• OCK-2P | Platinum Edition Reference Master Clock Generator
OCK-2P | Platinum Edition Reference Master Clock Generator
OCK-2P | Platinum Edition Reference Master Clock Generator
OCK-2P | Platinum Edition Reference Master Clock Generator
OCK-2P | Platinum Edition Reference Master Clock Generator
[Pre-Order] OCK-2P | Platinum Edition Reference Master Clock Generator
[Pre-Order] OCK-2P | Platinum Edition Reference Master Clock Generator
OCK-2P | Platinum Edition Reference Master Clock Generator
OCK-2P | Platinum Edition Reference Master Clock Generator
OCK-2P | Platinum Edition Reference Master Clock Generator
OCK-2P | Platinum Edition Reference Master Clock Generator
[Pre-Order] OCK-2P | Platinum Edition Reference Master Clock Generator
[Pre-Order] OCK-2P | Platinum Edition Reference Master Clock Generator
OCK-2P | Platinum Edition Reference Master Clock Generator
OCK-2P | Platinum Edition Reference Master Clock Generator
OCK-2P | Platinum Edition Reference Master Clock Generator
OCK-2P | Platinum Edition Reference Master Clock Generator
[Pre-Order] OCK-2P | Platinum Edition Reference Master Clock Generator
[Pre-Order] OCK-2P | Platinum Edition Reference Master Clock Generator
OCK-2P | Platinum Edition Reference Master Clock Generator
OCK-2P | Platinum Edition Reference Master Clock Generator
OCK-2P | Platinum Edition Reference Master Clock Generator
OCK-2P | Platinum Edition Reference Master Clock Generator
[Pre-Order] OCK-2P | Platinum Edition Reference Master Clock Generator
[Pre-Order] OCK-2P | Platinum Edition Reference Master Clock Generator
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OCK-2P | Platinum Edition Reference Master Clock Generator

$1,998.00

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Description

Discover the updated features of OCK-2P： Product Page

OCK-2P is a high-performance external master clock fully upgraded from the acclaimed OCK-2S. Featuring a flagship low-phase-noise OCXO, an independent thermos chamber, an enhanced power supply architecture, and ultra-low additive phase noise clock distribution, OCK-2P significantly improves time-base stability and signal purity. A newly added selectable grounding design further enhances system compatibility and noise management in complex audio setups.

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Platinum Edition 10 MHz Master Clock

OCK-2PLow close-in phase noise. Six independently driven outputs.

A 10.000 MHz OCXO master clock for multi-component digital audio systems.

One clock across the digital front end.

For components equipped with a 10 MHz external clock input.

OCK-2P10.000 MHzOCXO reference
  • Streamer
  • CD transport
  • DAC
  • Network switch
  • Other 10 MHz devices

Twowaveforms.Sixindependent outputs.

Gold-plated BNC outputs use separate buffer and isolation paths, reducing interaction between connected components.

Sine wave

3outputs

Output at 50Ω
2.8 Vpp, 1 Vrms, 13 dBm

Square wave

3outputs

Output at 50Ω
2 Vpp, 1 Vrms, 13 dBm
Default impedance per 3-output group
50Ω × 2 + 75Ω × 1
Impedance mix can be configured

Choose the 50Ω / 75Ω mix before shipment. The waveform allocation remains 3 sine + 3 square. Contact customer service before ordering.

Fivecompartments separate power and clock circuits.

The transformer, linear supply, AC input, OCXO thermal chamber, and output board each occupy a dedicated compartment machined into one CNC aluminum chassis.

OCK-2P five-compartment chassis layout Simplified top plan of the transformer, linear power, AC input, OCXO thermal chamber, and clock output board compartments. All compartment walls belong to the same machined chassis structure.TransformerLinear powerAC inputOCXOthermal chamberClock output board

Flexible grounding for multi-component systems.

Choose the chassis-earth connection at the rear panel, with a separate terminal for an external ground lead.

FLOAT

Disconnects the chassis from AC protective earth.

GROUND

Connects the chassis to AC protective earth.

TERMINAL

Provides a connection point for an external ground conductor.

Core specifications and construction

Clock performance

1 Hz close-in phase noise

≤ −115dBc

10 MHz carrier, 1 Hz offset

The 1 Hz point is the per-unit guarantee. The remaining offsets are listed product specifications.

Additional listed phase-noise points

10 Hz offset
≤ −140 dBc
100 Hz offset
≤ −150 dBc
1 kHz offset
≤ −158 dBc
10 kHz offset
≤ −160 dBc

Frequency control

Reference frequency
10.000 MHz
Frequency accuracy
< ±0.05 ppm
Frequency stability
< ±5 ppb
Short-term stability
2 × 10⁻¹² at 1 second

Internal components

Oven-controlled clock core
10.000 MHz OCXOHoused in a dedicated thermal chamber
Toroidal transformer
30 VA NoratelLocated in its own chassis compartment
Two-stage linear regulation
LM350T + LT3041LM350T primary regulation + LT3041 secondary regulation
Chassis structure
CNC-machined aluminumFive compartments separate power, clock, and output circuitry
Independent output paths
6 gold-plated BNC outputs3 sine + 3 square; each output has its own buffer/driver and isolation circuit

Physical and operating

Supported voltage
110-120 VAC / 220-240 VAC
Warm-up time
15 min basic / 60 min full
Power consumption
5 WAfter stabilization
Dimensions
240 × 175 × 50 mm
Weight
2.0 kg
Fuse
5 × 20 mm T1.0AL
Available finishes
BlackSilver

1. Flagship OCXO with Enhanced Close-In Phase Noise Performance

OCK-2P employs a carefully selected high-performance OCXO, delivering substantial improvements at critical close-in offsets:

  • –115 dBc @1Hz Offset (Guaranteed)
  • –140 dBc @10Hz Offset (Guaranteed)

Lower close-in phase noise contributes directly to improved sonic stability, enhanced micro-dynamic resolution, and more accurate spatial reproduction.

2. Independent Thermos Cabinet for Long-Term Stability

An independent thermos cabinet provides a stable and controlled thermal environment for the OCXO, minimizing the influence of ambient temperature fluctuations. An integrated OCXO warm-up status LED clearly indicates when optimal operating conditions have been reached.

3. Enhanced Power Architecture for a Cleaner Foundation

OCK-2P features a 30VA toroidal transformer paired with a two-stage linear regulation topology (LM350T + LT3041). This architecture reduces power-supply noise, improves PSRR, and provides a stable, low-noise foundation for both the clock core and distribution circuitry.

4. Ultra-Low Additive Phase Noise Clock Distribution

The upgraded clock distribution amplifier is designed with ultra-low additive phase noise, ensuring consistent timing accuracy and signal integrity even when driving multiple outputs simultaneously.

5. Selectable Grounding for System-Level Noise Optimization

OCK-2P adds a dedicated grounding terminal with a selectable ground switch, allowing operation in either grounded or floating mode. This flexible grounding design enables system-level fine-tuning and helps minimize potential ground loops and unwanted noise coupling.

Discover the updated features of OCK-2P： Product Page

Clock Core: High-performance OCXO
Phase Noise:
–115 dBc @1Hz Offset (Guaranteed)
–140 dBc @10Hz Offset (Guaranteed)
Thermal Design: Independent thermos cabinet
Power Transformer: 30VA toroidal transformer
Regulation Topology: Two-stage linear regulation (LM350T + LT3041)
Clock Distribution: Ultra-low additive phase noise amplifier
Grounding: Dedicated ground terminal with selectable ground switch
Indicators: OCXO warm-up LED, Power LED

  • Designed for high-end digital audio systems requiring precise timing accuracy
  • System optimization results may vary depending on system configuration
  • OCK-2P is the official upgraded model replacing OCK-2S

Product Page: https://www.lhy-audio.com/products/ock-2p/

Q: What is the difference between OCK-2S and OCK-2P?

A:Both are 10 MHz OCXO master clocks. OCK-2P is an upgraded version of OCK-2S, offering:

  • A higher-precision OCXO with lower phase noise (< -115 dBc vs. < -110 dBc)
  • Improved internal circuit and power supply design
  • Enhanced chassis and internal isolation structure

OCK-2P focuses on further refinement in stability, detail, and timing accuracy, while OCK-2S already delivers excellent core performance.

Q: What is the purpose of the Float / Ground switch?

A: If multiple devices are grounded, a ground loop can occur and cause hum or noise. Switching one device to Float breaks the loop and helps reduce or eliminate the noise.