SOUGA - Precisely delineate the magical moment between every fading note; the sophisticated world of exquisite sound

A stereo amplifier which deliver the best of 2A3.

Original Parts

Silver Output Transformers

Rich and direct sound is obtained with using pure silver winding and multi-layer, multi-compartment structure. Winding are all done by skillful technician hands using pure silver wires.

Silver Capacitors

Silver capacitor which use pure silver foil as electrode. It is specially designed to prevent the potential oscillation with the foil, which can easily generate muddy sound when lignal surge from low to high level.
All silver foil capacitors are Audio Note hand made.

Original Silver Wire "SSW"

All conductor materials are pure silver. In order to supress the unwanted vibrations, natural silk is used and twisted around the silver conductor. It works as an insulating layer between the silver wires and the exterior PVC jacket.


  • Newly developed driver circuit unleashed the full potential of 2A3 which had never been achieved.
  • High quality handcrafting with module style amplifier sections. Kondo original parts and silver wires are adopted.
  • Parallel single ended circuit to get the best of both sound quality and useful power.
  • Full copper chassis is used to realize lively and open sound.


Product 2A3 Parallel single ended stereo power amplifier
Rated Power 8W + 8W
Frequency Response 8Hz ~ 35kHz (+0dB, -3dB)
Input / Impedance 1pair / 100kΩ(unbalanced)
Output speaker 4Ω or 8Ω preset in the factory
Vacuum tube 2A3×4
Power consumption 140W
Dimension 430mm(W) 233mm(H) 314mm(D)
(excluding protrusions)
Weight 34kg

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