Fully balanced design, the gain stages and pre-driver stages working on class A , built by discrete analog stages without any OPA and couple caps in the signal channels.
The output transistors stages working on high idle current state . The Diamond Cross output stage design can avoid "switch distortion" as good as the class A amp .
Non- feedback ACSS analog amps .
Four channel 99 steps digitally controlled relay-based volume control to avoid channel imbalance and improve sound quality.
5 channel analog inputs:  RCA X2, XLR X2, ACSS X1
Applies 24 pieces of ON Semiconductor  “the King of transistors” MJL4281/4302. Supports 250W X2 (8 Ohms) output.
The capacitance of the whole machine reaches as high as 140,000 uF, Two 750W (Total 1500W) core transformers. Separate power supplys for the right channel and left channel.
A total of 4 groups of high-quality class A parallel connection PSU power supply for the gain stages. To achieve high S/N, the control circuit is powered with separate regulator.
Applies all audiophile grade components, including DALE resistors, WIMA caps, custom order NOVER (UK brand) caps, all audiophile grade input & output sockets and gold IEC socket. Applies the round-corner style chassis which has lower syntony, or vibration. Between the transformers and signal amps there is a thick metal board to avoid disturbing the signal amps from transformers.
Memorizes all settings and it could resume the last settings when power on.

Sound Characteristics:  Very neutral and neuter, truly delivers the sound of source, doesn't add any color. Before you make a purchase with this amplifier, you must make sure you have high class source gear.
Warning:    
                     1, Master-10 has extremely high fidelity; its SQ is neutral. It can show how good or how bad a recording or source is.
                     2, It is better not to stack gear on top of each other, if necessary to stack Master-10 on other gear, place a paper or other insulating material on top of other gear, because Master-10 has conductive aluminium feet.
                     3, Attention must be given to matching suitable power cable and signal cable.
                     4, Master-10 have 3 feet under bottom side for the best balance state , if customers want 4 feet , please ask the custom order .

A review of our preamp and power amp from John Darko.
http://www.digitalaudioreview.net/2011/09/audio-gd-c39-mk3-pre-and-c10-se-power-acss/