Product description
Classic TPA3116
Classic TPA3116 amplifier chip can offer 100W high power
Compatible with 2~8 ohm speakers
Can drive most home sub and mono speakers
Dual NE5532 OP-Amp
Dual NE5532 OP-Amp can offer high dynamic and analysis
SUB & PBTL Modes
G2 can be used as a mono channel amp or a sub amp
One G2 can drive one passive subwoofer or one signal channel passive speaker
Two or three G2 can be used to build a 2.0 or 2.1 audio system
SUB Frequency Control
With independent SUB frequency control knob
It can be turned to minimum to cutoff bass
Gain Setting
A gain switch on the bottom of the amplifier to allow 4-level of output level setting (20/26/32/36 dB), to keep the sound quality better and not affected by the the resistor part.
Upgrade Circuit
Optimized circuit can ensure totally no background noise
Built-in speaker protection circuit and low pass bass filter.
Packing List
1× Power Amplifier
1× Power Supply
Nobsound G2
Specifications
Power Supply: 19V 4.74A
Max power: 100W
Full frequency response: 20Hz-20kHz(±3dB)
The speaker matches the impedance: 2-8?
THD: Output 1W@ 0.03%
Working voltage: DC12-24V
SNR: ?106dB
Input sensitivity: 0.775V
Bass cutoff frequency range adjustment: 40-300Hz
Slope of bass attenuation: -12dB Slope
Dimensions (D*W*H): 118.5*98*33 mm / 4.65*3.74*1.30 in
Package size (D*W*H): 257*215*65 mm / 10.12*8.46*2.56 in
Net weight: 305 g / 0.67 lb
Package weight: 445 g / 0.98 lb
Panel Introduction
How to use
(A) SUB Mode
Use RCA cable to connect your audio sources like Phone / MP3 / PC / TV ... to the "AUDIO IN" port
Use speaker wire or banana plug to connect your passive subwoofer to the "SPK OUT" port
Connect the power supply with the amp firstly and then to the wall
Turn the toggle to "SUB"
Turn the toggle to "ON"
(B) Mono Channel Mode
Mono channel means single right channel or left channel. If you want to drive stereo speakers. you need two of this amps to drive right and left speakers separately
Use RCA cable to connect your audio sources like Phone / MP3 / PC / TV ... to the left or right "AUDIO IN" port
Use speaker wire or banana plug to connect your left or right speaker to the "SPK OUT" port
Connect the power supply with the amp firstly and then to the wall
Turn the toggle to "PBTL"
Turn the toggle to "ON"
Nobsound G2 Nobsound G2 PRO Douk Audio G4 Nobsound NS-03G SUB Douk Audio G3 Douk Audio M4
Feature Support both SUB & Mono; Gain adjustment Support both SUB & Mono; 300W high power Support both SUB & Mono Only for subwoofer; Super mini size; Low cost 2-CH Bluetooth amplifier; Tone control 4-CH Bluetooth amplifier
Power 100W 300W 100W 100W 50W x 2 50W x 4
Channel 1.0 1.0 (1.1) 1.0 1.0 2.0 2.0/4.0
Input RCA RCA 3.5mm AUX + RCA 3.5mm AUX Bluetooth 5.0 + 3.5mm AUX Bluetooth 5.0 + RCA + 3.5mm AUX + U-disk
Output Passive Mono Speaker / Subwoofer Passive Mono Speaker / Subwoofer + Active Subwoofer Passive Mono Speaker / Subwoofer Passive Subwoofer Stereo Passive Speakers 4 Passive Speakers / 2 Passive Speakers + Another M4 Amp
THD ?0.03% ?0.03% ?0.001% ?0.04% ?0.04% ?0.05%
SNR ?106dB ?106dB ?103dB ?98dB ?98dB ?98dB
Speaker Impedance 2~8 ohm 4~8 ohm 4~8 ohm 2~8 ohm 2~8 ohm 4~8ohm
Power Input 19V 4.74A 32V 5A 19V 4.74A DC 8-25V >3A (not included) 19V 4.74A 24V 4.5A
Douk Audio SE Douk Audio P1 Douk Audio U3 Douk Audio T3 PRO Little Bear MC1022 Music Levels
Feature Bluetooth 5.0 amplifier; 100W; 2-CH; TF & U-Disk Bluetooth preamp; Headphone amp; Vacuum tube; Tone control; APTX-HD Headphone amplifier; Classic; Mini size MM phono preamp; Vacuum tube; Audio Preamp 2(1)-IN-1(2)-OUT RCA stereo audio switch MIC Sound Level, Audio Spectrum, RGB LED