shengya-audio







A-203HD Class a Balanced Amplifier
A-203HD Class a Balanced Amplifier
class a balanced

Output power: 250W+250W(8Ω)/500W+500W(4Ω)

Class A output power: 50W+50W (8Ω)

Frequency response: 10Hz-20KHz ± 0.5dB

Low level input sensitivity: 250mV

High level input sensitivity: 650mV (LINE 5 gear)

Harmonic distortion: ≤0.005% (1kHz 1W)

Signal to noise ratio: 90dB (wideband)

Input positive resistance: 47kΩ

Dimensions: 446×216×503mm

Weight: 34.5kg



• The pre-level volume control adopts the electronic volume control chip CS3310 manufactured by American Crystal Company

• The final stage is composed of 32 high-power transistors to form a powerful output stage; 1000W toroidal high-power transformer

• Two channels independently use audio filter capacitors and rectifiers, with a total capacity of up to 120,000 microfarads

• This machine can be used as an independent power amplifier; this machine has optical fiber, coaxial, USB digital interface

• Class A output status within 50W, when it exceeds 50W, it will automatically switch to Class A and B output mode

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