d1-twelve-mk3 DAC d1-twelve-mk3 RoonReady Totaldac d1-single front

The d1-twelve-mk3 is the latest version of the famous d1-twelve DAC.
This DAC is composed of two monoblocs and a specialized reclocker, so it is a 3 box system.
The d1-twelve-mk3 uses 6 discrete resistor R2R ladders per channel, so a total of 12 ladders for the system and in other words roughly 600 Vishay Foil resistors, probably unique in the world.

So many DACs in parallel allow to lower the noise and the impedance, so much that an output stage is not mandatory.

Totaldac d1-twelve-mk3 front

The d1-twelve-mk3 has two different sets ot outputs that the user can select by a switch:
-one set of unbalanced RCA and XLR outputs which are directly connected to the R2R ladders, without use of an active output stage.
So there is no tube nor transistor nor any other active components in these outputs.
-one set of RCA and balanced XLR outputs using a discrete transistor class A output stage.
These outputs have a higher voltage to match all (pre)amplifiers.

The d1-twelve(-mk3) was playing at the Munich show many times, see comments from reviewers here: listening

"It was magical. There was no slipping out of its musical grip and devolving into the left brain state. It required no effort to stay on the musical side." Cmarin, VIP whatsbestforum member

"The Totaldac d1-digital reclocker/d1-twelve DAC combo represents a MAJOR ACHIEVEMENT in the world of digital converters.
It shows performance levels that go beyond everything that I have ever tried under known conditions.
The most striking virtue was how it brought together extreme transparency and exemplary musicality without sacrificing one bit of either of the two.
Upper Echelon award, as well as the place n Über Audio section - it truly belongs to the STATE OF THE ART CLASS!"

"The TotalDAC D1-Twelve is for me, in my system and my musical preferences the best digital front end that I have heard in my system and I have heard a fair number of the top digital performers." Example of reference system using a d1-twelve-mk3 DAC

Magico main demo room using a d1-twelve-mk2 DAC

Taiko Audio main demo room using a d1-twelve-mk2 DAC

Another reference system in the USA, based on Rockport Lyra speakers

This video allows you to listen to the d1-twelve-mk3:
Totaldac Fun Day 2022 video recording

-192KHz asynchronous Xmos USB, optical, RCA and AES-EBU digital inputs, selected from a remote control.
-44.1KHz, 48KHz, 88.2KHz, 96KHz, 176.4KHz and 192KHz, 16 to 24 bit formats supported.
-as an option, DSD (DoP standard) supported on all inputs.
-embedded custom clock with anti-jitter FIFO memory.
-1.6Vrms max at the R2R direct unbalanced RCA and XLR ouputs.
-3.2Vrms max at the RCA output with active output stage, 6.4Vrms max at the balanced XLR output with active output stage.
-volume control, adjusted by a remote control and an OLED display, works for all inputs.
-phase polarity selected by remote control.
-non-oversampling DAC compensation filter activated or disactivated by remote control.
-display switched off by remote control or automatic.
-R2R DAC technology using about 600 pieces of 0.01% VAR Bulk Metal® Foil resistors Vishay Foil Resistors.
-direct R2R ladder outputs or class A discrete transistor output stage, selected by a switch at the back panel of the DAC.
-two AES-EBU cables (included) connect the digital front end to the monoblocs.
-external power supply to minimize the noise.
-aluminium and PMMA enclosure with massive pure copper antivibration plate.
-power consumption 45W total.
-DAC dimensions: height 110mm, width 360mm, depth 290mm.
-power supply dimensions: height 65mm, width 122mm, depth 180mm.
-weight: 21kg total.

Available options:
-streamer option. The software is the same as the d1-streamer, RoonReady certified.
-DSD (DoP) option.
-silver massive aluminium front panel.
-115V power option.
-BNC coaxial digital input instead of RCA.
-Bass boost.
-one-box live-power grade power supply.


The remote control supplied with all d1-twelve-mk3 DACs:

Totaldac d1 remote control

Spectrum of a 1KHz waveform measured on the direct RCA output, same FFT reference as for the d1-six for a direct noise floor comparison:

FFT d1-twelve-mk3 DAC

The noise floor is extremely low, almost at the limit of the measurement equipment used.

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