This is a DIY kit and you need to solder on your own. The kit does not contain 6 pairs of large tubes and 4 10000UF main capacitors.

 Golden Alice A60 is a generation flagship machine, high and low frequency density, control is very good, the level of detail is very good, the circuit is fully symmetrical architecture, current feedback, the main feature of this circuit is the use of complementary push-pull circuit from the input stage to the output pole. It is easy to get a conversion rate of several hundred volts per microsecond. It is very good for the capacitive load and the sound quality is better than that of the previous A2.

Different pipes with different sounds, but note that this is a pure post-class, there are customers to use and 2.1 speakers than the bass, it is better to buy a subwoofer

*** Match Toshiba 2SC5200.A1943 Bile, fine, full tone slightly darker
***With ON series power tube, bright tone, harmonic tone is very good, strong sense of section
***With Sanken power tube from Japan, deep dive, good intensity, strong low frequency, but try to achieve 200MA or more per tube

Main filter selection:
You can choose ELNA ADUIO and Nikon Japan KG as the main filter, but personal preference KG capacitors, ELNA tone is always a bit dark, the general level, the music did not taste good KG. The price is not much difference

The road has been provided with a rectifier circuit, so only need to connect the transformer, no need to external rectifier plate. Wiring installation is very convenient. The fully symmetrical architecture plus precision transistor pairing makes the midpoints very stable from debugging.

 

Adjust the quiescent current of the large tube to 100-300mA per tube. There is 1 TEST point on the plate. Test the 2-end pressure drop to 20-60MV.

 

Matters needing attention: remember to install large tubes when adding mica, mica film must be coated with thermal silica,

Operating voltage: AC24VX2 ~ AC42VX2 plus AC12V Note: AC12V is used to protect the circuit
Output power: 200W 8 euro 300W 4 euro
Distortion: 0.002% SNR: >100dB

PCB size: 195*80 mm

The circuit resistor is equipped with 718 resistors, and the protection circuit is Japan's Omron. The input pipe is paired with Toshiba's Toshiba's HIFI quality controller 2SC2240 2SA970. The promotion of the ON-pipe king NJE15034/35. high-power tube can be matched with 6 pairs of Dongzi 2SC5200.1943 or 4 pairs of tri-tubes, of course, can also be equipped with ON-tube.

Package includes:2pcs Reference Gold A60 Current Feedback Board DIY Kit