900W H-class PA Amp with Limiter

[iiee3602]

Pls. go to there website and email them asking the mode of payment. I order to theme, the mode of payment is thru bank BPI. I got my order after three weeks. BAV21, IR2117, MUR1620.

 

[blueice23]

Hello Guys,

It's been a while since I last visited this forum. Due to busy scheds and work loads. Anyways, I would like to ask where you can purchase this type of heatsink?

Thanks and happy new year to all.

 

[suryadi5417]

logo

don't forget with logo.....

 

[sandman15th]

good morning diyers.hi guys.=)pls check and is this correct position of ksp92 i used instead of bf421 thanks..

An externally hosted image should be here but it was not working when we last tested it.

An externally hosted image should be here but it was not working when we last tested it.

An externally hosted image should be here but it was not working when we last tested it.

An externally hosted image should be here but it was not working when we last tested it.

An externally hosted image should be here but it was not working when we last tested it.

 

[nano nano]

h900 tes

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[gantex]

Hello Apex audio, can i built this H900 with supply 40VAC and 45VAC ? With 8x10.000uf how much result of VDC?

Best regards.

 

[blueice23]

Hello Gantex,

That's gonna be 56.56VDC and 63.63VDc respectively.

Regards,
Neil

 

[antonamp]

In my APEX H900 I am using 4x45V AC, and it works fine!

Regards

 

[gantex]

Hello Gantex,

That's gonna be 56.56VDC and 63.63VDc respectively.

Regards,
Neil

thanks for your replay neil, is that single rail? can i use it?

if i use this apex psu class H. How much result VDC? Its same or not? I see some defferent here, please check this?

 

[gantex]

In my APEX H900 I am using 4x45V AC, and it works fine!

Regards

hello antonamp, thanks for comment. How much VDC u get if use 4x45VAC. I mean for HV and MV ?

Regards.
Venus

 

[sandman15th]

hi to all i need your expertice i have problem with my h900 version2 ..my High Voltage not working always in mv ,but sound good.. i used mur1640 instead of 1620 and ksp92 instead of bf421. pls check picture above. thanks..

 

[gantex]

hi to all i need your expertice i have problem with my h900 version2 ..my High Voltage not working always in mv ,but sound good.. i used mur1640 instead of 1620 and ksp92 instead of bf421. pls check picture above. thanks..

iam not see any pic here..

 

[sandman15th]

iam not see any pic here..

see post #2664 thanks =) im still waiting for solutions....... good evening

 

[gantex]

see post #2664 thanks =) im still waiting for solutions....... good evening

good evening for u sir, but night for my country
even u check your ksp92 is different pinout, ksp (EBC) bf(ECB).
Sorry if im wrong..

best regard.

 

[sandman15th]

good evening for u sir, but night for my country
even u check your ksp92 is different pinout, ksp (EBC) bf(ECB).
Sorry if im wrong..

best regard.

yes .. is this correct??

An externally hosted image should be here but it was not working when we last tested it.

and how i know that my step voltage are working? i have only DMM thanks morning.

 

[gantex]

U can check HV on final supply, HV result can work if u change the volume. Change volume step by step, and u can see HV depend ur volume control. Sorry for my laguage .

Best regard.

 

[gantex]

yes .. is this correct??

An externally hosted image should be here but it was not working when we last tested it.

and how i know that my step voltage are working? i have only DMM thanks morning.

can u share of pic bottom layout.?

 

[gantex]

Proper connection of driver collector is to step rail.
Regards

he mean is MV. Coz driver is part of final rail. Sorry if iam wrong.

Best regard to all DiY.

 

[antonamp]

hello antonamp, thanks for comment. How much VDC u get if use 4x45VAC. I mean for HV and MV ?

Regards.
Venus

I have 125,4VDC,-62,5VDC,-0-, +62,5- ,+125,4VDC

 

[sajti]

yes .. is this correct??

An externally hosted image should be here but it was not working when we last tested it.

and how i know that my step voltage are working? i have only DMM thanks morning.

Connect LED+10k resistor parallel with the MUR1620. It will be no light without signal, but it will flashing if the step driver is working.
I can give the schematic if you need it.

Sajti