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HiFi Valve Tube Headphone Amplifier Home Stereo Desktop Audio Preamp for Amp

Item description

 
Notice: very suitable for headphone below 100 sensitivity. If your headset sensitivity above 100db, please contact us to buy a impedance connector(15USD) to ensure its excellent performance.
Features:
  • Adopting class A SEPP (single-ended push pull) OTL circuit, the Little Dot MK II greatly increases sound quality, dynamic range, output impedance, and harmonic distortion.
  • With a gain control of 3, 5, and 10 via internal DIP switches for fine-tuning so it has good match with any headphone whether it be 32 ohm or 600 ohm.
  • The drive tube 6JI can be replaced by WE403A/B, GE5654, M8100, CV4010, EF95 etc. at its factory jumper setting. And with jumper pins shorted, it can be replaced by EF92, CV131 and so on.
  • High-end materials are used for better performance: ALPS-16 potentiometer, NICHICON filter capacitor, WIMA / ERO coupling capacitance, etc;
  • The shell is made of a secondary oxidation process, better surface finish and texture. The preamp output circuit, reducing the output impedance, with a load capacity stronger.
Specifications:
  • Working oltage: 100-240V / 50-60Hz
  • Audio input: stereo RCA
  • Audio output: 1/4" headphone jack
  • Driver Tube: 6JI
  • Power Tube: 6N6
  • Frequency Response: 20HZ - 50KHz (-1dB)
  • THD+N: 0.1% (50mW 300 ohm)
  • Headphone Impedance: 32 - 600 ohm
  • Input Impedance: 50K ohms
  • Pre-Amplifier Output Impedance: 600 ohms
  • Pre-Amplifier Gain: 3-10x (controlled by gain switch)
  • Pre-Amplifier Voltage: 10V RMS
  • Power Output:
300mW 300 ohms
200mW 120 ohms
100mW 32 ohms
  • Dimensions(L*W*H): 210*110*130mm / 8.26*4.33*4.18in
  • Weight: 2.5 kg / 5.5 lb
Packing List
  • 1*Tube Headphone Amp
  • 2*6J1 Tube for Spare
  • 1*Power Cord
  • 1*RCA Cable
  • 1*6.35mm to 3.5mm Headphone Converter
 
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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