Aiyima AUDIO A07 MAX User manual

Mono / 2.0 Channel Stereo Amplifier
USER MANUALS
Model A07 MAX:
Website:www.aiyima.com Email: [email protected]
Telephone:[phone]
Location:4Floor, Building C,Getailong Industrial Zone,No.227,Bulong Road,Bantian
Street,Longgang District, Shenzhen
Shenzhen Yima Technology Co.,Ltd
It is forbidden to place equipment waste marked with the symbol of a crossed-out trashbin
together with other waste . This equipment is subject to collection and recycling .

2
1
Front & Back Surface Interface Instruction Operation Steps
2
1
5
6
7
8
3
4
Mono mode indicator light
On/Off/Total Volume Control Knob
Stereo mode indicator light
3.5 AUX output
Speaker interface
Mono speaker interface(red/positive, black/negative; R connected to
right speaker, L connected to left speaker)
Power interface (DC voltage 24-48V)
9Mono/stereo mode switching
RCA input(White/left channel, red/right channel)
1. Connect the passive speaker to the speaker interface.
2. Connect the audio source to be used to the RCA input port.
3. Connect the power supply (DC voltage range: 24-48V).
4. Switch the mono/stereo mode switch on the lower shell of the machine to select the
desired mode for use.
5.T urn the on/off knob clockwise to start the machine and adjust to the appropriate volume.
Frequency Response:
FFT:

SNR:
THD:
Measured Power:
3 4
A07 Max
Supply Power Speaker Impedance
BTL Stereo
PBTL Mono
Output Power
Output Power
24V 5A
4 Ω
68W*2
90W*1
6 Ω
61W*2
66W*1
8 Ω
55W*2
54W*1
32V 5A
4 Ω
78W*2
150W*1
6 Ω
71W*2
120W*1
8 Ω
65W*2
107W*1
36V 6A
4 Ω
107W*2
190W*1
6 Ω
100W*2
150W*1
8 Ω
94W*2
118W*1
48V 5A
4 Ω
120W*2
315W*1
6 Ω
110W*2
220W*1
8 Ω
102W*2
190W*1
4 Ω
250W*2
315W*1
6 Ω
210W*2
240W*1
8 Ω
185W*2
190W*1
48V10A
Connection Diagram:

Specification Parameter
Frequently Asked Questions
BTL Max
Output Power
Stereo Max
Output Power
Input sensitivity
Working Voltage
THD
300Wx2 / 4Ω
（48V/12A）
600W / 2Ω
（48V/12A）
1V
Frequency response 20Hz-20KHz（±1dB）
OPA2604AP, OPA2134, MUSEO1/02/03, LME49720NA,
LM4562, AD827AQ, etc.
AUX Maximum
Output level
Replaceable
Op-Amp Chips
1V
DC 24-48V
0.007%
SNR ≥110dB
Package weight 1.27kg
Package size L265*W240*H65 mm
A: The input level may be too large. If the volume of the sound source equipment is adjusted
to the maximum, and the volume of the machine is also adjusted to the maximum, it is
easy to be distorted. At this time, turn down the volume of the sound source input device
or machine.
Q: Why is the sound distorted?
A: The amplitude of electrical signals output by different playback devices is different. For
example, mobile phones are usually 0.35V, while CDs are 1V. The natural sound size is
different.
Q: Why does the volume of the machine remain the same, but the sound level
is different when connecting to different audio sources (for example,
connect a CD first, then a mobile phone)?
A: 1. If you are not using the original standard power supply, please replace the power supply
and test again.Many power supplies in the market have interference, which will cause
current sound.
Q: Why does the horn emit a loud electrical current sound or buzzing sound?
A: 1. Check if the machine has started and if the indicator light is on.
2. Is the selection of mono/stereo mode and the connection of the speaker interface correct.
3. If the above two points are normal, check whether the playback device of the input sound
source is paused, muted, or the volume is at the minimum.
Q: All my cables are connected, but there is no sound output?
NOTE: 3.5mm as output connected to the next amplifier without volume control
5 6
Please switch the correct mode before connecting！

2. When the signal line without shielding is used, there will be interference signals entering
the power amplifier for amplification. It is recommended that you replace the signal line
with shielding.
3. There is still noise after troubleshooting the above two points，Please confirm the noise
is from the external or the internal. Disconnect all inputs, only retain the power supply
and output cable, if the noise disappears, that means the noise is from the audio input.
If the noise is still there, the noise may be caused by interference with the power supply
or generated inside the amplifier.
A: 1. Please check the audio source has been turned on and the volume is not at the minimum.
2. Please confirm whether the speaker and amplifier match ( For example, the speaker is
fixed resistance or fixed voltage, the power of speaker is too much over the power of the
amplifier etc).
Q: Why there is no sound or very little sound after the amplifier is connected
to the speaker?
A: Please check audio source, input cable, volume potentiometer (some amplifiers have
balanced control or separate volume control of left and right channel ), speaker cable,
speakers (whether the position and the distance is symmetrical) and other factors.
Q: What are the reasons for the unbalanced left and right volume of the s
peakers and how to eliminate them?
A: Please confirm the on-off sequence is correct, normally it follows the order of signal
transmission when turn on: audio source → preamp / DAC → amplifier → speaker. (The
sequence is reversed when switching off. As the internal capacitors will be discharged for a
while after shutdown. If turn off the preamp firstly and then turn off amplifier, impact
sound will be easily caused which may damage the amplifier or speaker in severe cases).
Q: Why is there a thumping sound when swithing on/off?
7 8
Shenzhen Yima Technology Co.,Ltd
Product Warranty
If you have any questions about the goods you received, please contact us
online within 48 hours Customer service. If the product has quality problems
and needs to be repaired or returned, please fill in this card truthfully.
Username:
Contact number:
Date of purchase:
Product number:
Note: The product warranty is 1 year
Maintenance failure:
Warning
1. Please do not open the shell without permission. Improper operation may cause the
danger of electric shock.
2. Please use the power supply of the regular manufacturer, otherwise it will damage the
machine.
3. Please do not use the machine in a high temperature and humidity environment.