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Nobsound NS-03G Subwoofer Amplifier 100W Mini SUB Power Amp

  • Based on 601 reviews
Condition: New
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Availability: 13 left in stock
Fulfilled by Amazon

Arrives Sunday, Jun 23
Order within 22 hours and 40 minutes
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Features

  • 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.

Brand: Nobsound


Model Name: NS-03G


Speaker Type: Subwoofer


Connectivity Technology: Auxiliary


Recommended Uses For Product: Volume


Product Dimensions: 1.3 x 2.7 x 3.54 inches


Item Weight: 7 ounces


Item model number: 4330353845


Is Discontinued By Manufacturer: No


Date First Available: July 11, 2017


Manufacturer: Nobsound


Input Voltage: 25 Volts


Speakers Maximum Output Power: 100 Watts


Item Weight: 0.2 Kilograms


Number Of Items: 1


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Jun 23

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Doesn’t seem to be all that effective.
I’ve tried multiple different woofers at this point all ranging from 2-8ohm, 50-300watt and no matter what, they all just clip hard. Seems like the amp distorts very quickly at a pretty quiet level. Also not having a crossover adjustment doesn’t help it’s case. Maybe finding a VERY sensitive coil will bring the volume without the distortion, but the average 80-90 sensitivity 4ohm, 200watt gets very distorted very quickly. ... show more
Reviewed in the United States on September 3, 2023 by GJ

  • Good little amp
Decent power for it's size. Works best for bass shakers, not giant subwoofers. A lot of reviewers say it's weak, it only outputs 100 watts, read before you buy.
Reviewed in the United States on July 31, 2023 by Scalptrash

  • Great output for size
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. ... show more
Reviewed in the United States on March 3, 2023 by Matt

  • Not sure if this is really 100 watts
I bought the NS-03G to power a small subwoofer in my garage audio setup, and the output was barely audible until I cranked the volume knob to maximum on the amp. Originally the subwoofer was powered by a 40w amp, so seeing as the NS-03G had a claimed rating of 100w, this shouldn't have been a problem. However as mentioned earlier, it wasn't until I had the NS-03G's volume knob at maximum that I could hear any output from the sub. ... show more
Reviewed in the United States on April 9, 2023 by Jay R.

  • Buy the one with the power cord
First off, save yourself some money and buy the other model that comes with the power supply instead of buying them separately. Now for my impressions: No auto power off - this sucks I bought this to use on a passive sub. It works adequately for the situation but don't expect earth shattering bass. My sub provides subtle support to the sound stage, which is good, but it doesn't have a ton of volume even with the knob all the way up. If I had it to do over again, I would just buy the Monoprice powered sub. This solution is too much of a compromise in order to save $15 in my opinion. ... show more
Reviewed in the United States on February 15, 2023 by Justin Werth

  • Ok but weak
I have a Sony 12 inch subwoofer the belt N 91 amp in the back stopped working and would kick on and kick off kick on and kick off so I bought this being 100 W amp. I figured she’d be 10 watts more powerful, but it doesn’t hit nowhere as hard as the Sony, 90 it feels more like a 25-30 watt amp. I guess when you calculate how cheap it was and it does work. It sure is better than nothing. Just wish I had put out like the original ... show more
Reviewed in the United States on February 19, 2023 by william chaz criswell

  • Works great as a subwoofer amp
I had an old subwoofer unit from a Blu-Ray combo, and am using this amp to drive it. Does the job!
Reviewed in the United States on June 15, 2023 by Joe Neikirk

  • Surprisingly good!
I didn't know what to expect with the price, but this little guy packs a punch. Used it in a small stereo project for around the house. Powers a 150w 6 inch sub and boy does it work. If you're intention is for a home office or something small this will definitely fill the roll.
Reviewed in the United States on April 22, 2023 by Twills

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