Tweakers' Asylum

RE: Audio Research SP9 MK2

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Thanks for your feedback, I do have a strong electronic backgound so hand on modification is not an issue. Just need a sudgestion from anyone own AR preamp with mod to bring more beautiful sound to my ears.
For the rectified diode , AR used 1N4006 but I think replace fast recovery diode NTE580 will do any better??? Need more advise.


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