Puccini is a revelation - a high end system in one box - combining the aesthetics of the Paganini with all of our upsampling, DAC and CD/SACD player technology in a single, easy to set up unit which delivers unbeatable performance.
The Puccini range now features the award winning Puccini U-Clock which is separate grade 1 system clock to further reduce jitter and improve performance. Matched with the Puccini Player it improves on an already spectacular sound and takes it into an entirely new domain. With a clock added to a dCS system images snap into sharper focus and the music displays a substantially greater sense of authority and power as well as, most importantly, offering noticeably higher resolution of detail.
Puccini U-Clock also features a USB to SPDIF converter, which enables Puccini owners to present sound files from a PC or Mac to the legendary dCS Ring DAC inside the Puccini.
dCS equipment is designed to generate and accept industry standard Word Clock on 75 ohm co-axial cable. Our Clocks will drive other manufacturers' equipment designed to accept standard Word Clock. Non-standard clock formats must be assumed to be proprietary to that manufacturer.
Asynchronous USB Mode
In USB, there are numerous modes for synchronising the audio between the PC (the host), and an audio device. The most popular of these, "adaptive", involves the audio device synchronising itself to the USB "frame" provided by the PC. This tends to give poor jitter performance. Puccini U-Clock operates in "asynchronous" mode (NOT to be confused with asynchronous rate conversion), where the audio device synchronises the audio by providing a feedback pipe to the PC. The PC then is effectively locked to the audio device, which can have a much more accurate clock and much lower jitter.
Using the Puccini U-Clock
USB is isochronous. This means that the host (PC) and client (Puccini U-Clock) both know how much bandwidth is available at the outset, so the host can guarantee that bandwidth will be available all the time.
Your music may be stored on an external Hard Disc Drive (HDD) or Network Attached Storage (NAS) in a different room, networked to a small, silent PC connected by USB cable to the Puccini U-Clock. When the user selects the audio for playback, the Mac/PC streams all of the selected data from the HDD or Network Assigned Storage (NAS) device, then outputs the data on USB.
Note: The audio flowing between the PC and Puccini U-Clock is packetised PCM at 32, 44.1, 48, 88.2, 96, 176.4 or 192kS/s. It is the job of the codecs installed on the PC to decode the data and present it to Puccini U-Clock in a standard PCM format.
- System Clock
- finish options
- Silver or Black
(W) 460mm x (D) 410mm x (H) 58mm
(W) 18.1" x (D) 16.2" x (H) 2.3"
Allow extra depth for cable connectors
- 7.6 kg / 16.7 lbs.
- CD mechanism
- converter type
- analogue outputs
- digital I/O
USB interface on a B-type connector, will accept up to 24 bit PCM at 44.1, 48, 88.2,96, 176.4 or 192kS/s. Operates in asynchronous USB mode.
Puccini U-Clock will present data received via the USB interface, unprocessed, in SPDIF format on 2 x RCA Phono connectors.
- word clock I/O
4 independently buffered outputs on 75 BNC connectors, all carry the same clock frequency.
With the USB interface active at 32, 48, 96 or 192kS/s, the word clock outputs are set to 48kHz.
With the USB interface active at 44.1, 88.2 or 176.4kS/s, the word clock outputs are set to 44.1kHz.
- clock frequencies
- 44.1kHz or 48kHz, calibrated within +/-1ppm, (typically +/-0.1ppm), temperature compensated.
- residual noise
- spurious responses
- software updates
- Loaded from ROM by distributor.
- software version
- local control
- power supply
- Factory set for 100 - 120 or 200 - 240 V AC, 49 - 62Hz.
- power consumption
- 3 Watts typical/6 Watts maximum
"Overall there was something very right about the sound of the dCS Puccini system, not only when playing SACDs or well recorded CDs, but also when playing PCM data sourced from my Mac Mini via USB and the U-Clock"
John Atkinson, Stereophile
- Puccini Clock is a grade 1 system clock, featuring 4 word clock outputs.
- Allows Puccini owners to play sound files from a PC via the dCS Ring DAC on board the Puccini.
- Asynchronous USB mode prevents the source injecting jitter into DAC.
- High grade aluminium chassis and laminated acoustic damping panels to reduce magnetic effects and vibration.