30Wx2 Digital stereo audio power amplifier board 12V/24V supply DIY amplifier module DY-AP3015

Recommendation: To improve the performance, if the module works upper 20W x 2, a cooling fin may be needed.
If the power of speakers are lower than 30W, please decrease the volume to adapt the power.
NOTE：Turn the knob clockwise to switch the module set on with clicking voice, and continue to rotate, volume will be increased. Turn the knob counterclockwise, volume will decrease and turn off with clicking voice. The knob default is on.

NOTE：
1、8~24VDC is recommended; upper than 26V, it will be damaged, lower than 8V, it will generate noise.
2、Driving 4Ω load, power supply must be under 12V; and driving 8Ω load, supply must be under 24V.
3、The supply current must be 2A at least.
4、If the module works upper 20W x 2, a cooling fin may be needed.
5、The module is designed for audio signal range 0.5V~1.5V.
6、The line connecting speaker with module should be within one meter.
7、ESD protection , please release ESD on your hands before you contact the module.
8、30W and upper power speaker is recommended.
Fault Check
1、The speaker tapped when power on.
1）Check that the speaker load is so small that the current through the speaker is enough for chip goes into DC protection. Try to lower the supply and restart.
2）Check that if the power supply is low that cannot drive the speaker. 2A power supply current is ok.
2、Floor noise in speaker when playing
1）Play another music to verify the noise is not related with music itself.
2）Short the input-end of module to verify the noise is not related with the module itself.
3） Replace better audio line to check if the noise is caused by the audio line because of low quality.
4）Replace the speaker to check If the noise is caused by speaker itself.
5）Replace the power supply to check If the noise is caused by unstable power.
3、The temperature of speaker is very high
Replace with bigger power speaker, or decrease the volume to adapt the speaker.


(DY-AP3001)
Features:
10W/20W/30W Class-D audio power amplifier module Wide supply voltage range 12V/24V DY-AP3001

NOTE：
1、8~24VDC is recommended; upper than 26V, it will be damaged.
2、Driving 4Ω load, power supply must be under 16V; and driving 8Ω load, supply must be under 24V.
3、The supply current must be 2A at least.
4、Inverting power supply is not permitted, or the chip will be damaged.
5、The module is designed for audio signal range 0.5V~1.5V.
6、The line connecting speaker with module should be within one meter.
7、ESD protection , please release ESD on your hands before you contact the module.
8、30W and upper power speaker is recommended.
Fault Check
1、The speaker tapped when power on.
1）Check that the speaker load is so small that the current through the speaker is enough for chip goes into DC protection. Try to lower the supply and restart.
2）Check that if the power supply is low that cannot drive the speaker. 2A power supply current is ok.
2、Floor noise in speaker when playing
1）Play another music to verify the noise is not related with music itself.
2）Short the input-end of module to verify the noise is not related with the module itself.
3） Replace better audio line to check if the noise is caused by the audio line because of low quality.
4）Replace the speaker to check If the noise is caused by speaker itself.
5）Replace the power supply to check If the noise is caused by unstable power.
3、The temperature of speaker is very high
Replace with bigger power speaker