Product parameters:

Rated output power: 20W+20W

Power consumption of the whole machine: 220W

Whole machine frequency response: 7Hz~50kHz(-3dB)

Harmonic distortion: ≤1% (1kHz)

Signal to noise ratio: 91dB

Input sensitivity: 300mV (when combined input)

1000mV (when pure power amplifier input)

Input impedance: 100k Ω.

Output impedance] 4Ω, 8Ω, 16Ω.

Input terminal] 3 groups of LINE; 1 group of PRE-IN

Use vacuum tube: 300Bx4, 6SN7X1, 12AU7x4, 12AX7x2.

Net weight: 27kg.

Overall size (WxDxH): 420mmx389mmx200mm.

Double-layer aluminum alloy panel finely polished

It is made by CNC precision craftsmanship with an all-aluminum shell. It is made by hand, and the whole machine adopts scaffold welding. The key position uses Japanese Takman fever grade carbon film resistors to improve sound quality with pure power amplifier function, power-on delay function (about 30 seconds) with power-off memory function, Japanese ALPS motor potentiometers, and thick silver-plated signal leads.

The pre-voltage amplifier stage is powered by a 6SN7 vacuum tube voltage stabilization system. The voltage amplifier and booster stages use 12AX7 and 12AU7 vacuum tubes imported from Czech JJ, respectively. The power tube uses four 300B vacuum tubes for pure class A push-pull amplification.

Left and right channel speaker binding posts

Output impedance is 4Ω, 8Ω, 16Ω

High-impedance speakers can also be matched

The external independent BIAS ADJ adjustment and BIAS meter detection function keep the power vacuum tube in the best condition at all times.