XY-S350H 220W*2+350W HIFI 2.1 Bluetooth 5.1 Amplifier Module
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increase the radiator.
6>.How to adjust main volume?
Q:The Master-VOL 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 and right channels and subwoofer volume.
7>.How to adjust Treble/Bass volume?
Q:R&L 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 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-VOL potentiometer to the left to reduce
the total volume.
8>.How to adjust subwoofer?
Q:Subwoofer-VOL 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
increase frequency and turn left to decrease frequency. Frequency adjustment range is 20Hz-200Hz.
9>.What factors are related to the sound quality?
Q:The sound quality is not only related to the power amplifier module but also related to the power
supply, sound source and the entire sound system.
Basically every factor of the sound system will affect the sound quality. The main factors include the
audio transmission line, audio power supply, tone circuit, power amplifier circuit, speaker and
surrounding environment.
The sound quality is the best when the sound source, power supply, power amplifier module and
speaker match.
8.Package:
1>.1pcs XY-S350H 220W*2+350W HIFI 2.1 Bluetooth 5.1 Amplifier Module
2>.2pcs Aluminium Alloy Shell
3>.1pcs 6mm big knob cap
4>.4pcs 6mm small knob cap
5>.1pcs ‘+’ Screwdriver
6>.4pcs M2*18mm Copper column
7>.4pcs M2*4+3mm Copper column
8>.8pcs M2*3mm screw
Summary of Contents for XY-S350H
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