500W PA amplifier with Limiter

[wattaniya]

how is the sound qty? any comments do u succseed with this b500.

 

[irvynejay]

24 volts
16 20 amps

 

[wattaniya]

thank u for ur reply.

 

[irvynejay]

how is the sound qty? any comments do u succseed with this b500.

cool you wont regret if you build this amp the b500 goog HIFI PA,,if you much power build H900

 

[wattaniya]

i am sorry to ask this question ,pls post the b500 pcb layout and parts layout ,board size,protection board size,soft start board size.

 

[aman khalsa]

u can find all thing in this thread ... read full thread....

 

[wattaniya]

why is this image low resolution.

 

[wattaniya]

anybody have this top and bottom pcb layout in high resolution.

 

[andrewlebon]

hi
greetings STEP DRIVER PROBLEM SOLVED NOW WORKING
THANKINGYOU
andrew lebon

 

[engel dela pena]

have you tried feeding 50hz/100hz and measure ac output,
does ac more than MV?

 

[wattaniya]

can someone post dc protect pcb for b500.

 

[wattaniya]

b500 power supply added another pair is this ok for 4pair of outputs.
can i use other power supply,protection,soft start for b500. is this power supply for stereo.

 

[teslar]

nothing is happening my dear i use 5200-1943 as drive because i have no 15032-33.
so u can use 5200-1943 its simple.
nd there is a mistake in pcb i show as a blue line ..make it and enjoy..

thank u

Hi aman khalsa and all.
Thank you aman khalsa for final check B500 easy drive and i corrected for PCB.
Regards.

 

[aman khalsa]

tlo72 is not working....

hi
greetings STEP DRIVER PROBLEM SOLVED NOW WORKING
THANKINGYOU
andrew lebon

hello sir my tlo 72 step drive is not working pls helo me out...

thank u,,

 

[aman khalsa]

happy new year my frnd,s..

thank u...

 

[Mamak]

hai apex.i build your b500 amp.using 2 pair power output.when i supply +-50vdc amp cannot work but when using example +45 and -50.it will work.so it work when negative power supply more than positive.and when at 9 o clock still ok.but when 10 to 11 it will unstable.what my problem apex?
i follow your pcb 100% same.

 

[irvynejay]

hai apex.i build your b500 amp.using 2 pair power output.when i supply +-50vdc amp cannot work but when using example +45 and -50.it will work.so it work when negative power supply more than positive.and when at 9 o clock still ok.but when 10 to 11 it will unstable.what my problem apex?
i follow your pcb 100% same.

Post some picture showing wiring and close up picture so we can help you

since Apex is not online

 

[Mamak]

ok i will post picture another day because i chatting at cyber cafe now.when i use 2 pair power output it should change resistor value for adjust bias?or u think my ground connection problem?

 

[irvynejay]

maybe you have problem with your wiring,, i run B500 on trapo 55vac -/+75 work fine no problem

 

[asia]

tlo step

hello sir my tlo 72 step drive is not working pls helo me out...

thank u,,

hello friend,
maybe it's time to abandon TLO step,
try to manage to get ir2117,