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HiFi Vacuum Tube Preamp Stereo Bluetooth Receiver USB Player Desk Headphone Amp

Item description

Features

  • Tube preamp&Bluetooth Receiver&Headphone Amp: Support Bluetooth/Stereo RCA/U-disk inputs, and Stereo RCA/Balanced XLR/Headphone jack outputs,  compatible with Phones, computers, CD  players etc.. And U-disk supports MP3/WMA/APE/FLAC/WAV format.

  • Built-in tube design&HiFi components: Pluggable Soviet Union 6H3N tubes filter all digital feelings, the sound is warm and mellow, clear and delicate. Adopt ESS9023 decode chip that dynamic can arrive 112dB, classical NE5532 op-amp, can drive most headphones easily. 

  • Independent tone knob and input selector: With separate control of treble and bass, the specific proportion components in high and low frequency can be adjusted to present music with rousing highs and deep lows. Also with the input switch knob, 3 kinds of inputs can be selected freely.

  • Fashionable and unique design: Vacuum tubes and VU meter are warm and retro; Aluminum alloy buttons, with remote control, gold-plated RCA ports, durable and convenient; compact size, suitable for decorating desktops, easy to experience visual and auditory feast.

Warm Tips
1. All outputs (Stereo RCA/XLR/3.5mm Headphone Jack) can output at the same time.

2. Default Soviet Union 6H3N tube, can be replaced by Beijing 6N3 / Soviet Union 6H3N-E etc.

3. Remote control without battery(CR2025), please prepare it by yourself.

Parameters

  • Audio input: Bluetooth/Stereo RCA/U-disk
  • Audio output: Stereo RCA/XLR/3.5mm Headphone Jack
  • U-disk support formats: MP3/WMA/APE/FLAC/WAV
  • U-disk support max capacity: 128G
  • Frequency response: 20Hz-20kHz
  • Treble&Bass range: ±6dB
  • THD: 0.04% typically
  • SNR:＞100dB(20Hz-20kHz)
  • Input sensitivity: 0.775V
  • Headphone output impedance: 32-300Ω
  • Headphone max power: 160mW/32Ω
  • Working voltage: 12V
  • Dimensions(W*D*H): 145*85*85mm / 5.71*3.35*3.35in
  • Package dimensions(W*D*H): 250*185*120mm / 9.84*7.28*4.72in 
  • Net weight: 575g / 1.27lb
  • Package weight: 900g / 1.98lb

Packing List

  • 1*Tube Preamp
  • 1*Power Adapter
  • 1*Bluetooth Antenna
  • 1*Remote Control(without CR2025 battery)
Safe and secure payment by PayPal.
Please leave VALID TELEPHONE NUMBER which is necessary and very important.
 
Customs Clearance
We are NOT responsible for any customs duties fee.
We are NOT responsible for any import tax or customs delay.
 
Most item will be shipped within 2 working days. For package less than 2KG, we use Airmail (10-25 days to most countries) and for package over than 2KG we use Expedited Service such as DHL, UPS and FEDEX (5-8 days to most countries). 

Free Return Within 30 Days

We provide  return within 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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