---
product_id: 483690433
title: "Nobsound G2 PRO Hi-Fi 300W Subwoofer Audio Mono Channel Class D Power Amplifier"
brand: "nobsound"
price: "$566"
currency: NZD
in_stock: false
reviews_count: 5
category: "Nobsound"
url: https://www.desertcart.nz/products/483690433-nobsound-g2-pro-hi-fi-300w-subwoofer-audio-mono-channel
store_origin: NZ
region: New Zealand
---

# 300W max power output Adjustable gain & bass cutoff Built-in speaker protection Nobsound G2 PRO Hi-Fi 300W Subwoofer Audio Mono Channel Class D Power Amplifier

**Brand:** nobsound
**Price:** $566
**Availability:** ❌ Out of Stock

## Summary

> 🎵 Unleash deep, clean bass with power and precision — your sound’s new secret weapon!

## Quick Answers

- **What is this?** Nobsound G2 PRO Hi-Fi 300W Subwoofer Audio Mono Channel Class D Power Amplifier by nobsound
- **How much does it cost?** $566 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/483690433-nobsound-g2-pro-hi-fi-300w-subwoofer-audio-mono-channel)

## 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

- • **Powerhouse Performance:** Delivers a robust 300W output to drive passive or active subwoofers with ease.
- • **Tailored Audio Control:** Dual-level gain and bass frequency adjustment (40-300Hz) for a personalized Hi-Fi experience.
- • **Versatile Connectivity:** Switch between full frequency or dedicated subwoofer mode with PBTL/SUB switch for ultimate flexibility.
- • **Compact & Durable Design:** Sleek aluminum chassis fits seamlessly into any desktop or home audio setup without sacrificing style.
- • **Reliable & Quiet Operation:** Low distortion (THD 0.03%) and speaker protection ensure crystal-clear sound even at high volumes.

## Overview

The Nobsound G2 PRO is a compact, high-performance mono Class D amplifier delivering up to 300W of clean power. Featuring adjustable gain and bass cutoff, it supports both passive and active subwoofers with a dedicated SUB output and PBTL switch. Its durable aluminum build and built-in speaker protection make it ideal for Hi-Fi home and desktop audio systems, ensuring powerful, distortion-free bass that keeps your setup sounding professional and immersive.

## Description

Parameters: Max Power: 300W Full frequency response: 20Hz-20kHz(±3dB) The speaker matches the impedance: 4-8Ω THD: Output 1W @ 0.03% Working Voltage: DC24-35V SNR: ≥106dB Input sensitivity: 0.775V Product Dimension: L127*W118*H35MM Bass cutoff frequency range adjustment: 40-300Hz Net Weight: 0.5kG Slope of bass attenuation: -12dB Slope Package Size: L257*W215*H65MM Packing List: 1* G2 PRO Mono Power Amplifier 1* 32V/5A Power Supply

Review: The amp on my B&W ASW300 decided to kick the bucket, so gutted it and wired it as a passive, and after plugging the Nobsound G2 Pro, I'm back in action. I set it to use the max gain with the dip switches on the bottom. I adjusted my levels to the desired sound output and well that's it. The thing sounds real loud and had it running for four hours straight with loud bass, heavy music just to put it through the paces and did not disappoint. The unit doesn't even get more than barely warm. Highly recommended for anybody wanting to power a passive sub.
Review: I am using this as a mono amp for a sub and it's exceeded my expectations. I've had it more than a year without issues.

## Features

- With PBTL/SUB switch: convenient to use G2 PRO as full frequency amp or subwoofer amp, a SUB output is specially designed for active subwoofer. G2 PRO can connect to both passive and active subwoofers. And two G2 PRO can be used to drive left and right channel independently to avoid mutual interference.
- Max 300W output power: using TPA3255D2 amp chip and equipped with 32V/5A large power supply, enough to drive 320W passive speakers or subwoofers. It also has a good match with outdoor/ bookshelf/ computer/ desktop /ceiling /floor standing speakers.
- Best design and HiFi sound: with a gain switch to allow 2-level of output level setting (32/36 dB) and SUB frequency adjustment (40-300Hz). It also has built-in speaker protection circuit, low-pass filter to guarantee no audible noise even at high power output, SUB signal and amp can output at the same time to bring HiFi listening experience.
- Mini size with exquisite appearance: mono integrated class D amplifier, simple compact design but with powerful function, more fashionable and durable solid aluminum chassis, very suitable for HiFi home and desktop audio system use.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07TTMN51V |
| Best Sellers Rank | #1,612,069 in Electronics ( See Top 100 in Electronics ) #2,160 in Hi-Fi Amplifiers |
| Brand | Nobsound |
| Brand Name | Nobsound |
| Customer Reviews | 4.3 4.3 out of 5 stars (196) |
| Date First Available | 25 July 2020 |
| Item Weight | 500 g |
| Item model number | DZ072_UK |
| Manufacturer | no |
| Material | aluminium |
| Maximum Supply Voltage | 35 Volts |
| Minimum Supply Voltage | 24 Volts |
| Mounting Type | Surface Mount |
| Net Quantity | 1.00 Count |
| Number of Channels | 1 |
| Output Power | 300 Watts |
| Output Wattage | 300 Watts |
| Package Dimensions | 25.6 x 21.49 x 6.6 cm; 500 g |
| Specification Met | THD @ 0.03% |
| Voltage | 24 Volts (DC) |

## Product Details

- **Manufacturer:** no
- **Maximum Supply Voltage:** 35 Volts
- **Minimum Supply Voltage:** 24 Volts
- **Mounting Type:** Surface Mount
- **Voltage:** 24 Volts (DC)

## Images

![Nobsound G2 PRO Hi-Fi 300W Subwoofer Audio Mono Channel Class D Power Amplifier - Image 1](https://m.media-amazon.com/images/I/31+FtItp21L.jpg)
![Nobsound G2 PRO Hi-Fi 300W Subwoofer Audio Mono Channel Class D Power Amplifier - Image 2](https://m.media-amazon.com/images/I/512+E9WUNGL.jpg)
![Nobsound G2 PRO Hi-Fi 300W Subwoofer Audio Mono Channel Class D Power Amplifier - Image 3](https://m.media-amazon.com/images/I/51AWZ3GPcHL.jpg)
![Nobsound G2 PRO Hi-Fi 300W Subwoofer Audio Mono Channel Class D Power Amplifier - Image 4](https://m.media-amazon.com/images/I/51G9PserPWL.jpg)
![Nobsound G2 PRO Hi-Fi 300W Subwoofer Audio Mono Channel Class D Power Amplifier - Image 5](https://m.media-amazon.com/images/I/51Uteq25MKL.jpg)

## Questions & Answers

**Q: The amplifier comes with a 32v/5a power supply (160w) yet you claim a max power output of 300w; how do you produce more power out than is supplied?**
A: Someone answered here saying you can run a 48V power supply for more output.  Well yes you will get more output OF SMOKE! These units cannot withstand 48V power supply as the capacitors are only rated for 35V max and 35V max is clearly marked on the amplifier!   I measured 20V RMS clean sine wave driving a 2ohm load - that is about 200 watts RMS continuous... when they say 300 watts, that is some peak (instantaneous) rating but not continuous.  I got that measurement running the amp with the included 32V power supply.

**Q: It works for a 12" 450rms car subwoofer with dual 4 Ohms?**
A: Yes

**Q: Cómo conertarlo**
A: Supongo que hay varias maneras.. en mi caso lo hice desde la salida subwoofer preout de mi Amplificador (canal .1) al audio in del aparato. Luego las salidas deben ir conectadas con los cables del subwoofer que me quedaron cuando retire del parlante el amplificador dañado

**Q: Do i need a crossover for the passive subwoofer if i connect it to amp’s speaker output? is the sub cutoff of amp only pertains to sub output only?**
A: The low pass cross over knob only works for the speaker high level output and does not control the low level sub out

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by E***E on 28 February 2025*

The amp on my B&W ASW300 decided to kick the bucket, so gutted it and wired it as a passive, and after plugging the Nobsound G2 Pro, I'm back in action. I set it to use the max gain with the dip switches on the bottom. I adjusted my levels to the desired sound output and well that's it. The thing sounds real loud and had it running for four hours straight with loud bass, heavy music just to put it through the paces and did not disappoint. The unit doesn't even get more than barely warm. Highly recommended for anybody wanting to power a passive sub.

### ⭐⭐⭐⭐⭐ Review
*by A***R on 3 September 2025*

I am using this as a mono amp for a sub and it's exceeded my expectations. I've had it more than a year without issues.

### ⭐⭐⭐⭐⭐ Review
*by A***. on 3 February 2025*

Good sound easy to use value for money

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*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-02-10*