I picked this amp up late last year and just got finished with its restoration. As most already know, this is the JDM version of the AU-819, so it's relatively rare. The restoration pretty much follows the AU-919, so leestero's fabulous restoration applies to this, specifically to the flat amp, driver board, preamp power supply, MM equalizer, and protection board. The one exception is the MC head amp, which is a different design. Leestereo was kind enough to assist me in the replacement part selection.
Here are some pictures of the restoration:
If you look at the MM equalizer board, you'll notice the "Kuehne" mod that Hyperion instructed me on with my AU-919. It really works like a charm to calm the 0 volt adjustment.
Here are some pictures of the restoration:
If you look at the MM equalizer board, you'll notice the "Kuehne" mod that Hyperion instructed me on with my AU-919. It really works like a charm to calm the 0 volt adjustment.
- would really like to own one of these (or rarer AU-819) - Jump switch and Loudness appeals to me 