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Single-Ended Class A Stereo Amplifier HIFI Integrated Amp for Speakers 42W x2

Item description

Features
  • Warm and Natural Sound: Built on a single-ended Class A topology, the NS-02G PRO delivers low-distortion output with natural warmth and realism in vocals and instruments. Its smooth, immersive soundstage is perfect for long listening sessions in cozy setups or dedicated HiFi spaces.
  • Fully Symmetrical Circuit: The fully symmetrical amplifier circuit reduces phase distortion and maintains signal integrity throughout the frequency range. This ensures cleaner output, improved imaging, and greater musical nuance, especially in acoustic and vocal-rich recordings.  
  • Powerful Enough for Most Speakers: With RMS output up to 30Wx2 (8Ω) / 42Wx2 (4Ω) in Class A operation, it can effortlessly drive most bookshelf and floor-standing speakers. Enjoy full-bodied sound with punchy bass and detailed mids, whether you're spinning vinyl, streaming, or playing CDs. 
  • Audiophile Components: With Toshiba 2SA1943/5200 transistors, 150W copper toroidal transformer, ALPS potentiometer, and 40,000μF capacitors, it ensures stable current, deeper bass, and wider soundstage. Gold-plated RCA jacks preserve purity and pluggable op-amps allow higher playability.  
  • Flexible Inputs and Safety Protection: Dual RCA inputs with an input switch support quick source switching and comparing without plugging and unplugging cables. Built-in protection systems like DC protection, surge-protected delay, and overheat protection, keep both your amp and speakers safe.  

Q: How can I replace the op-amps?
A: The swappable NE5532 op-amps are located beneath a relay module. You’ll need to remove a few screws to access and replace them. Please proceed carefully or contact us if unsure.  

Parameters
  • Brand: Nobsound
  • Model: NS-02G PRO
  • Audio input: 2 groups of RCA
  • Audio output: Banana speaker jacks
  • Output power (RMS): 30W*2@8Ω; 42W*2@4Ω
  • Frequency response: 30Hz-20kHz  
  • THD: ≤1%
  • SNR: ≥86dB (A-weighted)
  • Rating input level: 500mV
  • Rating load impedance: 4Ω
  • Power consumption: ≤120W
  • Input voltage: AC 100-120V / 220-240V, 50/60Hz
  • Dimensions (W*D*H): 457*310*140mm / 12.99*8.27*2.76in
  • Net weight: 5.6kg / 12.35lb
  • Package weight: 6.5kg / 14.33lb

Packing list
  • 1* NS-02G PRO
  • 1* Power Cord
  • 1* Instruction Manual
Safe and secure payment by PayPal.
  • The items are located in US, and will be shipped within 1 working day, 2-6 working days to deliver.

Free Return Within 30 Days

We provide free return with 30 days for all items you bought on eBay, full refund and return shipping will be provided.

1-year warranty is provided for all items(Excluding: 1. Man-made damage or misuse. 2. Audio accessories and consumables such as vacuum tubes).

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Douk Audio / Nobsound Studio was founded in 2013 in Shenzhen CHINA, we own several brands including Douk Audio / Nobsound / Little Bear etc.
 
As a professional audio company, we are dedicated to design and produce the best products at the lowest prices to make HiFi affordable.
 
We will spare no efforts to bring great products and service for customers and extremely to improve our customers’ listening experience.
Please don't hesitate to contact us if you have any questions or comments about our items. And our working time is from Monday to Friday between 9:00 am to 06:00 pm(Beijing Time), which means we can keep on-line at:
 
 Working time

Beijing(CN)Monday-Friday09:00 AM - 18:00 AM
New York(US)
Sunday to Thursday08:00 PM - 05:00 AM
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During holiday, please allow us to response you early next week. Please don't leave any negative / neutral feedback or make dispute/claim on our non-working time, thank you for your understanding and cooperation.
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