500W PA amplifier with Limiter

[PetruV]

Any links?

 

[ahmadfay]

Yes but 2x 55v 7-10a transformer is ok for one chanel

thank you, PetruV
regard

 

[PetruV]

thank you, PetruV
regard

Noooooo i was asking a question not answering, it may be wrong what i said

 

[ahmadfay]

Noooooo i was asking a question not answering, it may be wrong what i said

but, I'll try use 15 A, 2x 55VAC, may be better than ever

 

[PetruV]

but, I'll try use 15 A, 2x 55VAC, may be better than ever

that will be 1500w wich will be good even for two chanels

 

[PetruV]

You get 77 volts from 55v trafo so i think it will work

 

[ahmadfay]

its mine, b500 tef with 3 pair

 

[marjuni]

its mine, b500 tef with 3 pair

Hi ahmadfay can you share layot & skema
regard

 

[PetruV]

Your design is interesting,the way you have the transistors mounted

 

[ahmadfay]

Your design is interesting,the way you have the transistors mounted

This test only, next i will be using 7 pairs final transistor.
regards

 

[Gassanov]

Again, thank you mile

Just finish build another 3 B500 amp. So amazing, i don't have any difficulties to finish this amp. Again thank you so much for sharing your knowledge.

Warm regards from bekasi indonesia

Gassanov fuad.

 

[Gassanov]

2 x B500 (BTL) for sub wover

Hi sir mile....can i use 2 B 500 (bridge mode) to drive 8 ohm 18inch subwoover?
How much safety vcc for this amp, 55vac (76.5 VDC) is enough for BTL mode?
I need 1000 watt 4ohm amp to drive this sub. Thx in advance

Warm regars

Gassanov fuad

Bekasi indonesia

 

[apexaudio]

Hi sir mile....can i use 2 B 500 (bridge mode) to drive 8 ohm 18inch subwoover?
How much safety vcc for this amp, 55vac (76.5 VDC) is enough for BTL mode?
I need 1000 watt 4ohm amp to drive this sub. Thx in advance

Warm regars

Gassanov fuad

Bekasi indonesia

B500 in bridge mode can work only with 8 ohm load, for 4 ohm you must use 8 pairs of outputs instead 4 pairs per channel.
Regards

 

[Gassanov]

B500 in bridge mode can work only with 8 ohm load, for 4 ohm you must use 8 pairs of outputs instead 4 pairs per channel.
Regards

Wow thx for super fast respons. What i mean is, i use 2 b500 in bridgemode to drive single 18inch 8ohm subwoofer (not 4 ohm subwoofer).

So my calculation is. B500 work in 500watt 4ohm in btl mode so dual b500 will give me 1000 for 8 ohm. Correct me if i,m wrong.

Thx

 

[apexaudio]

Wow thx for super fast respons. What i mean is, i use 2 b500 in bridgemode to drive single 18inch 8ohm subwoofer (not 4 ohm subwoofer).

So my calculation is. B500 work in 500watt 4ohm in btl mode so dual b500 will give me 1000 for 8 ohm. Correct me if i,m wrong.

Thx

Yes but in reality you will get about 900W at 8 ohm.

 

[Gassanov]

Yes but in reality you will get about 900W at 8 ohm.

Ok thx alot sir.... Thats enough for me.

Again thankyou soooooo much

Regard

 

[ahmadfay]

Hi ahmadfay can you share layot & skema
regard

i used this one

salam kenal...

 

[ahmadfay]

and this is from apex audio

 

[nugroho]

i used this one

salam kenal...

hai ahmadfay can you share pdf file of pcb design
salam kenal

 

[wendipassundan]

My new APEX B500 in Horizontal position (tested and working) with APEX protect using NE555 IC in progress.

Many thanks to APEX....

hy,can you tell me skematic of protector with NE555

regards