The single ended design based on Master 9
Class A PSUs built in
Discrete  Headphone amplifier / Preamplifier
3000mW at 25 ohm (Class A )
8000mW at 40 ohm
OCC and hi-end parts applied 

HI-FI SYSTEM COMPOSED BY THE VERY TIGHT DAC / PREAMPLIFIER / NFB 11 R2R HEADPHONE AMPLIFIER AND ADAM Audio T5V ACTIVE SPEAKERS.

SIGNAL CABLES INCLUDED IN THE KIT.

HI-FI SYSTEM COMPOSED BY THE VERY TIGHT DAC / PREAMPLIFIER / NFB 11 R2R HEADPHONE AMPLIFIER AND ADAM Audio T7V ACTIVE SPEAKERS.

SIGNAL CABLES INCLUDED IN THE KIT.

Real Balanced ACSS Pure Class A Preamp

HI-END SYSTEM COMPOSED BY DAC / PREAMPLIFIER / HEADPHONE NFB 28.38 AMPLIFIER AND ADAM Audio S2V ACTIVE SPEAKERS.

BALANCED SIGNAL CABLES INCLUDED IN THE KIT.

HI-END SYSTEM COMPOSED BY DAC / PREAMPLIFIER / HEADPHONE NFB 28.38 AMPLIFIER AND ADAM Audio S3V ACTIVE SPEAKERS.

BALANCED SIGNAL CABLES INCLUDED IN THE KIT.

XLR and ACSS inputs
Dual transformers separate power supply for L & R channels
8 pcs in total 1200W output transistors
125W @ 8 ohms output power

HI-END SYSTEM COMPOSED BY DAC / PREAMPLIFIER / HEADPHONE D-27 AMPLIFIER AND ADAM Audio S3V ACTIVE SPEAKERS.

BALANCED SIGNAL CABLES INCLUDED IN THE KIT.

HE-9
Regenerative Power Supply
Real Balanced ACSS design 
Preamp & Headphone amp

Real Balanced ACSS Non Negative Feedback Integrated Power Amp
Applied "Linear Fidelity" Technology
Soft Start Power Design

Real Balanced ACSS design 
Pure Class A  (9W @ 40 ohm)
Preamp & Headphone amp
Super Exponential Volume Characteristic
OCC and hi-end parts applied , no upgrade option necessary

Master-3 (2019 Edition)
Since 1st. July 2018

Real Balanced ACSS Non Negative Feedback Power Amp
Supports XLR and ACSS inputs
Applied "Linear Fidelity" Technology
Soft Start Power Design