500W PA amplifier with Limiter

[Techpolice]

B600TEF

thnx sir mile.

 

[Techpolice]

B600TEF

thnx you very sir apex

 

[rohin]

hi apex sir,can b500 tef with 7 pairs face 2 ohm load with +-85v dc.i need 2 ohm amp please suggest me.

 

[andrewlebon]

Diagramas amplificadores - Página 123
2 ohm amp

 

[sajti]

Diagramas amplificadores - Página 123
2 ohm amp

It's not possible to download, without registration...

Sajti

 

[rohin]

thanks andrew,this amp is modify by vedmitra sharma and they already gave files to me.

 

[sandeep kayarkar]

new design apex b500tef...work..tanks apex audio
and h900tef on trial.

Can you share pcb design and componend overlay pdf files?

 

[andrewlebon]

Hi Sajti
greetings can you send me your email adress
warm regards
Andrew

 

[apexaudio]

B700

 

[sajti]

B700

Hi,

did You test it? I had many problems when try to rebuild the Crest pro 200 series. It was not stable...

Sajti

 

[apexaudio]

Hi,

did You test it? I had many problems when try to rebuild the Crest pro 200 series. It was not stable...

Sajti

This is just idea,
Regards

 

[sajti]

This is just idea,
Regards

Maybe we can try to put it together

Sajti

 

[Techpolice]

new design apex b500tef...work..tanks apex audio
and h900tef on trial.

which schema you follow on this sir?

 

[nano nano]

good idea sir apexaudio. I will be simulated. test. the B700

 

[nano nano]

b600.tef http://www.diyaudio.com/forums/attachment.php?attachmentid=472490&stc=1&d=1426815148[image]

An externally hosted image should be here but it was not working when we last tested it.

[/image]

 

[sajti]

good idea sir apexaudio. I will be simulated. test. the B700

I did it already, but unfortunately the PSPICE model of the NE5534 is not really good, and makes oscillation, or the whole simulation is frozen with it.

Sajti

 

[sajti]

b600.tef http://www.diyaudio.com/forums/attachment.php?attachmentid=472490&stc=1&d=1426815148[image]

An externally hosted image should be here but it was not working when we last tested it.

[/image]

Looks fine!

Sajti

 

[apexaudio]

b600.tef http://www.diyaudio.com/forums/attachment.php?attachmentid=472490&stc=1&d=1426815148[image]

An externally hosted image should be here but it was not working when we last tested it.

[/image]

Nice work
Regards

 

[apexaudio]

I did it already, but unfortunately the PSPICE model of the NE5534 is not really good, and makes oscillation, or the whole simulation is frozen with it.

Sajti

Use 741 or TL071...

 

[sajti]

Use 741 or TL071...

741 is terrible slow in the simulation, and makes nice triangle wave from the sonusoidal input at 20kHz....
TL071 maybe OK, I will test it.

Sajti