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Return-Class A Stereo Preamp 4-Way Lossless Audio Pre-Amplifier w/Tone Control

Item description

  Return Item. Ordered by Mistake. IF ANY QUESTIONS UPON RECEIVING, PLEASE CONTACT US ASAP. Thank you!  

Features
  • 4 Groups of Stereo RCA Input: can switch multi-way input signal losslessly by the input switch. As a preamp, it can greatly improve the sound quality, with large dynamic, rich details, smooth and clear sound.
  • With Tone Control: more smooth and delicate sound can be enjoyed by adjusting treble, mid and bass knob, and bypass function is added to turn off the tone control and enjoy original sound, adding much fun and higher playability.
  • Mature Circuit & Components: reasonable and concise layout, left and right channel are powered and amplified independently. 4PCS OPA1611 op amps in each channel to reduce the internal resistance and responsible for pre-amplification and tone control, the sound is much purer and the reproduction is more accurate.
  • Unique Design: class A power supply to guarantee the sound is warm, and pluggable socket design makes convenient to change different op amps to enjoy different sounds.
  • Attractive Appearance: whole aluminum alloy case and pure aluminum knobs, looks more fashionable and durable, providing both visual and auditory enjoyment.

Parameters
  • Audio input: 4 groups*stereo L/R RCA
  • Audio output: 1 group*stereo L/R RCA
  • Color: silver
  • Frequency response range: 2Hz-40KHZ
  • SNR: 115DB @ 1KHZ
  • Input impedance: 50KΩ
  • Output impedance 600Ω
  • Distortion: <0.003% 1KHZ
  • Op amp: 4PCS OPA1611
  • Working voltage: AC 100-120V / AC 220-240V
  • Dimensions(W*D*H): 327*210*55mm / 12.87*8.26*2.16in
  • Net weight: 2.0kg / 4.40lb
  • Package weight: 3.0kg / 6.61lb

Packing List
  • 1*HiFi Preamp
  • 1*Power Cord
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).

If you are satisfied with our products and service please leave a 5-star StarStarStarStarStar. Positive feedback rating Feedback is very important to us just like our lives, please DO contact us before you leave a neutral Neutral feedback rating or negative Negative feedback rating feedback, we will provide better solutions until you are satisfied.

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
London(UK)Monday-Friday01:00 AM - 10:00 AM
Paris(FR)Monday-Friday02:00 AM - 11:00 AM
 
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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