New Nobsound 100W Subwoofer/Full Frequency Mono Channel Digital Power Amplifier Audio Mini Amp (Subwoofer, Black)

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Brand Nobsound
Colour Black
Compatible devices TV, Phones, Personal Computer
Output wattage 100 Watts
Item weight 0.2 Kilograms
Model name NS-03G
Speaker size 68.5 Millimeters
Power source Corded Electric
Connector type 3.5mm Jack
Manufacturer Nobsound

About this item

  • NS-03G is a sub power amplifier for passive subwoofer. Please note it is not compatible with active/powered subwoofers as well as normal speakers.
  • It adopts TPA3116D2 chip and can offer 100W high power. With smooth volume control knob.
  • Super mini size and solid shell. It can be easily placed on your desktop or your subwoofer.
  • 3.5mm AUX input. You can connect various sound sources like phones, CD players, TV very easily.
  • This one doesn’t include a power supply. You can choose our high quality 19V power supply (ASIN: B074J81XRB) or buy the power supply you like. Please choose good quality power supply. We recommend 12~24V, at least 4A.

Product details

  • Is discontinued by manufacturer ‏ : ‎ No
  • Product Dimensions ‏ : ‎ 6.85 x 3.3 x 9 cm; 200 g
  • Date First Available ‏ : ‎ June 19 2017
  • Manufacturer ‏ : ‎ Nobsound
  • Place of Business ‏ : ‎ ShenZhen, GuangDong 518110,CN
  • ASIN ‏ : ‎ B072KDNW3F
  • Item model number ‏ : ‎ 4330353845
  • Customer Reviews:

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Product Description

ns-03g sub amp

TPA3116

Smooth volume control

3.5mm AUX Input

Super Mini Size

100W Subwoofer Amplifier

Smooth Volume Control

3.5mm AUX Input

Super Mini Size

Nobsound NS-03G SUB

Packing List
Packing List
  • 1 * SUB Amplifier

Nobsound NS-03G SUB

Parameters

  • Audio Input: 3.5mm AUX
  • Audio output: Banana plug
  • Power supply: DC 8-25V; at least 3A
  • Maximum Power: 100W @4 ohm
  • Chip: TPA3116D2 + NE5532
  • SNR ≥98dB
  • THD ≤0.04%
  • Terminating Impedance: 2~8 ohm
  • Frequency Range: 20~200Hz
  • Input Sensitivity: ≤280mV

  • Weight: 0.35Kg; 0.2Kg (without package)
  • Dimensions: 68.5 * 33 * 90 mm (not including terminals)

Panel Introduction

Panel Introduction
GFJ445 GFJ445 DZ078 DZ056 DZ072 GFJ445 GFJ518
Nobsound NS-03G SUB Nobsound NS-03G FR Douk Audio G4 Nobsound G2 Nobsound G2 PRO Nobsound NS-03G SUB Board
See Details
See Details
Customer Reviews
4.1 out of 5 stars
1,430
4.1 out of 5 stars
1,430
4.3 out of 5 stars
135
4.5 out of 5 stars
621
—
4.1 out of 5 stars
1,430
Type Subwoofer Amplifier Mono Channel Amplifier Mono / Subwoofer Amplifier Mono / Subwoofer Amplifier Mono / Subwoofer Amplifier Subwoofer Amplifier Board
Max Power 100W 100W 100W 100W 300W 100W
Channel 1.0 1.0 1.0 1.0 1.0 (1.1) 1.0
Input 3.5mm AUX 3.5mm AUX 3.5mm AUX + RCA RCA RCA 3.5mm AUX
Output Passive Subwoofer Passive Mono Speaker Passive Mono Speaker / Subwoofer Passive Mono Speaker / Subwoofer Passive Mono Speaker / Subwoofer + Active Subwoofer Passive Subwoofer
THD ≤0.04% ≤0.04% ≤0.001% ≤0.03% ≤0.03% ≤0.04%
SNR ≥98dB ≥98dB ≥103dB ≥106dB ≥106dB ≥98dB
Speaker Impedance 2~8 ohm 2~8 ohm 4~8 ohm 2~8ohm 4~8 ohm 2~8 ohm
Power Input DC 8-25V >3A (not included) DC 8-25V >3A (not included) 19V 4.74A 19V 4.74A 32V 5A DC 8-25V >3A (not included)
Nobsound NS-01G PRO Douk Audio Tone DZ057 DZ036 Douk Audio M1 Pro GFJ034H
Nobsound NS-01G PRO Douk Audio Tone Douk Audio G3 Nobsound NS-15G Douk Audio M1 PRO Nobsound NS-04G PRO
Customer Reviews
4.4 out of 5 stars
1,986
4.0 out of 5 stars
382
4.2 out of 5 stars
711
4.3 out of 5 stars
41
4.4 out of 5 stars
588
4.3 out of 5 stars
98
Type 2-CH Bluetooth 5.0 Power Amplifier (100W) 2-CH Bluetooth 5.0 Power Amplifier (100W) 2-CH Bluetooth 5.0 Power Amplifier (100W) 2-CH Bluetooth 5.0 Power Amplifier (200W) 2-CH Bluetooth 5.0 Power Amplifier (320W) 2-CH Digital Power Amplifier (200W)

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Customer reviews

4.1 out of 5 stars
4.1 out of 5
1,430 global ratings
Edited review
4 Stars
Edited review
Edit: I wrote review earlier about bass amplifier of same amp model. Amazon gets me back to previous review as I am trying to write review of this other one.This full range mono amp is great. I build a speaker for it. About bass amplifier version: Amplifier is small and built in a nice looking way. To me it has one problem. It sounds great, but bass in higher frequencies go too up. I mean, that I can hear vocals and little bit of other instruments too, not only low tunes. I hope I explained it in correct way. It is not too expensive and it is working. Mixed feelings about this one.
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Top reviews from Canada

kevin
5.0 out of 5 stars Works Well
Reviewed in Canada on June 25, 2020
Size: SubwooferColour Name: BoardVerified Purchase
This little amplifier works very well for your budget, low power subwoofer needs. I use this amplifier to bring life to two 12 inch, ported, single enclosure subwoofers that used to be in a vehicle, now collecting dust in my basement. I recommend this product if you are in a similar situation. This amp is not to be mistaken for a replacement to a high powered, high quality amplifier. My car amplifier easily drives these subwoofers to their limit. The Nobsound subwoofer amplifier powers these subwoofers to a reasonable listening level but does not have the power to bring down a house similar to a high powered car amplifier. To maximize the effectiveness of this amplifier, it is important to make sure the resistance of the subwoofer is as close to 2ohms as possible. The amplifier has a built in crossover although I am unsure of the frequency. Overall, for the price to performance, this is a great little amplifier. Note that a power supply is not included, I purchased the Nobsound power supply meant for this product and believe the combo is good value.
One person found this helpful
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Stian
5.0 out of 5 stars Works great for WD MyCloud EX4 NAS
Reviewed in Canada on June 10, 2024
Size: Power SupplyColour Name: Power SupplyVerified Purchase
Needed a replacement power supply for my Western Digital EX4 NAS. Plug fits perfect and specs are more than required for powering this 4Bay NAS.
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1234
4.0 out of 5 stars Edited review
Reviewed in Canada on September 25, 2020
Size: SubwooferColour Name: BoardVerified Purchase
Edit: I wrote review earlier about bass amplifier of same amp model. Amazon gets me back to previous review as I am trying to write review of this other one.
This full range mono amp is great. I build a speaker for it. About bass amplifier version: Amplifier is small and built in a nice looking way. To me it has one problem. It sounds great, but bass in higher frequencies go too up. I mean, that I can hear vocals and little bit of other instruments too, not only low tunes. I hope I explained it in correct way. It is not too expensive and it is working. Mixed feelings about this one.
Customer image
1234
4.0 out of 5 stars Edited review
Reviewed in Canada on September 25, 2020
Edit: I wrote review earlier about bass amplifier of same amp model. Amazon gets me back to previous review as I am trying to write review of this other one.
This full range mono amp is great. I build a speaker for it. About bass amplifier version: Amplifier is small and built in a nice looking way. To me it has one problem. It sounds great, but bass in higher frequencies go too up. I mean, that I can hear vocals and little bit of other instruments too, not only low tunes. I hope I explained it in correct way. It is not too expensive and it is working. Mixed feelings about this one.
Images in this review
Customer image
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Joe
5.0 out of 5 stars it works better than i would have thought
Reviewed in Canada on October 9, 2021
Size: SubwooferColour Name: BlackVerified Purchase
Honestly I did not have much optimism for this product , for the price and especially when i seen it , I'm running 2 x 25 watt Aura Bass shakers under my couches on a 2 ohm load off a 13.8Volt 10 amp power supply. man this little thing can put out ! , shakes the couches like crazy. a while movie it never got warm I also ran a small 8" subwoofer for fun 8 ohms and it did well. would have worked better if I was at 24 volts. impressive - little hum from the sub but nothing you would notice unless your listening for it , cant say for sure it was not the set up that caused the hum. great product for the money , I'm going to get the 200 watt version and see what it can do with max voltage and some car subs !!
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Patricia Beiger
1.0 out of 5 stars Defective
Reviewed in Canada on December 23, 2023
Size: Power SupplyColour Name: Power SupplyVerified Purchase
Defective item. Requested a refund. They offered to pick up the item at no cost. Waited all day for the driver. Turns out they came and took an empty box from my garbage and photographed it. Marked the item as "returned" and issued the refund. So now I'm stuck with electronic waste to dispose of. Obviously this vendor does not care enough about their products to even find out what went wrong.
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Jon Dough
5.0 out of 5 stars Good value for the price.
Reviewed in Canada on October 20, 2019
Size: SubwooferColour Name: BlackVerified Purchase
Replacement surround sound receiver only has line out for sub so I needed a small amp. This one works very well but only if you provide the full rated power supply. It will work on the minimum voltage and current listed but sound quality will suffer greatly.

With a 20v, 5A supply this little thing provides lots of power and doesn’t get very warm at all. Way better than shelling out a few hundred bucks for a powered sub when I already have a good sub.

I’m using the subwoofer version so no idea what the full range sound quality is like and the seller doesn’t list much for specifications either on amazon or with the unit.
3 people found this helpful
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Me
3.0 out of 5 stars Not Bad
Reviewed in Canada on December 19, 2018
Verified Purchase
Audio quality seems quite good at lower volumes. Higher volumes seem somewhat distorted. Low end of the volume control is too fine to adjust. There should be more range of volume adjustment at the low end. That part is disappointing. Reasonably satisfied.
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GMcleish
5.0 out of 5 stars As Expected
Reviewed in Canada on March 4, 2024
Size: Power SupplyColour Name: Power SupplyVerified Purchase
Simple enough. Plugs in with no issues. Powering my old NAS drive with no complaints from the hardware.
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Top reviews from other countries

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Dee
5.0 out of 5 stars Works perfect on my generic mini pc
Reviewed in the United States on August 15, 2023
Size: Power SupplyColour Name: Power SupplyVerified Purchase
After buying an i9 mini pc on Amazon, the pc started shutting down after only having it for 5 months. I would reset the pc, it would go through the boot up process, and then shut off. I tried everything, thinking that it was a Windows OS issue. Nothing worked until I decided to give this DC power adapter a try... it works perfect! I'm very satisfied with this purchase and hope this could help anyone going through the same issue with their mini pc or laptop.
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Dee
5.0 out of 5 stars Works perfect on my generic mini pc
Reviewed in the United States on August 15, 2023
After buying an i9 mini pc on Amazon, the pc started shutting down after only having it for 5 months. I would reset the pc, it would go through the boot up process, and then shut off. I tried everything, thinking that it was a Windows OS issue. Nothing worked until I decided to give this DC power adapter a try... it works perfect! I'm very satisfied with this purchase and hope this could help anyone going through the same issue with their mini pc or laptop.
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Matt
5.0 out of 5 stars Great output for size
Reviewed in the United States on March 3, 2023
Size: SubwooferColour Name: BlackVerified Purchase
For its size it works fantastic. I have an old Polk audio subwoofer that the main board inside stopped working. I bought this to bypass that board so I can continue using the sub. The sub is a 4ohm 12" sub in the polk audio box. The amp has no problem driving it. (The included instructions say to use it with 8" or smaller) I have the amp connected to the subwoofer output on my receiver, I did have to get creative with the adaptors. The receiver output is a mono channel RCA (LFE) and the input to this amp has to be a stereo 1/8". I had some extra adaptors laying around so that wasn't an issue. Once connected, powered up and volume adjusted it works great. Doesn't get hot and no static. Hopefully it'll last longer than the Polk audio board did. 5 Star for me. If I come across another broken sub I will buy one of these again.
7 people found this helpful
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NYC. BOY.
5.0 out of 5 stars Cumple con su función.
Reviewed in Mexico on February 6, 2023
Size: SubwooferColour Name: BlackVerified Purchase
Es pequeño pero la da funcionalidad para lo cuál lo adquiri me funcionó. Observación: debería de venir con su eliminador de voltaje.
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rcb
5.0 out of 5 stars Excellent 3.5 watt mono amp based on the TI TPA3116D2 chip
Reviewed in the United States on November 18, 2022
Verified Purchase
This is a well made, fine sounding little mono amp. It works great in most applications. It is based on the TI TPA3116D2 chip, which produces an extremely high quality 3.5 watt signal before distortion becomes intrusive. That's enough for most normal listening levels in a home theater, and if you aren't trying to play bass-heavy music at club levels, you'll probably never notice that this is not in any way a "50 watt" or "100 watt" amplifier or any other ridiculous exaggeration of its power. Why do people tell these lies? This is a very nice little 3.5 watt amplifier, and that's a good thing. Enjoy it for what it actually is!
Customer image
rcb
5.0 out of 5 stars Excellent 3.5 watt mono amp based on the TI TPA3116D2 chip
Reviewed in the United States on November 18, 2022
This is a well made, fine sounding little mono amp. It works great in most applications. It is based on the TI TPA3116D2 chip, which produces an extremely high quality 3.5 watt signal before distortion becomes intrusive. That's enough for most normal listening levels in a home theater, and if you aren't trying to play bass-heavy music at club levels, you'll probably never notice that this is not in any way a "50 watt" or "100 watt" amplifier or any other ridiculous exaggeration of its power. Why do people tell these lies? This is a very nice little 3.5 watt amplifier, and that's a good thing. Enjoy it for what it actually is!
Images in this review
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2 people found this helpful
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Amazon Customer
5.0 out of 5 stars Impressive little amp with big sound!
Reviewed in the United States on October 10, 2021
Size: MonoColour Name: BoardVerified Purchase
I was extremely happy when I learned about this amplifier. There are very few products that handle affordable monophonic audio reproduction in a small package. I've been wanting to create an audio system that incorporates a single high quality full range speaker for quite some time. This amp suited my needs perfectly. I paired this amp with a bluetooth receiver and hooked it up to a vintage electro-voice wolverine LT-12 speaker and was blown away with the sound quality. I wish they would make a bluetooth version of this amplifier board. That would be a 100% instabuy if they came out with that!!!! I strongly recommend!!!
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