LITTLE DOT MKIV MK4 Headphone Amplifier

Little Dot Headphone Amplifier MKIV MK4

The Little Dot MKIV is the flagship headset amplifier of the brand.
It uses a Single Ended Push-Pull amplifier circuit in Class A based on JAN5654 tubes
These tubes are surrounded by quality components such as a potentiometer ALPS RK-27, capacitors Nichicon, Rubycon, WIMA, ERO ...

This amplifier can driver headphones from 32 to 600ohm without forcing thanks to its output capable of 45V peak-to-peak.
RCA outputs allow it to be used as a preamp by taking advantage of the Class A

In addition to this, this amp includes an externally accessible gain adjustment to best match the impedance of your headphones.
It is also possible to change the input tubes by EF92, CV131, WE403A / B, GE5654, M8100, CV4010, EF95, 6JI or compatible (Requires the addition of a jumper)

Specifications:

• SEPP (Single Ended Push Pull) OTL in Class-A
• Frequency response: 10Hz - 100kHz (-1dB)
• THD + N: 0.1% (100mW @ 300 ohm)
• Output Power
  • 500mW @ 300/600 ohm
  • 300mW @ 120 ohm
  • 100mW @ 32 ohm
• Power Consumption: 30W
• Adjustable gain: 3, 4, 5 or 10x
• Recommended load: 32 to 600ohm
• Input impedance: 50k ohm
• Preamp section:
  • Impedanceoutput: 600 ohm
  • Gain: 3 to 10x (linked to amp gain)
  • Voltage: 10V RMS
  • Input and output tubes active on output preamp
• Input Tubes:
  • 2x JAN 5654 (MKIV)
  • 2x M8100 / CV4010 (MKIVSE)
• Power Tubes:
  • 2x Soviet 6H30EH (MKIV)
  • 2x 6H30PI Gold-pin (MKIVSE)
• Aluminum chassis
• Dimensions: 320x220x143mm
• Weight: 3.5kg
• Warranty 1 year
• Comes with a 6.3mm to 3.5mm jack adapter