Power amp circuit with PrAT wanted

[wabun]

Anyone has any amplifier design which can rival Naim in terms of PrAT ?
wish to construct one for ownself

 

[ashok]

Any specific Naim model ?

 

[Bone]

PrAT??

 

[Bonsai]

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.

 

[SY]

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.

 

[jez]

Wouldn't bother with Naim if I were you. Over-rated!

 

[Jen-B]

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/

 

[AndrewT]

One can build a Naim clone, will the result sound the same as a Naim?
Will it satisfy the listener?

 

[Jen-B]

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?!?

Will it satisfy the listener?

With many folks I have a suspicion that it might be influenced by how much money they have saved!

 

[Telstar]

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.

 

[richie00boy]

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?!?



With many folks I have a suspicion that it might be influenced by how much money they have saved!

Having been round the Naim factory, I can say that production tolerances there are miniscule and not an issue. Things are measured and matched.

Naim clones are not guaranteed or even likely to sound like the real thing as wiring (grounding) and power supply details are very important to the sound, as is PCB layout. Not to mention the components used will probably not be the same.