dCS Rossini Master Clock

Rossini Master Clock is a simple to use Grade 1 master clock, based on pioneering developments in studio and home audio. Featuring three separate clock outputs capable of outputting different frequencies, Rossini Master Clock allows Rossini DAC or Player users to benefit from the auto clocking mode in Rossini and optimize audio from various digital sources in a simple, fuss free way.

In a digital audio system, samples must be accurately transferred at the correct time. Instability in the sample timing is called jitter – this exists in all digital systems. Severe jitter results in timing errors in the delivery of data to the DAC, causing the analogue signal to be reconstructed inaccurately.

In a dCS system, the DAC can act as the system master clock, but listening tests have shown that there is no substitute for a high quality, dedicated master clock.

dCS pioneered the use of external clocks in digital audio systems. Our clocking technology has been continually refined so that our latest multi-stage Phase-Locked- Loop (PLL) system sets world-beating standards for accuracy and control of troublesome jitter from the incoming audio stream.

• Designed for maximum flexibility as output configuration can be optimised in systems with a wide variety of digital audio sources.
• Dual crystal oscillators with microcontroller-enhanced temperature correction.
• New dual frequency output and auto- clocking mode used in the Vivaldi and Rossini range improves ease of use and minimises jitter, particularly with computer audio sources.
• Multi-stage regulation ensures sensitive clock and PLL circuitry is unaffected by digital interference.
• Aerospace-grade machined aluminium chassis fitted with tuned acoustic damping panels reduces magnetic effects and vibration.

• Type: Class 1 Master Clock.
• Clock Frequencies: 44.1kHz or 48kHz.
• Colour: Silver or Black.
• Dimensions (WxDxH): 444mm/17.5” x 435mm/17.2” x 64mm/2.6”. Allow extra depth for cable connectors.
• Weight: 8.3kg/18.3lbs.
• Clock Accuracy: Better than +/-1ppm when shipped, over an ambient temperature range of 10°C to 30°C. Typically +/-0.1ppm when shipped and stabilised.
• Word Clock I/O: 3 independently buffered outputs on 75Ω BNC connectors. Output 1: fixed at 44.1kHz Output 2: fixed at 48kHz Output 3: 44.1kHz, RS232 controllable.
• Start Up Time: Typically 1 minute to rated accuracy.
• Local Control: RS232 (limited to Power and Clock 3 output frequency).
• Power Supply: Factory set to either 100, 115/120, 220 or 230/240V AC, 49-62Hz.
• Power Consumption: 3 Watts typical / 4 Watts maximum.