AIYIMA A04 HIFI Digital Power Amplifier Manual

Table of Contents

Contents

1 Front panel introduction
2 Rear panel introduction
3 Specifications
4 Q & A
5 Documents / Resources
- 5.1 References
- 5.2 Download manual

Front panel introduction

POWER switch
LED
Volume

Rear panel introduction

Line in jacks
Output jacks
Power in jack

Specifications

Chips: TPA3251+NE5532*2
Speaker impedance: 4-8Ω
SNR: >92dB
Overvoltage protection: YES
Undervoltage protection: YES
Over temperature protection: YES
Power off "POP": YES
Max Power: 2*175W @ 4Ω, 10% THD+N
Max Power: 20-20kHz ±3dB
Input voltage: DC 18-35V
Overcurrent protection: YES
Undercurrent protection: YES
Power on "POP": NO

Q & A

The indicator light flashes

Please disconnect the power immediately and check the following conditions: Whether the power supply voltage is within the working range, whether the power is sufficient, and there is little over-temperature

There is current sound and noise

The power supply filter used is not good; the current sound is caused by wronginput by the power or audio input.
The input signal quality is poor; the output of the device connected to the input is improper, and the noise is caused by the abnormal input of the audio source.
The input cable is of poor quality; the line is in poor connect; the wiring is damaged; the wiring is suspended
The input connection has other playback devices, and some devices share the po-wersupply to cause noise."

Volume broken and breaking sound when turn loud

The power input is insufficient, confirm the wiring is correct first, and the supply current is sufficient,
The speaker itself has poor performance or damage, and the speaker power is too small or too large.
Left and right channel speakers (+) (-) output are independent, can not be connected to each other

No sound output, no sound in 1 channel

The speaker is broken, or the speaker cable is not connect well.
The input cable is not in good connect; the wiring is damaged; the output of the device connected to the input is improper.

The volume power is not enough?

Power and power supply voltage, the amplitude of the sound source signal, the size of the speaker impedance are all related, any kind of deficiency will affect the power

Shenzhen Yima Technology Co.,Ltd
Website: www.aiyima.com;
Email: sale@aiyima.com
Telephone: 86-0755-28268551
VK: https://vk.com/aiyima
Location: 4F, Building 7 Hekan industrial park. Wuhe south road 41. Long-Gang district.
ShenZhen. CHINA. 518000

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