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1 Year Local Warranty (subjected to Audio-GD T&C, additional repair guarantee provided.)

Audio-GD Master-9P MK2 (Smooth/Neutral) Dual Mono Balanced Class A Headphone Amplifier & Integrated Power Amplifier

* Option *
Master-9PS (Smooth) MK2 = For who like the sound warm and smooth.
Master-9PN (Neutral) MK2 = For who like the sound neutral and transparency.

Real dual mono design.
Fully balanced design, the gain stages and pre-driver stages work in class A, built with discrete analog stages without any OPA or coupling caps in the signal channels.
The output transistor stages have supper excellent linear; it sounds like the pure class A design but without the high heat of the pure class A design.
Applies 8 pieces of ON Semiconductor transistors, every piece has 15A/230W performance (Master 9P MK2N). Supports 70W X2 (8 Ohms) output, 14W X2 (40 ohms) .
The capacitance of the whole machine reaches as high as 100,000 uF, with two circle cores in total 600W power, which is larger than some 200W power amps.
A total of 4 groups of high-quality class A parallel connection PSU's supply the gain stages.
Two gain modes with 100 steps exponent character volume control, high gain has 34DB, low gain has 20DB, no problem drive any high or low sensitivity headphone and speaker.
5 groups input: RCA X2, XLR X2, ACSS X1
Speaker Output: 1 pair
Headphone Amp Output: 3pins XLR X2, 4pins XLR X1, 6.3MM X1
Headphone Output Options with Neutral and simulate Vacuum Sound for customer (selectable on front panel)

S/N Ratio: >110DB (Full scale)
Gain: 34 DB (high gain), 20DB (low gain)
Output (Speaker): 70W*2 @ 8ohm, 100W*2 @ 4ohm
Output (Headphone): 35W*2 @ 15 ohm, 20W*2 @ 25 ohm, 14W*2 @ 40 ohm, 6W*2 @ 100 ohm, 2W*2 @ 300 ohm, 1W *2 @ 600 ohm
Input sensitivity: 0.55V RMS @ XLR, 2mA RMS @ ACSS
Input impedance: 47K ohm @ RCA, 94K ohm @ XLR, <10 ohm @ ACSS
THD+Noise:
THD+N at 8 ohms 20W (<0.055% at 1K, <0.002% at 20KHz, 2VRms XLR input)
THD+N at 8 ohms 60W (<0.055% at 1K, <0.005% at 20KHz, 2VRms XLR input)

Channels cross: >-120DB
Channels imbalance: < 0.05DB
Power Requirement: 220-240V AC 50/60 Hz
Power Consumption: 50W static @240V
Transformer Power: 600W (2 transformers)
Package Weight: approx. 21KG
Dimensions: (W)430mm X (L)485mm X (H)123mm (Fully aluminium)