e high precision G-01X master clock generator adopts new technologies such as
“Wide Range Clock Buffer Amplifiers”, “Adaptive Zero Ground” circuits,
and a high precision rubidium oscillator
to attain the very best in musical expression from your digital audio system.
PROUDLY MADE IN TOKYO
G-01X
Master Clock Generator
Master Clock Generator
A 'clock' is a pulse signal that is used as a reference signal for all digital
circuits. Every piece of digital gear has an on-board clock oscillator, and a
high-quality clock is vital for precise, jitter-free signal processing.
The G-01X master clock generator is an external clock device designed to
supply atomic precision clock to digital devices (such as a transport, D/A
converter, Super Audio CD player, or network audio player) equipped with
dedicated input terminals. The G-01X can supply clock signals with a
significantly higher degree of purity and stability than clocks generated by
connected devices themselves, and thereby significantly improves the
sound quality.
Ultrahigh Precision Rubidium Oscillator
An extremely high precision American-made rubidium oscillator with a
frequency precision of ±0.05 ppb or ±0.00005 ppm is used as the core of
this extraordinarily accurate timing device. This oscillator module has been
manufactured to ESOTERIC’s demanding specifications with sound
quality and stability being given top priority. The sound quality one would
expect from a high end model has been achieved.
“Wide Range Clock Buffer Amplifier”
The “W ide Range Clock Buffer Amplifiers” developed for the Grandioso G1
flagship model are adopted to provide an even wider frequency range
than ever before. These discrete circuits using high-speed transistors with
excellent high frequency performance are separated for each output
terminal to greatly contribute to major improvements in sound quality by
providing an accurate and stable timing signal to audio devices.
"Adaptive Zero Ground" Mode
The G-01X has the “Adaptive Zero Ground” circuitry inherited from the
Grandioso G1 between the internal rubidium unit and the buffer amplifiers.
The "Adaptive Zero Ground" mode actively drives the ground signal to 0
volts and greatly reduces noise (random jitter) caused by variation in the
ground voltage. The user can select between the adaptive mode and the
normal mode, for different sound characteristics according to their
listening preferences.
Substantial Power Supply
A newly-designed power supply is adopted to maximize the performance
of the new “Wide Range Clock Buffer Amplifiers”,with a separate power
supply regulator assigned to each of the independent buffer amplifiers.
The amplifier and power supply are divided into blocks to ensure drive that
is both clean and powerful. A large toroidal transformer is used as the main
transformer and a dedicated El core transformer is used for digital control.
A series of multiple capacitors are used for the ripple filter circuit and
Schottky barrier diodes are used for quick response to support fast digital
processing, which assists the accuracy of the clock’s signal generation.
Eight Outputs
The G-01X can supply a clock signal to a maximum of eight devices.
Output can be switched ON and OFF for each terminal. The unit has four
10 MHz sine wave clock output terminals. The other four output terminals
(A ×2 and B × 2) enable clock signals to be output at 100 kHz, 10 MHz
(square wave), and the basic frequency of 44.1 kHz/48 kHz, up to a
maximum frequency of 22.5792 MHz/24.576 MHz, and separate output
frequencies can be set for each terminal.
External 10 MHz/1 pps Input
A 10 MHz or 1 pps reference signal can be input externally by connecting a
device such as a GPS receiver to an external input terminal. The internal
rubidium oscillator is synchronized with a higher center frequency
precision clock received from a satellite, and this allows more stable
rubidium oscillation than the crystal controlled oscillator built into the
external GPS receiver, which makes the most of the advantages of a high
precision GPS system.
Gold Plated BNC Terminals
The unit adopts milled brass BNC terminals to achieve a secure
connection. These allow high-end cables to be easily connected and
minimize loss of transmission to the utmost limit.
SACD/CD Transport
Clock Clock
Master Clock Generator
D/A Converter
Digital Audio
SACD/CD Player
Network Audio Player Master Clock Generator
Clock
High precision rubidium oscillator
and "Adaptive Zero Ground" circuit
Power supply components
Wide range clock buffer amplifiers featuring
a power regulator and amplifier integrated
into separate blocks via the shortest route
fig.1 fig.2
