Hi all members DIY audio
My name is George
5 years ago I started exploring audio power amplifier .
I learned about class ab amplifier .
So I decided to build my own amplifier using best improvements from all big brands running multiple tests on multisim and LTspice.
I learned to use easy EAD so I can build my PCB
I end up building a pure class b amplifier with 0.000mv emitter to bias. When signal increases bias increase typically class b.
The sound is amazing
And bias output stage looks good to all frequency range.
All this thanks to a good friend from Indonesia Anton that guide me always.
Amplifier details
Input stage is ne5532.
First op amp is used as preamplifier
Second op amp is part off power amplifier
Same as BGW
Classic and simple push pull vas stage
Predriver stage
Driver stage
Output stage is bryston type but different somehow.
Predriver stage is driving three driver stage and each driver stage driving two output transistor complementary
At full power still generating heat
Next step is to use Yamaha EEEngine tracking digital power supply
This amplifier will deliver great sound and strong output power
But nothing special about that.
after all this I have strongly understood that I'm limited by components that exist on the market available for us .
So I come up with ideas for new BJT audio module. Rated for big power.
Some details about it
1200v
150A
Power dissipation 1500w
Hfe about 200
Frequency transition 50Mhz -100Mhz
And the most important base (bias)
Will behave as an any single BJT for audio
Built in base resistor
Built in emitter resistor
This module will 10 Times powerful
Small compact and practical
Isolated mounting
Screw terminal connector
Ect.........
I have contacted Toshiba about this product and I get an email saying that is on waiting list they can't generate relevant information yet..
And I like to invite MR Nelson Pass be involved in this project regarding BJT audio module
His experience will be important and useful..
Any member that likes to be involved in this project is welcome.
Thanks
My name is George
5 years ago I started exploring audio power amplifier .
I learned about class ab amplifier .
So I decided to build my own amplifier using best improvements from all big brands running multiple tests on multisim and LTspice.
I learned to use easy EAD so I can build my PCB
I end up building a pure class b amplifier with 0.000mv emitter to bias. When signal increases bias increase typically class b.
The sound is amazing
And bias output stage looks good to all frequency range.
All this thanks to a good friend from Indonesia Anton that guide me always.
Amplifier details
Input stage is ne5532.
First op amp is used as preamplifier
Second op amp is part off power amplifier
Same as BGW
Classic and simple push pull vas stage
Predriver stage
Driver stage
Output stage is bryston type but different somehow.
Predriver stage is driving three driver stage and each driver stage driving two output transistor complementary
At full power still generating heat
Next step is to use Yamaha EEEngine tracking digital power supply
This amplifier will deliver great sound and strong output power
But nothing special about that.
after all this I have strongly understood that I'm limited by components that exist on the market available for us .
So I come up with ideas for new BJT audio module. Rated for big power.
Some details about it
1200v
150A
Power dissipation 1500w
Hfe about 200
Frequency transition 50Mhz -100Mhz
And the most important base (bias)
Will behave as an any single BJT for audio
Built in base resistor
Built in emitter resistor
This module will 10 Times powerful
Small compact and practical
Isolated mounting
Screw terminal connector
Ect.........
I have contacted Toshiba about this product and I get an email saying that is on waiting list they can't generate relevant information yet..
And I like to invite MR Nelson Pass be involved in this project regarding BJT audio module
His experience will be important and useful..
Any member that likes to be involved in this project is welcome.
Thanks
