisticated,delicate,accurate and so called audiophile.Believe me when you are listening a 2000 watt rms audio system you are more inclined to feel thump than detecting it class ie.A,AB or B.At least my ears can not differentiate between classes of amp on higher volumes.
thanks
thanks formula 22,
you made my amplifier even better, i would do the changes and mention the results later.
Earlier in the original circuit i set the bias to 25mA, output shows only 1mV, amplifier is dead quiet, no hum, no hiss.
what could be the ideal bias setting as you have included a trimpot in the schematic you updated.
Regards,
Aniket
you made my amplifier even better, i would do the changes and mention the results later.
Earlier in the original circuit i set the bias to 25mA, output shows only 1mV, amplifier is dead quiet, no hum, no hiss.
what could be the ideal bias setting as you have included a trimpot in the schematic you updated.
Regards,
Aniket
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