Так вот кровавые подробности про мой Nait 2.
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Стоковый Nait 2
Мой Nait 2
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Мод сделан Martin — автор сайта http://www.acoustica.org.uk
I think that was about 5years ago. I think I fitted Elna Silmic capacitors for the preamp stage feedback capacitors. The additional capacitor modification done was as item 2 I wrote about here:
No other modifications were done as I recall because Mark (who, I should declare, is my brother) didn't want the amplifier altered too radically. The mods are easily removed if you wish to return the amp to entirely 'Naim standard'.
The pictures above are of my own amplifier - the one you bought is similar, but modified more neatly
По факту я вижу
1: There is an LM317 which supplies both channels and the phono boards, in a tiny T092 package which looks like a transistor. A better 3-terminal regulator, such as a LT1086 or LM317T, is a straightforward drop-in replacement and a moderate improvement. If you stay with the LM317 supply at least change the 47uF rail decoupling caps for Oscons.
1c Replace the 47uF Roederstein caps in the line stage feedback loop with something better. Elna Silmic are stunning in this application. Use 47uf/50v parts - do NOT increase the capacitance.
2 Power amp The big 'win' here is to add power supply capacitance connected directy between the power transistor and the main PSU 0v star point. This is recommended even if the main PSU caps have been recently replaced, and makes an utterly unsubtle improvement in the Nait's ability to drive speakers with authority , and to its 'rounder' attributes - soundstage, colour and transparency