--- product_id: 45551265 title: "Nobsound NS-03G SUB" brand: "nobsound" price: "€ 61.87" currency: EUR in_stock: true reviews_count: 13 category: "Nobsound" url: https://www.desertcart.at/products/45551265-nobsound-ns-03g-sub store_origin: AT region: Austria --- # Compact 2.7x1.3x3.54 in size 100W peak power output Smooth volume control knob Nobsound NS-03G SUB **Brand:** nobsound **Price:** € 61.87 **Availability:** βœ… In Stock ## Summary > 🎡 Elevate your bass game with compact power that commands attention! ## Quick Answers - **What is this?** Nobsound NS-03G SUB by nobsound - **How much does it cost?** € 61.87 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.at](https://www.desertcart.at/products/45551265-nobsound-ns-03g-sub) ## Best For - nobsound enthusiasts ## Why This Product - Trusted nobsound brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Powerful 100W Output:** Unleash deep, room-filling bass with high-efficiency TPA3116D2 chip technology. - β€’ **Ultra-Compact Design:** Fits seamlessly on your desktop or subwoofer enclosure without cluttering your space. - β€’ **Versatile Connectivity:** 3.5mm AUX input lets you easily link phones, TVs, and CD players for instant audio upgrades. - β€’ **Customizable Power Supply:** Choose your ideal 12-24V, 4A+ power source to tailor performance and reliability. - β€’ **Optimized for Passive Subwoofers:** Engineered exclusively for passive subs, delivering crystal-clear bass without distortion. ## Overview The Nobsound 100W Subwoofer Digital Power Amplifier is a sleek, high-performance mini amp designed exclusively for passive subwoofers. Powered by the advanced TPA3116D2 chip, it delivers robust 100W output in a compact form factor with smooth volume control. Featuring a 3.5mm AUX input, it easily connects to multiple audio sources. Note: requires a separate 12-24V, 4A+ power supply (not included). Perfect for professionals seeking a clean, powerful bass boost without bulky equipment. ## Description Buy Nobsound 100W Subwoofer Digital Power Amplifier Audio Mini Amp (Black): Amplifiers - desertcart.com βœ“ FREE DELIVERY possible on eligible purchases Review: Works very well - I have an old sub-woofer that I rebuilt and the amp plate was not working very well. I was looking to buy another amp plate and saw this product. Given the difference in price I decided to risk it and purchase this amplifier. I was surprised at how good it sounds and how easy it was to hook up. I took out the old amplifier plate and then put connectors with leads to the woofer on a wood plate. I put the this unit on top of the sub box and then connected to the main amplifier sub-woofer connection. I had to put an RCA splitter on the cable and then connected everything via an RCA to mini plug for the input. I used banana plugs for speaker connections to sub-woofer amp. The unit does not come with a power adapter but I had a 12v 6amp power adapter and it worked just fine. So far so good. Sound is clear with plenty of power for a 10 inch driver. I am going to order another one as I have another sub woofer project in the offing and will be using the Nobsound as the amp. I will update if I have any problems. Review: Great little and powerful woofer amp - NOTE: This is for woofer speakers that are not amplified and where your main amp does not provide an amplified woofer channel. This amp is doing a great job with the woofer of my sound system! The clarity is awesome and the volume is more than we need for our room! The pricing was very affordable. A couple of things for buyers: This amp requires a separate power supply - the list clearly says this but, of course, I missed that. You can use your own power supply, but since this vendor has a cheap power supply that works, I ordered it and it was there the next day - great service! Easy to setup the amp and power supply (took like 2 minutes) and the bass sound is outstanding! For tech geeks only: the instructions and the website have one MINOR spec contradiction: The amp supports woofer speakers that are as low as 2 ohms and as high as 8 ohms of impedance. The instruction page that comes in the box says it only supports 4 ohms to 8 ohms of impedance, not 2. I talked to the firm and 2 ohms is the correct spec ## 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. - 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. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B072KDNW3F | | Best Sellers Rank | #55,072 in Electronics ( See Top 100 in Electronics ) #316 in Audio Component Amplifiers | | Brand Name | Nobsound | | Customer Reviews | 4.0 out of 5 stars 873 Reviews | | Item Dimensions | 2.7 x 1.3 x 3.54 inches | | Item Weight | 0.2 Kilograms | | Item dimensions L x W x H | 2.7 x 1.3 x 3.54 inches | | Manufacturer | Nobsound | | Maximum Output Power | 100W | | Maximum Supply Voltage | 25 Volts (DC) | | Minimum Supply Voltage | 12 Volts (DC) | | Model | 4330353845 | | Mounting Type | On Your Desktop | | Number of Channels | 1 | | Output Power | 100 Watts | | Part Number | SUB&FR | | Specification Met | Industry Standards (Hifi) | | Unit Count | 1 Count | | Voltage | 25 Volts (DC) | ## Product Details - **Item dimensions L x W x H:** 2.7 x 1.3 x 3.54 inches - **Manufacturer:** Nobsound - **Maximum Supply Voltage:** 25 Volts (DC) - **Minimum Supply Voltage:** 12 Volts (DC) - **Voltage:** 25 Volts (DC) ## Images ![Nobsound NS-03G SUB - Image 1](https://m.media-amazon.com/images/I/71gJEu1KMJL.jpg) ![Nobsound NS-03G SUB - Image 2](https://m.media-amazon.com/images/I/8169-Tbt1-L.jpg) ![Nobsound NS-03G SUB - Image 3](https://m.media-amazon.com/images/I/71TkBIftDlL.jpg) ![Nobsound NS-03G SUB - Image 4](https://m.media-amazon.com/images/I/71kNwylhEeL.jpg) ![Nobsound NS-03G SUB - Image 5](https://m.media-amazon.com/images/I/71IBZqAZN6L.jpg) ## Questions & Answers **Q: Is it possible to buy replacement boards from the manufacturer? I dont need the housing.** A: Hello. We have boards for sale, sub version: https://www.amazon.com/dp/B07H337F4L?ref=myi_title_dp full frequency version: https://www.amazon.com/dp/B07H339BFP?ref=myi_title_dp **Q: What is the input jack? RCA? 3.5?** A: 3.5. I run rca into a 3.5 from my radio **Q: Power on/off creates a loud annoying pop. I would like to shut the output with a capacitor to suppress the pop. What capacitor value and voltage?** A: I was very concerned with the very loud pop and found the only solution was to use: https://www.amazon.com/gp/product/B097T2YNB4/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&th=1 I use this as the speaker cable and before shutting off the amplifier, I flip the switch on the speaker cable, disconnecting the speaker from the amp. It works perfectly. **Q: will this work with an input from a preamp?** A: Not sure. I used input from a receiver and that worked. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Works very well *by F***Z on January 28, 2018* I have an old sub-woofer that I rebuilt and the amp plate was not working very well. I was looking to buy another amp plate and saw this product. Given the difference in price I decided to risk it and purchase this amplifier. I was surprised at how good it sounds and how easy it was to hook up. I took out the old amplifier plate and then put connectors with leads to the woofer on a wood plate. I put the this unit on top of the sub box and then connected to the main amplifier sub-woofer connection. I had to put an RCA splitter on the cable and then connected everything via an RCA to mini plug for the input. I used banana plugs for speaker connections to sub-woofer amp. The unit does not come with a power adapter but I had a 12v 6amp power adapter and it worked just fine. So far so good. Sound is clear with plenty of power for a 10 inch driver. I am going to order another one as I have another sub woofer project in the offing and will be using the Nobsound as the amp. I will update if I have any problems. ### ⭐⭐⭐⭐⭐ Great little and powerful woofer amp *by C***N on December 18, 2025* NOTE: This is for woofer speakers that are not amplified and where your main amp does not provide an amplified woofer channel. This amp is doing a great job with the woofer of my sound system! The clarity is awesome and the volume is more than we need for our room! The pricing was very affordable. A couple of things for buyers: This amp requires a separate power supply - the list clearly says this but, of course, I missed that. You can use your own power supply, but since this vendor has a cheap power supply that works, I ordered it and it was there the next day - great service! Easy to setup the amp and power supply (took like 2 minutes) and the bass sound is outstanding! For tech geeks only: the instructions and the website have one MINOR spec contradiction: The amp supports woofer speakers that are as low as 2 ohms and as high as 8 ohms of impedance. The instruction page that comes in the box says it only supports 4 ohms to 8 ohms of impedance, not 2. I talked to the firm and 2 ohms is the correct spec ### ⭐⭐⭐⭐ Some differences between the Amazon specs and the specs that came with the product. *by T***. on September 19, 2025* The amp with the recommended power supply work quite well. I am satisfied with it and will keep it. It stays cool at high volumes (8-ohm load). However, here's a few points: (1) The info card states a Terminating Impedance: of 4-8 ohm load.. I think you should disregard the 2 ohm in Amazon spec. (2) They state the terminators are for Banana plugs, but you can connect bare wire by unscrewing the terminals to reveal holes in the posts that can accommodate up to 14 gauge wire. (3) Don't expect good sound anywhere close to 100w with the recommended power supply. (4) An 8-ohm load will sound good up to about 25 watts with the ported enclosure I have - plenty loud for a large room. Your mileage may vary. I have shared the 'manual' in the photo section. Hope this helps... ## Frequently Bought Together - Nobsound 100W Subwoofer Digital Power Amplifier Audio Mini Amp (Black) - Nobsound DC 19V 4.74A 90W Power Supply Power Adapter Charger Universal 100-240V 50/60Hz AC Input for Amplifier Laptop DAC - RCA to 3.5mm Mono, 6ft 3.5mm 1/8 inch Mono Male Plug to RCA Male Audio Cable Adapter, for Speakers, Subwoofer --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.at/products/45551265-nobsound-ns-03g-sub](https://www.desertcart.at/products/45551265-nobsound-ns-03g-sub) --- *Product available on Desertcart Austria* *Store origin: AT* *Last updated: 2026-07-26*