Little Dot MK I+ Portable Headphone Amplifier

Current production Little Dot models and pricing

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Joined: Mar 14th, '06, 01:25

Little Dot MK I+ Portable Headphone Amplifier

Postby DavidZheZhe » Jan 10th, '10, 10:23

Little Dot MK I+

  • Little Dot MK I+ (Standard Edition): Available!
  • Little Dot MK I+ (Gold Edition): Available!

  • Little Dot MK I+ (Standard Edition): 149 USD
  • Little Dot MK I+ (Gold Edition): 179 USD

  • North America (USA, Canada): 25 USD
  • Western Europe: 29 USD
  • East Asia: 19 USD
  • Please inquire for other destinations


The successor to the Little Dot MK I, the new Little Dot MK I+ takes advantage of American National Semiconductor’s newest offerings in ultra-low distortion circuit components: LME49710HA (Gold edition) or LME49720NA (Standard) high fidelity operational amplifier and the LME49600TS high performance current buffer. The new power supply consists of two 3.7V 700mA/h Lithium-Ion battery to provide up to 30 hours of high current, ultra-low distortion power to your headphones. Circuit stability and reliability over the previous Little Dot MK I has been markedly improved as well. The Little Dot MK I+ also has exceptional compatibility with a wide variety of IEMs, earphones, and full-sized headphones due to its user-selectable three gain settings, as well as output current control via internal jumpers. When jumper caps are set in place, output current increases by 80%, dramatically improving dynamics, impact, and low frequency response with the trade-off of lower battery life.

There are two versions of the Little Dot MK I+, the Standard Edition and the Gold Edition. The Standard Edition uses the LME49720NA op-amp in the pre-amplifier stage. The Gold Edition boasts dual LME49710HA op-amps in the pre-amplifier stage for superior dynamic range and current delivery.

Technical Specifications:

  • Line Input: 3.5mm (1/8") mini-stereo
  • Headphone Output: 3.5mm (1/8") mini-stereo
  • Frequency Response: 5 Hz (-0.6dB) to 200KHz (-0.3db)
  • THD+N: 0.0010% (1V @ 1000 Hz)
  • Suitable Headphone Impedance: 8 - 300 ohms
  • Input Impedance: 20K ohms
  • Power Output: 200mW (32 ohms)
  • Gain Factor: 1, 2, 4x (User Selectable)
  • Battery Life: up to 30 hours per charge
  • Battery Overcharge Protection
  • Universal Voltage AC Charger/Adapter included (Type B plug)
  • Measurements:
  • Metric: 95 mm (length) by 70 mm (width) by 24 mm (height)
  • English: 3.74 inches (length) by 2.75 inches (width) by 0.94 inches (height)
  • Weight: 192 g (includes internal battery)
  • 1 Year Little Dot Warranty
  • In addition to direct purchase (Email us), also available on EBAY for our customer's convenience. Please search for Little Dot Amplifier sold under EBAY seller Davidzhezhe


Posts: 1720
Joined: Mar 14th, '06, 01:25

Little Dot MK I+ Reference Guides

Postby DavidZheZhe » Jan 12th, '10, 08:48

Space reserved for Reference Guide download links

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