---
product_id: 45551265
title: "100W Subwoofer Digital Power Amplifier Audio Mini Amp (Black)"
brand: "nobsound"
price: "€ 64.75"
currency: EUR
in_stock: true
reviews_count: 11
category: "Nobsound"
url: https://www.desertcart.hr/products/45551265-100w-subwoofer-digital-power-amplifier-audio-mini-amp-black
store_origin: HR
region: Croatia
---

# 100W peak power output Supports 2-8Ω passive subwoofers Smooth analog volume control 100W Subwoofer Digital Power Amplifier Audio Mini Amp (Black)

**Brand:** nobsound
**Price:** € 64.75
**Availability:** ✅ In Stock

## Summary

> 🎵 Feel the bass, not the bulk — power your subwoofer like a pro!

## Quick Answers

- **What is this?** 100W Subwoofer Digital Power Amplifier Audio Mini Amp (Black) by nobsound
- **How much does it cost?** € 64.75 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/45551265-100w-subwoofer-digital-power-amplifier-audio-mini-amp-black)

## 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

- • **Powerful 100W Output:** Unleash deep, room-filling bass with high-efficiency TPA3116D2 chip technology.
- • **Compact & Sleek Design:** Super mini size with a solid black shell fits effortlessly on your desktop or subwoofer.
- • **Customizable Power Supply:** Choose your ideal 12-24V, 4A+ power adapter for tailored performance and reliability.
- • **Universal AUX Connectivity:** Easily connect phones, TVs, or CD players via 3.5mm AUX input for versatile audio sources.
- • **Wide Impedance Compatibility:** Supports passive subwoofers from 2Ω to 8Ω, perfect for upgrading thrift store finds or existing setups.

## Overview

The Nobsound 100W Subwoofer Digital Power Amplifier is a compact, high-performance mini amp designed exclusively for passive subwoofers. Featuring the advanced TPA3116D2 chip, it delivers robust 100W output with smooth volume control and supports a wide impedance range (2-8Ω). Its sleek, desktop-friendly design and universal 3.5mm AUX input make it a versatile upgrade for audiophiles seeking deep, clear bass without the clutter of bulky equipment. Note: requires a separate 12-24V, 4A+ power supply for optimal operation.

## Description

Buy Nobsound 100W Subwoofer Digital Power Amplifier Audio Mini Amp (Black): Amplifiers - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Finally, some bass! - Been looking around to power my unpowered sub woofer that I picked up for cheap at a thrift store. It breathed new life into the sub, and works great now. It completed our 5.1 surround system. Plenty of power - just make sure you have a power adapter that'll work with it. The power cord that I had on hand is a bit underpowered, but gives us plenty of bass.
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 | #29,128 in Electronics ( See Top 100 in Electronics ) #151 in Audio Component Amplifiers |
| Brand | Nobsound |
| Customer Reviews | 4.0 4.0 out of 5 stars (856) |
| Date First Available | June 12, 2017 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 7 ounces |
| Item dimensions L x W x H | 2.7 x 1.3 x 3.54 inches |
| Item model number | 4330353845 |
| Manufacturer | Nobsound |
| Maximum Supply Voltage | 25 Volts (DC) |
| Minimum Supply Voltage | 12 Volts (DC) |
| Mounting Type | On Your Desktop |
| Number of Channels | 1 |
| Output Power | 100 Watts |
| Product Dimensions | 2.7 x 1.3 x 3.54 inches |
| Specification Met | Industry Standards (Hifi) |
| 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

![100W Subwoofer Digital Power Amplifier Audio Mini Amp (Black) - Image 1](https://m.media-amazon.com/images/I/71gJEu1KMJL.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

### ⭐⭐⭐⭐⭐ Finally, some bass!
*by L***A on September 24, 2025*

Been looking around to power my unpowered sub woofer that I picked up for cheap at a thrift store. It breathed new life into the sub, and works great now. It completed our 5.1 surround system. Plenty of power - just make sure you have a power adapter that'll work with it. The power cord that I had on hand is a bit underpowered, but gives us plenty of bass.

### ⭐⭐⭐⭐⭐ 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

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-02-03*