Naim NAP90 amp schematics...

DarkHorse · 1st February 2005, 07:16 AM

Hi,DIYer:
I know naim nap90 is the most smaller amp in the NAP series...
I very interesting in it's schematics,seaching for a long time but could find nothings...
so,I need you help!if you have NAP90 or NAP110's schematics,please post and show it to me..
thank you so much!
WINCO

here is nap135's inner topology:

Workhorse · 1st February 2005, 07:30 AM

Hi darkhorse

I really like your ID.

Here is a schematic of Naim135 amplifiers, hope you find it helpful

Regards
kanwar

pete.a · 1st February 2005, 07:50 AM

That's one reason why i never got hooked by the marketing hype of naim equipment. As good as it is you just end up with a very expensive box ! There's better and cheaper equipment out there and they use Audio Mosfets....

I once met the late Julian ( Mr Naim himself ) at a hifi show in London around 1987 when i was in my late teen's. He was an inspiring person, had time for everone . Verygood at marketing as i remember....

Just my 2 cent's

DarkHorse · 1st February 2005, 07:55 AM

Quote:

Originally posted by Workhorse
Hi darkhorse

I really like your ID.

Here is a schematic of Naim135 amplifiers, hope you find it helpful

Regards
kanwar

ah,Yes!both are good horse!
thank you for your help!
I don't have NAP135's schematics before...
the nap90 or nap110 maybe are too old and hard to find...???

thanks Workhorse again!
regards!
WINCO

here is NAIM NAP140's schematics:

:edit: Link to copyright graphic removed.

Upupa Epops · 1st February 2005, 09:12 AM

Manytimes I had read here about damaging impact of capacitor in signal path. People say, that acceptable are only PP types. Now I see here on this position bipolar elyts. Naim is famous firm, with many fans. Something is wrong

.

pinkmouse · 1st February 2005, 10:02 AM

Please don't post copyright information on the board. You can link to the original site, but don't cut and paste to posts here please.

analog_sa · 1st February 2005, 11:24 AM

Quote:

Naim is famous firm, with many fans. Something is wrong

I've reached the same conclusion more than 20 years ago. Something is wrong with the fans' hearing ot they simply don't care about the finer aspects and are more impressed with the big picture. Btw, the coupling caps are tantalums!

DarkHorse · 2nd February 2005, 04:25 AM

Quote:

Originally posted by pinkmouse

Please don't post copyright information on the board. You can link to the original site, but don't cut and paste to posts here please.

OK,pinkmouse:

I don't know the picture is protected by copyright!sorry to what I have done!
here is naim nap140' schematics link:
http://www.cndiyclub.com/bbs/dispbbs...1&ID=41&skin=1

tmblack · 2nd February 2005, 05:25 AM

The NAIM 135 sure is unimpressive. No emitter degenerating resistors on the LTP, no complementary output transistors, .22 resistor instead of coil, risetime capacitors, ugh.

I've seen better amateur designs.

Tom

tmblack · 2nd February 2005, 05:31 AM

I'd like to see the NAP250 schematics?

Thanks

Tom

1st February 2005, 07:16 AM	#1
DarkHorse diyAudio Member Join Date: Jan 2005 Location: GuangDong	Naim NAP90 amp schematics... Hi,DIYer: I know naim nap90 is the most smaller amp in the NAP series... I very interesting in it's schematics,seaching for a long time but could find nothings... so,I need you help!if you have NAP90 or NAP110's schematics,please post and show it to me.. thank you so much! WINCO here is nap135's inner topology:

1st February 2005, 07:30 AM	#2
Workhorse diyAudio Member Join Date: Dec 2004	Hi buddy Hi darkhorse I really like your ID. Here is a schematic of Naim135 amplifiers, hope you find it helpful Regards kanwar

1st February 2005, 07:50 AM	#3
pete.a diyAudio Member Join Date: Jul 2002 Location: Nottingham	Expensive box That's one reason why i never got hooked by the marketing hype of naim equipment. As good as it is you just end up with a very expensive box ! There's better and cheaper equipment out there and they use Audio Mosfets.... I once met the late Julian ( Mr Naim himself ) at a hifi show in London around 1987 when i was in my late teen's. He was an inspiring person, had time for everone . Verygood at marketing as i remember.... Just my 2 cent's

1st February 2005, 10:02 AM	#6
pinkmouse diyAudio Moderator Join Date: Apr 2002 Location: Chatham, England	Please don't post copyright information on the board. You can link to the original site, but don't cut and paste to posts here please. __________________ Al I conceive of nothing, in religion, science or philosophy, that is more than the proper thing to wear, for a while. Charles Fort

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1st February 2005, 09:12 AM	#5
Upupa Epops diyAudio Member Join Date: Aug 2003 Location: Prague,Czech Republic	Manytimes I had read here about damaging impact of capacitor in signal path. People say, that acceptable are only PP types. Now I see here on this position bipolar elyts. Naim is famous firm, with many fans. Something is wrong .

2nd February 2005, 05:25 AM	#9
tmblack diyAudio Member Join Date: Jan 2005 Location: UK	The NAIM 135 sure is unimpressive. No emitter degenerating resistors on the LTP, no complementary output transistors, .22 resistor instead of coil, risetime capacitors, ugh. I've seen better amateur designs. Tom

2nd February 2005, 05:31 AM	#10
tmblack diyAudio Member Join Date: Jan 2005 Location: UK	I'd like to see the NAP250 schematics? Thanks Tom

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