Little Dot MKIII Tube Headphone Amplifier


"Instead of a single cheap tube that gives off muddled sound, the Little Dot MKIII features four tubes: two dedicated input tubes and two dedicated output tubes.

Letting your left and right audio channels enter through separate RCA ports and pass through channel specific input and output tubes before joining up at the headphone jack, you get a clear signal on both sides with little to no crossover.

Encased in solid aluminum, this headphone amp features solid metal construction throughout the entire device.

And in case you’re also looking for a partner for your speakers, the Little Dot MKIII Headphone Amplifier can also be used as a preamp via the RCA outputs on the back."

Standout Features:
• Delivers a smooth, non-fatiguing sound with no hint of dynamic compression or imaging fuzz
• Adds in user-tweaking options such as two gain switches to delivery maximum compatibility with all headphones, regardless of impedance or sensitivity
• Wider range of driver tube-rolling, including the EF92, CV131, WE403A/B, 5654, M8100, CV4010, EF95, 6JI as well as all equivalents to these vacuum tubes
• Power Tubes: 2x Soviet 6H6N

Little Dot MKIII Tube Headphone Amplifier - Manual

SEPP (Singled-ended Push Pull) OTL in Class-A

Frequency response:
12 hz~100 Khz (-1dB)

0.15% (80 mW @300 ohm)

Power Output:
350 mW @ 300/600 ohm
300 mW @ 120 ohm
100 mW @ 32 ohm

Power Consumption:
30W (228V x 0.130A)

Variable Gain:
3,4,5, or 10x

Recommended Load Impedance:
32 ohm ~ 600 ohm

Input Impedance:
50K ohms

Pre-Amplifier Output Impedance:
600 ohm

Pre-Amplifier Gain:
3-10x (also controlled via gain switches)

Pre-Amplifier Voltage:

Pre-Amplification circuit includes both driver and power tubes
Driver Tubes:
2x RTC5654

Power Tubes:
2x Soviet 6H6N

High quality aluminum chassis
Dimensions (English):
10.6 inches deep by 6.9 inches wide by 4.8 inches

Dimensions (Metric):
270mm deep by 175mm wide by 123mm high

6.6 lbs or 3 Kg

Please click here for detailed specifics regarding our specialized packing process that separates us from the rest.



Original Box





Not Applicable


Yes - Power

Physical Condition


Working Condition


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