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NS-03G

Nobsound NS-03G User manual

  • Hello! I've reviewed the user manual for the Nobsound NS-03G SUB and NS-03G FR Power Amplifiers. This document provides instructions on connecting, setting up and troubleshooting the device. It details two versions - one for subwoofers and one for full-range speakers, both featuring a 3.5mm AUX input, banana plug outputs and a max output power of 100W. I'm here to answer any questions you may have about it.
  • What should I do before turning on the amplifier?
    What is the default power supply?
    How do I connect audio devices?
    What should I do If there is no sound output?
1. Before turning on the amp, please make sure the volume knob
at the leftmost end, avoid high volume ( high output power )
damaging your speakers.
2. Default OPTIONAL 19V power supply, whose output power is
enough to drive most home speakers. If you buy the version
without power supply or want higher output power, please
prepare high-quality power supply by yourself. Powered by 24V
power supply(4Ω load), the actual output power can reach 100W.
NS-03G 100W Mono Channel
Subwoofer /Full Frequency Power Amplifier
NOTICE
1. Please connect power adapter to NS-03G firstly and then
plug the power cord to the socket.
2. Connect audio device such as TV, CD player to the amp’s
input with high-quality 3.5mm AUX cable, and connect
proper passive speakers or subwoofers to amp’s output.
3. Rotate the volume knob from the leftmost end, the LED
indicator will light up, then you can rotate the volume
knob to get proper volume and enjoy HiFi music.
HOW TO USE
PARAMETERS
1
Model
Version
Number of channel
Audio input
Audio output
Max output power
Power amp chip
Op amp
Speaker impedance
Matched L/R Speakers
Matched subwoofer
Frequency response
Input sensitivity
THD
SNR
Working voltage
Default power supply(optoinal)
Dimensions(W*D*H)
Package dimensions(W*D*H)
Net weight
Package weight
Mono
3.5mm AUX
Banana speaker jacks
100W(24V, 4Ω load)
TPA3116D2
TL072
4Ω-8Ω
≤ 280mV
≤ 0.01% (1KHz)
≥ 118dB
DC 12V-24V(5.5mm / 2.5mm)
19V
69*88*33mm / 2.72*3.46*1.30in
150*150*50mm / 5.91*5.91*1.97in
190g / 0.42lb
310g / 0.68lb
2
NS-03G SUB
Subwoofer
NS-03G FR
Full Frequency
20Hz-20KHz
3-10 inch 10-200W
5-10 inch 30-150W
20Hz-180Hz
Address: Room 1329, Wang Cheng Building, Long Guan
street, Long Hua new District, Shenzhen, Guang
Dong, China
Contact: LIU CHENXI
Tel: +86-18570015672
Email: [email protected]
CONTACT INFORMATION
TROUBLE-SHOOTING MANUAL
3 4
NS-03G SUB Subwoofer
NS-03G FR Full Frequency
Problems
Cannot start up
Exceed rated
output power
Power switch isn't
pressed or toggled
Audio source isn't
connected or mute
Use another power
adapter to check out
Connect power
adapter or restart
Power adapter isn't
connected
Power adapter
is broken
Connect audio source
or turn up volume
Check output or change
matched speaker
Change high-quality
power adapter
Change shielded audio/
speaker cables
Use your player of
mobile phone to test
Change high-quality
matched speakers
Search correct
Blueototh Name
Disconnect all device a
nd turn off Bluetooth
Turn down the volume
of amp/preamp/source
Disconnect all device
and turn off Bluetooth
Volume of amp is
adjusted to minimum
Output shorted or
speaker isn't matched
Search and click wrong
Bluetooth Name
Bluetooth has been
paired by other device
Bluetooth input is prior
and has been paired
Output power
exceeds rated output
Press or toggle
power switch
Bluetooth
can't connect
Stop working
after a while
LINE input
can't connect
Distortion
Noise
No sound output
SolutionsReasons
Turn up volume Choose
correct input mode
Poor power adapter
Poor cables
Poor audio source
Poor speakers
Select incorrect
input mode
Turn down the
volume of amp
/