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SOLD: FS: Little Dot Mk II Headphone Amplifier (HEAD-FI)

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Item: Little Dot Mk II Headphone Amplifier
Location: Adelaide
Price: $SOLD
Item Condition: Mint
Reason for selling: Selling head-fi rig
Payment Method: Pickup, EFT, Cash, Paypal (buyer pays all transaction fees & postage)
Extra Info:

 

Great condition and one of the best value headphone amplifiers available. Australian variant with 220v power supply. Upgraded Value Electronic CV4010 KQDD/K and 6H6 VIII tubes.

 

The device has a single volume knob on the front along with a blue LED and of course, the 6.3mm port. At the back you can find the input and output RCA pots as well as the power button. The specifications of the amp are as follows:

 

  • Input: Gold-Plated Unbalanced Phono (RCA) Jacks
  • Output: 1/4" Gold-Plated Stereo Headphone out
  • Driver Tubes: 6JI
  • Power Tubes: 6N6
  • Frequency Response: 20HZ - 50KHz (-1dB)
  • THD+N: 0.1% (50mW into 300 ohms)
  • Suitable Headphone Impedance: 32 - 600 ohms
  • Pre-Amplifier Output Impedance: 10K ohms
  • Power Output:
    • 300mW into 300 ohms
    • 200mW into 120 ohms
    • 100mW into 32 ohms
  • Average Power Usage: 28 watts
  • Dimensions: 210mm (length) by 110mm (width) by 130mm (height)
  • Weight: 2.5 kg or 5.5 lbs.

 

The Little Dot MK II boasts a SEPP (single ended push pull) circuit (in similar vein to the rest of the MK-series tube amplifiers) greatly increases sound quality, dynamic range, output impedance, and harmonic distortion. The Little Dot MK II also provides gain control of 3, 5, and 10 via internal DIP switches for fine-tuning so you can maximize synergy with almost any headphone you have, whether it be 32 ohms or 600.

 

Some cheap tube amps have what is called a hybrid design, where the power is provided by a transistor based circuit and the driver circuitry is tube based. Examples of these designs are the headphone amps with only a single vacuum tube (the driver tube). Not only does the Little Dot MK II have a fully tube based design (both power and driver elements are tube based) it actually has independent circuitry for the left and right channels.

 

So essentially, you have 1 power tube and 1 driver tube for the left channel and 1 power tube and 1 driver tube for the right channel. This is called an SEPP design (think of it as 2 + 2 design).

 
Photos:

 

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F2D3521B-43E8-46A5-81FE-A513C37ED21C.jpeg

Edited by alexb

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