choose the output models in Master-8 :
Master-8 have a switch on rear can select between high power
model and low power model base on different headphones request .
( Before select , Must power off and waiting least 10 seconds )
, both models are working on without "switch distortion" Class A
Master-8 have a switch on rear can select the gain boost on XLR
and RCA input model for some low output level source can
cooperate with Master-8 perform high power output.
select please lower the volume at first )
High and low power output model select by users
Fully balanced class A design built by discrete analog stages without any OPA and couple caps in the signal channels.
Non- feedback ACSS analog output stage .
Uses three R-core transformers (135W total) separate power supplys
for the digital part , right channel and left channel.
More than 50,000uf audio grade NOVER capacitors are used to ensure
ample and smooth power feed.
A total of 8 groups of high-quality class A parallel connection PSU,
four double-stages for dedicated DC supply.
To achieve high S/N, the control circuit is powered with
Uses most Hi-end grade parts and exact match transistors.
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
Preamp output :
XLR / RCA / ACSS
Headphone amp output:
4pins XLR X1 / 3pins XLR X2 /
Memorizes all settings and it could resume the last settings when
Master-8 can work with all sources and power amps in the world, but its ACSS output can only work with
audio-gd Master series power amps.
Master-8 Preamp/HP button select between RCA / XLR of the preamp
and headphone amp output, the ACSS signal output always
Master-8 is a class A amp, don't cover the vents please .
Master-8 have 3 feet under bottom side for the best balance
state , if customers want 4 feet , please ask the custom order .
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-8 on other gear, place a paper or other insulating
material on top of other gear, because Master-8 has conductive aluminium
3, Attention must be given to matching suitable power cable and signal
A review of our
preamp and power amp from John Darko.
reviews in headfi.
Modification guide on
headphone jack for 4-pin balanced headphone output.
Click here to read:
Parts for the modification is USD30. (Includes one female 4-pin plug
and one male 4-pin plug, some tapes and some WBT tin solder.)