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Aurender MC20 Master Clock
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Aurender MC20 Master Clock
A New Standard of Accuracy and Stability
In any digital audio system, the rate at which digital data is transmitted and received is of the utmost importance. Specifically, all devices in the digital signal path must be synchronized in order to provide a coherent presentation. Therefore, for the ultimate experience in clarity, transparency, focused imaging, and natural realism, your system’s digital source, DAC, and any other up-samplers or converters should all receive the same synchronized clock signal from an ultra precise and stable source.
The Aurender MC20 is both a Master Clock and Word Clock generator that is inspired, developed, and designed to deliver an exceptionally high level of digital audio realism from a connected music server and/or D/A converter. Thanks to the MC20’s superior timekeeping, jitter is reduced to infinitesimal levels resulting in the ultimate timbral purity and rock-steady placement of instruments within your system’s soundstage.
At the heart of the MC20 is a rubidium module that generates a 10MHz master clock reference signal. A rubidium clock is employed for its superior accuracy and stability in both the long and short term for ultra-low jitter. Additionally, MC20 contains two discrete OCXO word clock modules for generating the frequencies 44.1 kHz and 48 kHz. MC20 will independently and simultaneously supply the four 10MHz master clock outputs and four Word Clock outputs (2 at 44.1 kHz and 2 at 48 kHz) for unprecedented versatility with a wide variety of Aurender and third party equipment.
Rubidium 10 MHz Clock Module
The rubidium clock module employed in the MC20 is an exceptionally stable and accurate design that establishes a new low level of phase noise and jitter. Its flawless performance delivers a new level of vivid clarity with a three-dimensional width, depth, and height to the sound field it creates. The reduction of jitter and phase noise removes any trace of “digital glare,” and instead provides an analog-style warmth and naturalism to any digital audio source.
Discrete OCXO Clocks
TWO SEPARATE CHANNELS OF OCXO WORD CLOCK GENERATORS WITH 75Ω AND 50Ω PORTS ON EACH CHANNEL.
Many DACs and sources accept only Word Clock input as opposed to 10MHz Master Clock input. For connectivity with such equipment, 2 channels of discrete OCXO driven word clock outputs are included. Set one to 44.1 kHz, and the other to 48 kHz (and multiples thereof).
Synchronized Perfection
An innovative SPDIF sync channel enables automatic synchronization of word clock output depending on the content being played.
Connectivity
Connect MC20 to an Aurender source + a DAC with clock input for the maximum benefit. However, even if your DAC does not have a clock input, synchronizing your Aurender transport with MC20 is still a revelation.
MSRP: $30,000 / Available in Silver or Black
MC20 Technical Specifications
SPDIF Sync Input
Coaxial BNC, 75Ω (BNC 75Ω)
Clock Output
Rubidium Master Clock: 10MHz 2ea. (75Ω), 2ea. (50Ω), 0.7Vrms (±10%)
Word Clock: CH. A 2ea (75Ω), CH. B 2ea (75Ω)
Connectivity
USB (Reserved for future use)
LED Indicators / Button
LED Indicators: Clock LED, Sync LED, Multiplier LED 10ea (Ch)
Select Button: Clock Select, Multiple Select, Power Button
Phase Noise (Rubidium)
< -130dBc / Hz (10 Hz)
< -140dBc / Hz (100 Hz)
Freq. Short-term Stability (Rubidium)
<2×10⁻¹¹ (1 s)
<1×10⁻¹¹ (10 s)
<2×10⁻¹² (100 s)
Phase Noise (OCXO)
< -90dB/Hz (1Hz)
< -115dB/Hz (10Hz)
< -127dB/Hz (100Hz)
< -143dB/Hz (1kHz)
Freq. Stability (OCXO)
<5 x 10⁻¹⁰
Size (WxHxD)
430 x 106 x 370 mm (unit only), (127 mm height with foot)
16.9 x 4.2 x 14.6 inch (unit only), (5.0 in height with foot)
Weight
20.3kg, 44.7lbs
Input Voltage
110V / 220V
Power Consumption
Standby: 5.7W / Power On: Start Warm-up (160W), State Lock (58W)