Master 1 can compatible with KRELL amplifiers .
It need an adapt signal cable, one side connect to Master 1 ACSS
output, another side connect to KRELL amplifier CAST input .
The ACSS output pins define:
Pin 1, GND
Pin 2, Hot
Pin 3, Cold
The KRELL amplifiers had lower gain than audio-gd Master
series amplifiers while CAST connect , so customers can custom
order the Master 1 have higher ACSS output gain if expect
connect to KRELL amplifiers .
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
Memorizes all settings and it could resume the last settings when
Master-1 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.
Advice: 1, Master-1
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-1 on other gear, place a paper or other insulating
material on top of other gear, because Master-1 has conductive aluminium
3, Attention must be given to matching suitable power cable and signal
4, Master-1 have 3 feet under bottom side for the best balance
state , if customers want 4 feet , please ask the custom order .
of our preamp and power amp from John Darko.
reviews in headfi.