Электронный трубчатый предусилитель KONDO AUDIO NOTE KSL-M7 12AY7 6X4 6Z4

Version 1: RCA version (6X4 rectifier, excluding electronic tubes)

Version 2: RCA version (6Z4 rectifier, excluding electronic tubes)

Version 3: RCA version (6Z4 rectifier, including Russian 12AY7 tube)

Version 4: RCA version (6X4 rectifier, including Russian 12AY7 tube)

1. The power supply of this machine is designed to use 6Z4 or 6X4 for gallbladder rectification, and the Japanese Wada type circuit field-effect transistor for voltage stabilization to increase the gallbladder flavor and enhance its charm; The filament power supply uses LM317 for voltage stabilization, and both high voltage and filament power supply have delayed outputs to extend the amplifier board The lifespan of the upper gallbladder

2. This circuit has 6Z4 and 6X4 rectifier versions. Switching between 6Z4 and 6X4 does not require a conversion socket, and the two red jumper caps can be manually changed, which is very simple and convenient.

3. Design with a bold filament suspension of around 90V to improve signal-to-noise ratio and bile duct lifespan.

4. The signal-to-noise ratio is very high, and even ear patch speakers are difficult to hear the bottom noise.

5. All aluminum solid knob, all aluminum alloy chassis, panel thickness 8mm, other 3mm, dimensions: 430mm (width) * 360mm (depth, excluding knob and RCA depth) * 90mm (height)

6. RCA version: 4 sets of RCA inputs, 2 sets of RCA outputs

Balanced version: 3 sets of RCA inputs+1 set of balanced inputs, 2 sets of RCA outputs+1 set of balanced outputs

7. Test data:

(1) Distortion THD: 0.032% (1KHZ, 1V output)

(2) Signal to Noise Ratio (S/N): 104dBr

(3) Frequency response: 5HZ-30KHZ (+1 dBu, the American ATS-2 tester can only measure this frequency, and the actual high frequency should be above 80KHZ)

(4) Magnification factor: 17 times

(5) Maximum no-load output: 22 79V (1KHZ, tested with distortion less than or equal to 1%)

(6) Minimum input: 300uV

(7) Output impedance: less than 2K ohms

(8) Input impedance: 100K ohms

8. This machine uses electronic tubes: 6Z4 (6U4N) or 6X4 (depending on the selected package) * 1pcs, 12AY7 * 2

9. Weight: 9.8KG.