d1-single-mk2 DAC

The d1-single-mk2 is a simplified version of the d1-six DAC.
It uses one R2R ladder DAC per channel (three for the d1-six) and it has no balanced output.
The discrete class A transistor output stage is the same as the d1-six output stage.

"d1-single-mk2 is an extremely good DAC. It delivers a precise, resolving sound, but also slightly warm and vivid.
It is very clean and differentiates recordings really well.
Vincent's DAC though sounded great when combined with my Soulution 710 power amplifier.
Was it just a coincident that these two devices worked so well together?
I don't know, but this power amp usually sound better paired with active preamps.
This time, the elimination of the Ayon Spheris III from signal's path resulted in a more direct sound.
The leading edge was faster and clearer. The front of the soundstage was brought closer to me and the back even further away,
which created the effect of extended soundstage."
Wojciech Pacula, High Fidelity
"What an enjoyment. A beast of musicality."
Maximum note 8/8 for 5 sound qualities. Note 7/8 for the two other sound qualities.
Dominique Mafrand, haute fidélité, about the mk1
"The degree to which it bested what I knew (including APL Hifi, Audio Aero, dCS, EMM Labs, Esoteric, Weiss, Meitner and Zanden) was unexpected" Srajan Ebaen, 6moons, about the mk1

Totaldac d1-single-mk2 front

-192KHz asynchronous Xmos USB, optical, RCA and AES-EBU digital inputs, selectable 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.
-3.0Vrms max RCA and 32ohm-600ohm 3.0Vrms max headphone amplifier. The XLR connector carries only the un-balanced signal, so it is equivalent to the RCA output.
-volume control, adjusted by a remote control and an OLED display, works for all inputs, not only USB.
-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 0.01% VAR Bulk Metal® Foil resistors from Vishay Foil Resistors, 100 resistors used.
-class A discrete transistor output stage.
-external power supply to minimize the noise on the embedded preamp.
-aluminium and PMMA enclosure with massive pure copper antivibration plate.
-power consumption 18W.
-DAC dimensions: height 110mm, width 360mm, depth 290mm.
-power supply dimensions: height 65mm, width 122mm, depth 180mm.
-weight: 6.5kg.

Available options:
-DSD (DoP) option.
-silver massive aluminium front panel.
-115V power option.
-BNC coaxial digital input instead of RCA.
-d2-single-mk2 and d3-single-mk2, 69 bit 2 way or 3 way active crossover with RCA analog outputs including a digital preamp for the main volume control and also for the relative level between bass and treble. The crossover slope can be 6dB/oct, 12dB/oct or 18dB/oct. All parameters, crossover frequency, filter slope, relative volume, main volume, relative digital delay... can be controlled from the remote while listening to music.
With the d2-single-mk2 with DSD option the digital delays can't be used.
The d3-single-mk2 is not compatible with the DSD option (you can use a reclocker or d1-server as a DSD to PCM converter).
-Bass boost.


Totaldac d1-single rear

Silver option:

Totaldac d1-single silver

1KHz -110dBFs sinewave 20Hz-22KHz spectrum:

FFT 1KHz -110dBFs single DAC

The measurement is done with USB as source, from a standard computer plugged on mains.
The noise floor is very low especially in the 200Hz-4KHz region where the ear is very sensitive.

office telephone: +33 2 90 02 11 39 (european time zone)
mobile telephone: +33 6 18 03 14 08 (european time zone)