Add to Favorites Seller

Store Category

Join Our Newsletter

Receive our email newsletters about new items and special promotions!

Sign Up Now !
HiFi Bluetooth 5.0 Digital Preamp Bass Audio Amp Class A Desktop Stereo Pre-Amp

Item description

Warm tips: for different usage requirements Douk Audio specially provides two versions:
 
L1 Version: silver chassis, 3 groups of RCA inputs and 1 group of RCA output.
 
L2 Version: black chassis, 2 groups of RCA and Bluetooth 5.0 (QCC3034 supports APTX-HD) inputs, 1 group of RCA output and 1 group of low frequency output (connect active subwoofers).
Features
  • Multiple Inputs and HiFi Clear Sound: with input switch knob, can switch multi-way input signals losslessly. As a preamp, it can greatly improve the sound quality, with wide frequency response, large dynamic, rich details, deep lows, sounds smooth and clear, providing excellent listening enjoyment .
  • Tone Control with Bypass Function: more smooth and delicate sound can be enjoyed by adjusting treble & mid(L1) & bass & SUB VOL (L2) knob, and bypass function(turn treble knob to the leftmost end) is added to turn off the tone control and enjoy original sound, adding much fun and higher playability.
  • Mature Circuit & High-quality Components:
For L2 version, QCC3034 Bluetooth chip, supports APTX-HD protocol, can achieve a range of up to 50-70ft (20-30m) without obstacles, lossless transmission with no delay.
 
Reasonable and concise layout, left and right channel are powered and amplified independently, no mutual interference.
 
2PCS NE5532 op amps are responsible for pre-amplification and tone control, 2PCS NE5532 for low frequency output circuit (for L2 Version), pluggable socket design, easy to upgrade other op amps to enjoy music of better quality.
 
Linear power supply, more smooth and much purer just like battery, the sound is much clearer and the reproduction is more accurate.
 
Pure class A positive and negative pressure multistage independent rectifier filter and anti-interference circuit design, and the output power is strong and stable.
  • Attractive Appearance: whole aluminum alloy case and pure aluminum knobs, looks more fashionable and durable, can match perfectly with audio players, DAC, computer, amplifier, headphone amp, active speakers, active subwoofers etc. to provide HiFi audio enjoyment.

Parameters

Model

L1

L2

Audio input

3 groups of RCA

2 groups of RCA / Bluetooth

Bluetooth chip

×

QCC3034

Bluetooth supported protocol

×

SBC/AAC/APTX/APTX-HD

Audio output

1 group of RCA

1 group of RCA / subwoofer output

Number of op amp

NE5532*2

NE5532*4
Tone control  Treble/Mid/Bass Treble/Bass

Subwoofer response range

×

5Hz-180Hz

Color

Silver

Black
  • Treble & Mid & Bass range: ±10db
  • Frequency response range: 20Hz-50KHz
  • SNR: 116dB @ 1KHZ
  • Distortion: <0.003%@1KHZ
  • Input impedance: 50KΩ
  • Output impedance: 600Ω
  • Working voltage: AC 100-120V / AC 220-240V
  • Dimensions(W*D*H): 240*150*47mm / 9.45*5.91*1.85in
  • Net weight: 1.5kg / 3.3lb
  • Package weight: 2.0kg / 4.41lb
Packing List
  • 1*Digital Preamp
  • 1*Bluetooth Antenna (for L2 version)
  • 1*Power Cord
  • 1*User Manual
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.
PushAuction