.bh-wrap{max-width:1100px;margin:0 auto;padding:1rem 1.25rem;line-height:1.6} .bh-eyebrow{letter-spacing:.08em;text-transform:uppercase;font-size:.8rem;opacity:.7} .bh-title{font-size:3rem;margin:.25rem 0 1rem} .bh-sub{font-style:italic;margin:0 0 1.25rem} .bh-grid{display:grid;gap:1.25rem} @media(min-width:900px){.bh-grid{grid-template-columns:1.3fr .7fr;align-items:start}} .bh-section{margin:2rem 0} .bh-bullets{list-style:disc;padding-left:1.25rem;margin:.5rem 0 0} .bh-specs{width:100%;border-collapse:collapse} .bh-specs th,.bh-specs td{border:1px solid #e5e7eb;padding:.65rem;vertical-align:top} .bh-specs th{width:42%;background:#f8fafc;text-align:left} .bh-badge{display:inline-block;border:1px solid #e5e7eb;border-radius:999px;padding:.2rem .6rem;margin:.15rem .3rem 0 0;font-size:.85rem} .bh-badges{margin-top:.5rem} .bh-faq details{border:1px solid #e5e7eb;border-radius:.5rem;padding:0.75rem 1rem;margin:.5rem 0;background:#fafafa} .bh-faq summary{font-weight:600;cursor:pointer} .bh-note{font-size:.95rem;opacity:.9} Esoteric Esoteric G-01XD Master Clock Generator Master Sound Discrete Clock (in-house OCXO) • 4× 10MHz sine outputs • Adaptive Zero Ground mode • Esoteric-HCLD output buffer Meet the G-01XD The Esoteric G-01XD Master Clock Generator is a high-precision reference clock designed to elevate the musical expression of compatible digital sources by providing an ultra-stable 10MHz timing reference. Esoteric’s in-house Master Sound Discrete Clock is an OCXO system developed specifically for music reproduction, combining a custom crystal oscillator and an advanced thermo-control program for stable operation and natural, pure clock output. Connect it to Esoteric digital players and other components that accept a 10MHz external clock to improve timing integrity, coherence, and perceived resolution. Master Sound Discrete Clock (OCXO) 4× 10MHz Sine Outputs Adaptive Zero Ground Mode Esoteric-HCLD Output Buffer Pinpoint Foot System Semi-Floating Top Plate Each output includes a dedicated toggle to select Normal or Adaptive Zero Ground mode, allowing fine tuning of presentation and noise behavior for different system contexts. Highlights & Benefits Reference timing for digital playback — The Esoteric G-01XD Master Clock Generator provides a stable 10MHz clock to help compatible sources perform at their highest level. Four independent 10MHz outputs — Drive multiple digital components from a single master clock using 4× BNC outputs. Adaptive Zero Ground mode — Per-output switching lets you choose between Normal grounding and a mode that drives output ground potential to 0V reference for sonic fine tuning. High-quality signal delivery — A dedicated Esoteric-HCLD output buffer circuit supports strong current transfer and wide bandwidth clock delivery. Built for vibration-sensitive clocking — Heavy aluminum panels, minimized screw stress, and a semi-floating top plate support a cleaner mechanical environment for the clock module. Technology & Design Master Sound Discrete Clock — Esoteric’s proprietary OCXO module is built as a discrete circuit rather than a generic packaged module, with crystal-by-crystal temperature programming and multi-step heater control intended to stabilize the oscillator under real-world conditions. Adaptive Zero Ground output topology — Each 10MHz terminal offers Normal or Adaptive Zero Ground operation, enabling system matching with different digital players and cable runs. Esoteric-HCLD output buffer — High-current buffer design is used to deliver a pure 10MHz sine wave clock signal with stable drive into connected components. Chassis and grounding philosophy — The clock module is mounted to reduce stress and improve mechanical grounding, while Esoteric’s Pinpoint Foot system and semi-floating top plate support resonance control. In systems that accept external 10MHz synchronization, the Esoteric G-01XD Master Clock Generator can be the cornerstone that unifies timing across your digital front end. FAQ — G-01XD What components benefit from a master clock? Any compatible digital player, DAC, or streamer with a 10MHz clock input can potentially benefit. Many Esoteric digital sources are designed specifically to leverage external clock synchronization. What is Adaptive Zero Ground mode? It is a selectable output mode (per BNC terminal) that drives the ground level for each output terminal to 0V reference potential of the signal, offering another option for system matching and sonic preference. How many components can I clock? The unit provides four 10MHz outputs, allowing up to four compatible devices to be synchronized from one master clock generator. Why Buy From Us Guidance on clock compatibility and cabling System matching for Esoteric transports, DACs, and streamers Careful packing and integration support Optimization tips for gain staging, grounding, and placement If you are building a reference digital front end, the Esoteric G-01XD Master Clock Generator is a purpose-built upgrade for timing refinement and system-wide coherence. Esoteric G-01XD Master Clock Generator Specs Product Type Master Clock Generator Clock Output Frequency 10MHz Frequency Precision Within ±0.01ppm (when shipped new) Clock Outputs BNC × 4 Output Level Sine wave 0.5 ±0.1Vrms / 50Ω Per-Output Mode Normal / Adaptive Zero Ground (toggle per output) Power 120V AC 60Hz, 220–240V AC 50/60Hz Power Consumption 15W (when stable) Dimensions (W × H × D) 445 × 131 × 360mm (including protrusions) — 17 5/8" × 5 1/4" × 14 1/4" Weight 12.8kg (28.2 lb) What’s in the Box 1 × Esoteric G-01XD Master Clock Generator Power cord Felt pads × 3 Owner’s manual Warranty card
