Esoteric G-02X Master Clock Generator
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Esoteric G-02X Master Clock GeneratorEsoteric G-02X Master Clock GeneratorEsoteric G-02X Master Clock GeneratorEsoteric G-02X Master Clock Generator

Esoteric G-02X Master Clock Generator

£6,250.00 Exc. VAT |  


Esoteric G-02X Master Clock Generator

Master Clock Generator

The high precision G-02X master clock genenartor adopts new technologies such as "Wide Range Clock Buffer Amplifiers", "Adaptive Zero Ground" circuits, and anew custom made high-precision OCXO to attain the very best in muscial expression from your deigital audio system.

Ultrahigh Precision OCXO

The core of the unit features a custom OCXO (Oven Controlled Crystal Oscillator) newly developed by ESOTERIC that is comprised of an oven that maintains a constant internal temperature, a crystal oscillator, and an oscillating circuit. This OCXO was designed for high audio quality based on the wisdom of the Grandioso series to provide an excellent center frequency precision (±0.01 ppm Typ), and reduces phase noise by approximately 3 dB* compared to previous model.

"Wide Range Clock Buffer Amplifier"

The unit adopts the "Wide Range Clock Buffer Amplifiers" developed for the Grandioso G1. These discrete circuits utilize high-speed transistors with excellent performance at high frequencies and are separated for each output terminal to contribute to improved sound quality.

"Adaptive Zero Ground" Mode

The G-02X has the "Adaptive Zero Ground" circuitry inherited from the Grandioso G1 between the internal OCXO 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 the amplifier and power supply divided into blocks to ensure drive that is both clean and powerful. A toroidal transformer is used as the main transformer and a dedicated El core transformer is used for 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.

Eight Outputs

The G-02X 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 x 2 and B x 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.



OCXO (Chrystal oscillator)  
Frequency stability Within ±0.015ppm (0°C to +70°C / 32°F to +158°F)
Frequency precision Within ±0.015ppm ((when shipped new)
Warm-up time 10 min. (Until oscillator stabilizes after power turned on)
Clock outputs  
Output level  
44.1kHz setting 44.1k, 88.2k, 176.4k, 352.8k, 705.6kHz
1.4112M, 2.8224M, 5.6448M, 11.2896M, 22.5792MHz
48kHz setting 48k, 96k, 192k, 384k, 768kHz
1.536M, 3.072M, 6.144M, 12.288M, 24.576MHz
Both settings 100kHz, 10MHz
10MHz OUT (BNC) 4
Output level Sine wave 0.5 ±0.1Vrms / 50Ω
Master clock input  
Input frequency 10MHz (within ±10ppm)
Input level  
Sine wave 0.5 to 1.0Vrms / 50Ω
Square wave TTL level / 10kΩ
Power supply  
  AC 230V, 50Hz
  AC 120V, 60Hz
  AC 220V, 60Hz
External dimensions (W×H×D) 445 × 107 × 359mm
17-⅝" × 4-¼" × 17-¼" (including protrusions)
Weight 11.3kg / 25 lb
Included accessories Power cord × 1
Felt pads × 3
Owner's manual × 1
Warranty card × 1

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