Esoteric

G-02X Master Clock Generator

Introduced 2018MSRP not recorded

The Esoteric G-02X is a master clock generator built around a custom high-precision oven-controlled crystal oscillator (OCXO), designed to supply reference timing to up to eight digital audio devices simultaneously. It features an "Adaptive Zero Ground" circuit to suppress ground-voltage-induced random jitter and offers independently configurable output frequencies across its four general-purpose clock terminals plus four dedicated 10 MHz sine-wave outputs. Esoteric's official specifications page now lists the G-02X as discontinued.

MSRP

—

Original list price not on record.

Used market · Good

$3,800

as of Sep 1, 2026

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MSRP to used market

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Specifications

Price: ¥470,000 excluding tax (Japan)
Weight: 11.3 kg / 25 lb
Outputs: 4x BNC CLOCK OUT (44.1/48kHz-family rates up to 768kHz plus 100kHz/10MHz, TTL/75Ω square wave); 4x BNC 10MHz sine-wave outputs (0.5±0.1Vrms/50Ω); supplies up to 8 devices total
Dimensions: 445mm x 107mm x 359mm / 17-5/8" x 4-1/4" x 14-1/4"
Warm up time: Approx. 10 minutes to oscillator stabilization
Oscillator type: Custom Esoteric OCXO (oven-controlled crystal oscillator)
Frequency accuracy: ±0.01 ppm typical when shipped new
Phase noise jitter: Phase noise reduced ~3dB vs. previous model at 100Hz offset; "Adaptive Zero Ground" circuit reduces random jitter from ground-voltage variation (no numerical jitter figure published)
Frequency stability: Within ±0.015 ppm across 0°C to 70°C
Dimensions w x h x d: 445mm x 107mm x 359mm / 17-5/8" x 4-1/4" x 14-1/4"
External reference input: 1x BNC, 10MHz ±10ppm (sine 0.5–1.0Vrms/50Ω or TTL square wave)