AIYIMA AUDIO A04 User manual

Website:www.aiyima.com Email: [e-mail]
Telephone: [phone] VK: https://vk.com/aiyima
Location: 4F, Building 7 Hekan industrial park. Wuhe south road 41. Long-Gang district.
ShenZhen. CHINA. 518000
Shenzhen Yima Technology Co.,Ltd
HIFI Digital Power Amplifier
USER MANUALS
Model: A04

Front panel introduction
1 POWER switch
2 LED
3 Volume
1
2
3
Rear panel introduction
1 Line in jacks
2 Output jacks
3 Power in jack
123
Specifications
Chips : TPA3251+NE5532*2 Max Power : 2*175W @ 4Ω, 10% THD+N
Speaker impedance: 4-8Ω
Max Power : 20-20kHz ±3dB
SNR: >92dB
Overvoltage protection: YES Overcurrent protection: YES
Undervoltage protection: YES Undercurrent protection: YES
Over temperature protection: YES Power on "POP": NO
Power off "POP”: YES
Input voltage : DC 18-35V
Q & A
1. 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
2. There is current sound and noise
A、The power supply filter used is not good; the current sound is caused by wrong
input by the power or audio input.
B、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.
C、The input cable is of poor quality; the line is in poor connect; the wiring is damaged;
the wiring is suspended
D、The input connection has other playback devices, and some devices share the po-
wersupply to cause noise."
3. Volume broken and breaking sound when turn loud
A, The power input is insufficient, confirm the wiring is correct first, and the supply
current is sufficient,
B, The speaker itself has poor performance or damage, and the speaker power is too
small or too large.
C, left and right channel speakers (+) (-) output are independent, can not be connec-
ted to each other
4. No sound output, no sound in 1 channel
A, The speaker is broken, or the speaker cable is not connect well.
B, The input cable is not in good connect; the wiring is damaged; the output of the
device connected to the input is improper.
5, 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
1 2

Front panel introduction
1 POWER switch
2 LED
3 Volume
1
2
3
Rear panel introduction
1 Line in jacks
2 Output jacks
3 Power in jack
123
Specifications
Chips : TPA3251+NE5532*2 Max Power : 2*175W @ 4Ω, 10% THD+N
Speaker impedance: 4-8Ω
Max Power : 20-20kHz ±3dB
SNR: >92dB
Overvoltage protection: YES Overcurrent protection: YES
Undervoltage protection: YES Undercurrent protection: YES
Over temperature protection: YES Power on "POP": NO
Power off "POP”: YES
Input voltage : DC 18-35V
Q & A
1. 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
2. There is current sound and noise
A、The power supply filter used is not good; the current sound is caused by wrong
input by the power or audio input.
B、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.
C、The input cable is of poor quality; the line is in poor connect; the wiring is damaged;
the wiring is suspended
D、The input connection has other playback devices, and some devices share the po-
wersupply to cause noise."
3. Volume broken and breaking sound when turn loud
A, The power input is insufficient, confirm the wiring is correct first, and the supply
current is sufficient,
B, The speaker itself has poor performance or damage, and the speaker power is too
small or too large.
C, left and right channel speakers (+) (-) output are independent, can not be connec-
ted to each other
4. No sound output, no sound in 1 channel
A, The speaker is broken, or the speaker cable is not connect well.
B, The input cable is not in good connect; the wiring is damaged; the output of the
device connected to the input is improper.
5, 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
1 2

Website:www.aiyima.com Email: [e-mail]
Telephone: [phone] VK: https://vk.com/aiyima
Location: 4F, Building 7 Hekan industrial park. Wuhe south road 41. Long-Gang district.
ShenZhen. CHINA. 518000
Shenzhen Yima Technology Co.,Ltd
HIFI Digital Power Amplifier
USER MANUALS
Model: A04