any 15-25w super quality amp pcb ?

Ahmad_tbp · 3rd March 2005, 07:32 PM

hi all
i m lookin for a 15-25w high quality amp pcb to use as my pc speakers ... i donno which one has more quality mosfet amps or ic amps ? ... i think the stk series maybe better ... any pcb for a stk amp around 15-25w ?

jleaman · 3rd March 2005, 08:33 PM

I'm working on one right now want the schematc ? im also going to do a pcb group buy too.

But there also is the aleph -A mini that were working on too.

Interested ?

Ahmad_tbp · 3rd March 2005, 10:24 PM

hi ..
thnx a lot man ,, yeah i need the pcd , i can t change the schematic into a pcb layout :P .. i m very new ... but ONE big problem ...
i cant pay u anythin

... we ( in iran ) have no intenational credit card

... & the international prices is tooooo expensive for me

... :-< ... sorry

i ll be so grateful if u can help me ...

BrianDonegan · 4th March 2005, 01:09 AM

What kind of transistors do you have access to?

Ahmad_tbp · 4th March 2005, 07:49 AM

hi
unfortanately a few popular transistors ... but i think i can find stk ics or tip series transistors ...
i have a very good professional series JBL pc speakers ... but now after years .. one of its amp board was blow out , and rear & center speakers don t work any more , i decided to change all of the amps together ( rear / front / center & subwoofer amp ) ..
i hope u can help me , build a high quality amp ...

richie00boy · 4th March 2005, 08:21 AM

Quote:

Originally posted by Ahmad_tbp
hi all
i m lookin for a 15-25w high quality amp pcb to use as my pc speakers ... i donno which one has more quality mosfet amps or ic amps ? ... i think the stk series maybe better ... any pcb for a stk amp around 15-25w ?

Can you get IRF540 and IRF9540 or similar MOSFETs? There is a nice simple amp with good description and PCB layout on app note AN-948 on the IR website

Ahmad_tbp · 4th March 2005, 11:03 AM

hey man thnx a lot .. i think i may find them ( i hope ! :P ) ... thnx a lot ,, lemme see if i can find them

... i ll inform u

... thnx.. any idea for subwoofer ?

JDeV · 4th March 2005, 03:38 PM

Why not build a Gain Clone on veroboard or even easier, point to point? Very simple and high quality sound. That is if you can get some LM3886 or LM3875 IC's.

Ahmad_tbp · 4th March 2005, 09:33 PM

thnx a lot ..
that mosfet amp was great but i don have enough space in my subwoofer to buil 5 of them in put it together in that

... i think it s may better if i use stk seris

it so compact ,,, any idea ?

BrianDonegan · 5th March 2005, 03:00 AM

I second the gainclone idea. very small, very few components.

not sure you are going to be able to get National Semiconductor parts in Iran though.

http://www.chipamp.com

3rd March 2005, 07:32 PM	#1
Ahmad_tbp diyAudio Member Join Date: Jul 2004 Location: Iran/Shiraz	any 15-25w super quality amp pcb ? hi all i m lookin for a 15-25w high quality amp pcb to use as my pc speakers ... i donno which one has more quality mosfet amps or ic amps ? ... i think the stk series maybe better ... any pcb for a stk amp around 15-25w ?

4th March 2005, 01:09 AM	#4
BrianDonegan diyAudio Member Join Date: Dec 2004 Location: Rock Ridge	What kind of transistors do you have access to? __________________ Twisted Pear Audio

4th March 2005, 03:38 PM	#8
JDeV diyAudio Member Join Date: Oct 2002 Location: Cape Town	Why not build a Gain Clone on veroboard or even easier, point to point? Very simple and high quality sound. That is if you can get some LM3886 or LM3875 IC's. __________________ "Be carefull who's advice you buy, but be patient with those who supply it." From Baz Luhrmann's - Everybody’s Free (To Wear Sunscreen)

5th March 2005, 03:00 AM	#10
BrianDonegan diyAudio Member Join Date: Dec 2004 Location: Rock Ridge	I second the gainclone idea. very small, very few components. not sure you are going to be able to get National Semiconductor parts in Iran though. http://www.chipamp.com __________________ Twisted Pear Audio

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3rd March 2005, 08:33 PM	#2
jleaman Banned Join Date: Apr 2002	I'm working on one right now want the schematc ? im also going to do a pcb group buy too. But there also is the aleph -A mini that were working on too. Interested ?

3rd March 2005, 10:24 PM	#3
Ahmad_tbp diyAudio Member Join Date: Jul 2004 Location: Iran/Shiraz	hi .. thnx a lot man ,, yeah i need the pcd , i can t change the schematic into a pcb layout :P .. i m very new ... but ONE big problem ... i cant pay u anythin ... we ( in iran ) have no intenational credit card ... & the international prices is tooooo expensive for me ... :-< ... sorry i ll be so grateful if u can help me ...

4th March 2005, 07:49 AM	#5
Ahmad_tbp diyAudio Member Join Date: Jul 2004 Location: Iran/Shiraz	hi unfortanately a few popular transistors ... but i think i can find stk ics or tip series transistors ... i have a very good professional series JBL pc speakers ... but now after years .. one of its amp board was blow out , and rear & center speakers don t work any more , i decided to change all of the amps together ( rear / front / center & subwoofer amp ) .. i hope u can help me , build a high quality amp ...

4th March 2005, 11:03 AM	#7
Ahmad_tbp diyAudio Member Join Date: Jul 2004 Location: Iran/Shiraz	hey man thnx a lot .. i think i may find them ( i hope ! :P ) ... thnx a lot ,, lemme see if i can find them ... i ll inform u ... thnx.. any idea for subwoofer ?

4th March 2005, 09:33 PM	#9
Ahmad_tbp diyAudio Member Join Date: Jul 2004 Location: Iran/Shiraz	thnx a lot .. that mosfet amp was great but i don have enough space in my subwoofer to buil 5 of them in put it together in that ... i think it s may better if i use stk seris it so compact ,,, any idea ?

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