XY-S100H 50W*2+100W Subwoofer Treble Bass 2.1 Bluetooth Amplifier Audio Module
https://www.icstation.com
Email: orders@icstation-team.com
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speaker in 2ohm to 8ohm within frequency 20Hz~200Hz. The lower the power of the speaker, the
lower the input power required.
Q3.How to choose Bluetooth or AUX/USB audio input mode?
A: AUX/USB mode has priority over Bluetooth mode.User need disconnect AUX or USB if use
Bluetooth as input audio signal. The priority of connecting first is high for AUX and USB.
Q4.Why is the volume working normally when volume small and there is turbidity after
increase volume?
A: If there is sound distortion, try changing the adapter power supply to one with a higher voltage
and current or turn down the volume.
Q5.Why is the volume working normally when volume small and there is pause after increase
volume?
A: The input power is insufficient. Try using an adapter power supply with higher voltage and current.
The power supply has an intermittent power-off protection feature. Use a power adapter that matches
the requirements.
If the power of the power supply is too high, reduce the power of the input power.
If the power amplifier board is too hot, triggering the overheat protection, increase the size of the
radiator.
Q6.What factors are related to the sound quality?
A: The sound quality is not just determined by the power amplifier module, but also by the power
supply, sound source and the entire sound system. Every component of the sound system affects the
sound quality, including the audio transmission line, audio power supply, tone circuit, power amplifier
circuit, speaker and surrounding environment.
The sound quality is at its best when the sound source, power supply, power amplifier module and
speaker are all well-matched.
Q7.How to adjust main volume?
A: The MASTER-VOLUME potentiometer is used to adjust main volume.
Turn the potentiometer to the right to increase the main volume.
Turn the potentiometer to the left to decrease the main volume.
Main volume affects both left/right channels and subwoofer volume.
Q8. How to adjust Treble/Bass volume?
A: R&L CHANNEL-BASS potentiometer is used to control bass.Turn right to enhance bass volume
and turn left to attenuate bass volume.The bass is not enhanced or attenuated when the potentiometer
is in the rightmost position.
R&L CHANNEL-TREBLE potentiometer is used to control treble.Turn right to enhance treble
volume and turn left to attenuate treble volume.The treble is not enhanced or attenuated when the
potentiometer is in the middle position.
It means that the gain of the treble or bass adjustment is too large if the sound is distorted when the
treble or bass is adjusted to the right to close to the maximum.User needs to turn the treble or bass
potentiometer to the left to lower the gain or turn the MASTER-VOLUME potentiometer to the left to
reduce the total volume.
Q9.How to adjust subwoofer volume and frequency?
A: SUBWOOFER-VOLUME potentiometer is used to control subwoofer volume. Turn right to
enhance volume and turn left to attenuate volume.
SUBWOOFER-FREQ potentiometer is used to control subwoofer cut-off frequency. Turn right to
