My Reference Audio Note Kit One ของแท้ Level One Upgrade โทร. 084 560 3199 Line: audiodirect 6/2/2565
1. The “Level one” upgrade. Mixture of Black Gates and Elna Cerafine caps that replaces some standard electrolytic caps in the amp and also installed as cathode bypass caps.
2. Audio note silver wiring,
3. Audio note copper foil capacitors. (See pics). Really top notch signal capacitors.
4. Large Elna Cerafine capacitor (the huge extra smoothing capacitor in the amp in the bottom of the pic)
5. Upgraded Noble volume pot (very well regarded and now unobtanum, not cheap on the used market) It would cost a fortune to build this with this spec amp nowadays.
6. Audio Note Shuguang 300B-Z (50 Years) premium grade. No: 08775 Chinese Shuguang Treasure 300B-Z(50 Years) premium grade. The carbon-sprayed black glass treasure series has better product stability, matching accuracy and sound quality than ordinary products. It is divided into two classic grade and premium grade same as treasure series tubes. 300B is directly-heated type cathode triode, used as class A1. In audio amplifier it suits for the condition that the output power is 10W.