500W PA amplifier with Limiter

[Gitsa]

The gap can not increase, the details abut

 

[apexaudio]

The gap can not increase, the details abut

Don't worry about power resistor heat, useing with music signal disipate is not that high.
Regards

 

[engel dela pena]

Amplifier don't have any tone controls, just have pot for volume control.
If you want to use mic preamp with tone control, equaliser or active x-over for sub-sut operate, that is separate modul, I can share some of this circuits in new thread "Active x-overs" if you want.
Regards

i'll go for mic pre amp with tone control

 

[apexaudio]

I finished collecting b500, here's what I got! "A few days ago will be tested.

Profi look with bias transisror on wire.
Regards

 

[apexaudio]

i'll go for mic pre amp with tone control

You can use some mixer.

 

[Gitsa]

Hello, passed the first test, the sound I liked

 

[apexaudio]

Hello, passed the first test, the sound I liked

What is rail voltage?
Regards

 

[Gitsa]

What is rail voltage?
Regards

The amplifier worked at a voltage of +-85B, take food from the neighboring amplifier that photo.

 

[apexaudio]

Power suffered at the voltage +-85B, take food from the neighboring amplifier that photo.

With this rail voltage heatsink must be larger, but ok for test. PCB is small, but this is powerfull amplifier.

 

[apexaudio]

MJE340/MJE350 need some small heatsink.

 

[apexaudio]

The amplifier worked at a voltage of +-85B, take food from the neighboring amplifier that photo.

What speaker you use for the test? PA or Hi-Fi?

 

[engel dela pena]

You can use some mixer.

like some commercial amp i want an amp with pre amp tone control in one🙂

 

[Gitsa]

What speaker you use for the test? PA or Hi-Fi?

Hello, As the load used is that the photo

[url=http://www.magnet.com.ua/loudspeakers/M112.html]

 

[apexaudio]

Hello, As the load used is that the photo

[url=http://www.magnet.com.ua/loudspeakers/M112.html]

What about crossover?

 

[apexaudio]

What speaker you use for the test? PA or Hi-Fi?

I asked becouse this amplifier have Hi-Fi sound, better than many "Hi-Fi" amps.
Regards

 

[Gitsa]

What about crossover?

 

[apexaudio]

Do you use some twiter (horn) protect?

 

[Gitsa]

Do you have a protection scheme?

 

[apexaudio]

Do you have a protection scheme?

Use two 12V 20W bulbs in series on input of HF crossover.
Regards

 

[apexaudio]

like some commercial amp i want an amp with pre amp tone control in one🙂

Commercial amp with tone control are Hi-Fi integrated amplifiers usualy 2x80W output power.
Regards