500W PA amplifier with Limiter

[SY]

Gentlemen, this is an English language forum. Please refer to the rules.

 

[buttercup1108]

thanks sir mile

warm regards

 

[rissotto]

sir miles can i ask u what is the power supply of this circuit b500?aand how many amperes needed?

 

[rissotto]

apex;
working b500
good sonics
i'll drink for this one;
cheers

in this picture i see that u use a torroidal transformer would you mind if i ask u where did you by that transformers en heatsinks? i want to have that one thank you very much appreciated...

 

[apexaudio]

sir miles can i ask u what is the power supply of this circuit b500?aand how many amperes needed?

I suggest 2x55VAC, 9A for stereo amp.

 

[Crys Me]

Mr. Apex, How much watts can produce with trafo 30A, ac 56-ct-56 (this trafo i use for 2 chanel/stereo).....Regards

 

[AudioSenseCD]

@apex sir what kind of software do you use for printing i can't get the exact size of the PCB
Regards

 

[Suluh Wibowo]

Hi Apex,
Can I put a logo apex on my amplifier box
Tx, regards....

 

[apexaudio]

Hi Apex,
Can I put a logo apex on my amplifier box
Tx, regards....

Yes, and I suggest that,
Regards

 

[wattaniya]

I suggest 2x55VAC, 9A for stereo amp.

hi apex sir,
u suggest 2/55vac 9A transformer, but, i asked transformer winder man, i need 9a transformer.
so he asked me, u need 9A by 9A or 4.5A by 4.5A? i m confused.
can u explain.
see the attached image which is correct 1 or 2?

 

[TonyTecson]

either will do....but you can ask him how much will each one weigh? i'll get the heavier one....

 

[wattaniya]

thanks tony for reply,
i asked the weight and reply asap.

 

[comasus]

@Mile

could you please tell which capacitors varies bandwidth and slew rates

and also i need to increase bandwidth of this amp especially at highs...

thank you

 

[iiee3602]

Power output B500 and H900

 

[iiee3602]

Sir apex, can you replace optoresistor with optotransistor?

 

[kamranyousaf]

If was no mistakes...
PCB size: 220x52,5mm

If i just put the same parts (mentioned on pcb) it will works ?

 

[kamranyousaf]

If was no mistakes...
PCB size: 220x52,5mm

Sir,

Would u please explain that what are the " A, B & PRO" points ? Thanks.

 

[Zinyx]

Point A and B is only for bridge mode, and PRO connect to PRO pin on PA protect. Amp will work without connect A, B and PRO pins.
Regards

 

[MATSAZILIN]

Sir. A, b is for bridge configuration and pro is for protection the output power when the power amp is short.

 

[MATSAZILIN]

Sir Mile, im too.
Can I put a logo (APEX B500) on my amplifier box.