EN
TROUBLESHOOTING GUIDE
Problem
Possible Reason
No Power
Unit is not plugged in correctly
Fuse blown
No sound
Cables connection not secure
Speakers cables are not connected
Volume is very low.
Input source in MUTE mode.
Noise from
Cables damaged or contacts not secure
Speakers
Strong magnetic interference when placed
close to the amplifier
No sound from
Microphone is OFF
Microphone
MIC volume is very low
Howling
Microphone too close to speakers
Warning: Always switch the amplifier off at the plug when connecting other devices like DVD or CD Players.
MAIN SPECIFICATIONS – BOOST-KS40 AMPLIFIER
Power Supply ........................................................................................................ 220-240V~ 50/60Hz
Frequency Response ..............................................................................................20Hz-20KHz (±3dB)
Main channel output .......................................................................................................... 75W + 75W
Total Harmonic Distortion ............................................................................................................≤0.5%
S/N Ratio .....................................................................................................................................≥80dB
Tone Control .....................................................................Treble ±12dB (10KHz), Bass ±12dB (100Hz)
Bluetooth frequency band............................................................................................. 2402-2480MHz
Max. RF emission power ........................................................................................................-2.84dBm
Weight of the set ............................................................................................................................. 8kg
Correct disposal of the product
This marking indicates that this product should not be disposed with other household wastes throughout the EU. To
prevent possible harm to the environment or human health from uncontrolled waste disposal, recycle it responsibly
to promote the sustainable reuse of material resources. To return your used device, please use the return and col-
lection systems or contact the retailer where the product was purchased. They can take this product for environmen-
tal safe recycling.
Examine & Repair
Check the power outlet
Contact technical personal
Check all connection cables.
Check the connection between amplifier &
speakers.
Turn the VOLUME button clockwise to a
higher level.
Release the input source MUTE mode.
Change cables or check the connection jack.
Reposition the amplifier further away from
the speakers
Turn on the Microphone.
Switch MIC VOL to a higher level.
Move microphone further away from spea-
kers or switch MIC VOL to a lower level.
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