1000W Simple PA Amplifier

[nano nano]

Ba1200 to protect to protect pin connected on pcb where BA1200 whereas no signal pin to protect his explanation can you thank you

 

[wiljj78]

Nice work Sir Wiljj78... Thanks for sharing...
If I may ask... is it ok also to have separate fuses in each channel in that same PCB?
Many thanks & Regards

Thanks... I believed Mr. Mile is the right one to answer your question.
FYI only the spare terminals +/- of PSU is for Input&Display purpose, if you wish to use for second channel of amp. module then this point has to clarify to Mr. Mile only if PSU design is capable to handle 2 channel of BA1200.
Regards,

 

[wiljj78]

Ba1200 to protect to protect pin connected on pcb where BA1200 whereas no signal pin to protect his explanation can you thank you

I hope post#401 can answer your question.
Regards,

 

[borbon70]

I know that but I can't change what they want, there is many bad designs on the net, and there is many comercial brand amplifier similar to BA1200. This amplifier is simple and work, it is good enough for diy.

yes it is true sir APEX, that some designs on the net are bad and the designers do not share their knowledge. not like yours sir APEX that you share and help the diyers that want to build your designs.

more POWER sir!

 

[boss2009]

Thanks... I believed Mr. Mile is the right one to answer your question.
FYI only the spare terminals +/- of PSU is for Input&Display purpose, if you wish to use for second channel of amp. module then this point has to clarify to Mr. Mile only if PSU design is capable to handle 2 channel of BA1200.
Regards,

Many thanks Sir Wiljj78 for the reply & inputs.. hope sir Mile have a time to clarify..

Best Regards

 

[vedmitraa]

Will anybody please post completed 1000 watts or 1200 watts photos and practical results.

 

[boss2009]

Here's Rev1.2 using 10K/5W resistor.

Regards,

Hello Sir Wiljj78... Can you post also pdf file for PCB layout to be used for tonner transfer technique.

Many thanks & Regards

 

[desislavov]

Hi , Apex ! I have made PCB for this amp .
there is a few capacitors in scheme . how much volt must be ?

Regards !

 

[wiljj78]

Hello Sir Wiljj78... Can you post also pdf file for PCB layout to be used for tonner transfer technique.

Many thanks & Regards

Here it is....

 

[boss2009]

Here it is....

Many thanks Sir Wiljj78 Best Regards

 

[norvbul]

Soft Start w/ Fan Control.

Can you post the pdf files for your Soft Start w/ Fan control.

 

[jrsonic]

Where?

Philippines.thanks.

 

[suryadi5417]

BA1200 Balance In + H900

what should i do to get enough current for this dc servo and dual TL071 from shunt regulator of BA1200 balance in ?

 

[khalsa]

suryadi5417 Good Idea

 

[TonyTecson]

Philippines.thanks.

you can order on-line, rs-philippines, or element-14.....
RS Philippines | World Leading Distributor of Electronics, Electromechanical and Industrial Components
element14 Philippines | Formerly Farnell | Electronic Components Distributor

 

[AndrewT]

what should i do to get enough current for this dc servo and dual TL071 from shunt regulator of BA1200 balance in ?

Countersunk screws for the output devices !
At least add washers to take the splitting force. Better to change to a screw/bolt with a flat underside and a washer.

 

[HighTec]

Countersunk screws for the output devices !
At least add washers to take the splitting force. Better to change to a screw/bolt with a flat underside and a washer.

+1

 

[boss2009]

Thanks... I believed Mr. Mile is the right one to answer your question.
FYI only the spare terminals +/- of PSU is for Input&Display purpose, if you wish to use for second channel of amp. module then this point has to clarify to Mr. Mile only if PSU design is capable to handle 2 channel of BA1200.
Regards,

Hello Sir Mile.... if I use 20amps toroid for this type of PSU circuit will it be good enough to handle 2 channel?

Thanks & Regards

 

[yosha]

Hey dear Apex...i recently build ur amp and tested with 8ohm 15" sub with +-56v dc and it was really good and clean and powerfull....i just have a quest about the bias current and the 2 pots what pot should i care about to have the appreciated bias current and how mush it should be (bias current)..i made i short video while testing it and here is the youtube link hope u enjoy best regard and keep forward man peace
1200w my diy class ab amplifier testing - YouTube

 

[apexaudio]

Hello Sir Mile.... if I use 20amps toroid for this type of PSU circuit will it be good enough to handle 2 channel?

Thanks & Regards

20amps will be good to handle 2 channel
Regards