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Old 27th May 2010, 03:21 AM   #1
wabun is offline wabun  United States
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Default Power amp circuit with PrAT wanted

Anyone has any amplifier design which can rival Naim in terms of PrAT ?
wish to construct one for ownself
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Old 27th May 2010, 04:08 AM   #2
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Any specific Naim model ?
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Old 27th May 2010, 08:36 AM   #3
Bone is offline Bone  United Kingdom
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PrAT??
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Old 27th May 2010, 09:27 AM   #4
Bonsai is offline Bonsai  Taiwan
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Pace, Rythm and timing.

Take my advice and don't believe a word of it.

Build a Leach and you will have a really good amplifier.
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Old 27th May 2010, 09:44 AM   #5
SY is offline SY  United States
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Quote:
Originally Posted by Bone View Post
PrAT??
A term made up by (I believe) Martin Colloms. It allows hack writers to sell articles to unethical magazines, as well as helping advertisers like Naim and their dealers to sell overpriced amplifiers.
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Old 27th May 2010, 11:21 AM   #6
jez is offline jez  United Kingdom
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Wouldn't bother with Naim if I were you. Over-rated!
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Old 27th May 2010, 11:47 AM   #7
Jen-B is offline Jen-B  United Kingdom
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Mr wabun,

You can build a Naim…

Naim info:
http://www.acoustica.org.uk/

Naim circuit:
http://www.acoustica.org.uk/t/naim/poweramp_pix/NAP250%20schematic.jpg

More:
http://www.neilmcbride.co.uk/

Last edited by Jen-B; 27th May 2010 at 11:49 AM.
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Old 27th May 2010, 11:55 AM   #8
AndrewT is online now AndrewT  Scotland
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One can build a Naim clone, will the result sound the same as a Naim?
Will it satisfy the listener?
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Old 27th May 2010, 12:57 PM   #9
Jen-B is offline Jen-B  United Kingdom
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Quote:
Originally Posted by AndrewT View Post
One can build a Naim clone, will the result sound the same as a Naim?
That's an interesting question Andrew. I guess that circuit layout would be a variable if a non-Naim pcb was used, and also any component substitutions such as PSU caps, etc., would have an influence.

Also, how similar do two Naims sound, given production tolerances?!?

Quote:
Originally Posted by AndrewT View Post
Will it satisfy the listener?
With many folks I have a suspicion that it might be influenced by how much money they have saved!
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Old 27th May 2010, 09:06 PM   #10
Telstar is offline Telstar  Italy
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The ASR Emitter has better PRAT than the Naim top of the line.
Either way, i consider foot-tapping essential in a good system, but the amplifier is NOT the only factor in achieving it.
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