d1-CD CD transport

The d1-CD is a CD transport made to be an absolute reference in term of digital source, feeding a Totaldac DAC or any other DAC.

The d1-CD uses a today's Austrian CD-PRO8 mechanism and inherits all the research that went into developing Totaldac DACs, reclockers and streamers:
oscillators, specific clock distribution, specific spdif generator, massive copper plate, anti-vibration feet, ground and earth distribution, electromagnetic and mechanical damping, live-power transformer, specific power supply filtering.

All the fine-tuning was done on Totaldac's top-of-the-range system and also in comparison with a studio analogue master tape player.

The oscillator has an rms jitter of just 40 femtoseconds, a far from usual figure that goes some way to explaining the impression of instant dynamics.

The external live-power supply has much better galvanic isolation than the usual mains supplies, and the result can be seen in the noise spectrum when it powers a DAC, with the last little spurious lines unrelated to the mains frequency disappearing (spurious noise). This also has an audible effect on the CD transport, even though it only outputs the digital signal.
As the power supply is external, it also emits no mechanical vibrations or electro-magnetic waves on the CD mechanics, digital signals or oscillator.

The mechanics takes a solid copper plate as mechanical ground reference (the same as used in Totaldac DACs), then decoupled from the playback mechanics by 4 conical springs and 4 silicone rubber dampers.
The copper plate itself is isolated from the hi-fi rack by 3 anti-vibration feet with integrated ball bearings. The carbon intermediate plate and the cover are damped by ferrite rubber.

The d1-CD provides 2 digital outputs: coax RCA and XLR AES-EBU.

"Playing a record with the d1-CD provides an immediate increase in
information quantity, intensity, transparency, micro nuances and depth of scene.
With a live recording like Johann Strauss's The Bat conducted by Carlos Kleiber (extract A),
the effect is simply stunning: the actors-singers
materialise in front of us with all the carnal
presence they would have if we were watching from the soundman's booth.
It's an experience that's hard to describe, going beyond what we are used to listen to,
except from sources like an analog master tape or a live FM broadcast.
To be able to reproduce this from a
CD is an achievement that deserves respect.
The pluses: The CD like never before.
Cons: Still a valid medium, the proof (+). " Diapason

Totaldac d1-CD CD transport

d1-CD video recording

Specifications:
-RCA coaxial spdif and XLR AES-EBU outputs (avoid using both at the same time).
-100% original Red Book signal, without any modification, pure 44.1KHz 16bits CD signal.
-can also read the CD layer of a hybrid SACD disc.
-40 femtosecondes oscillator.
-CD-text functionality.
-Totaldac live-power external power supply.
-aluminium and PMMA enclosure with massive pure copper antivibration plate.
-power consumption 10W when playing a CD
-player dimensions: height 135mm,, width 360mm, depth 290mm.
-power supply dimensions: height 65mm, width 122mm, depth 180mm.
-weight: 8kg.

Available options:
-silver massive aluminium front panel.
-110V/120V 60Hz power option.
-BNC coaxial digital output instead of RCA.

prices

Rear view:

The connections are easy to use: a power supply connector, a coax output, an AES-EBU output and a ground RCA connector can be connected direclty to the earth.

Totaldac d1-CD rear view