Its drive capability allows the d1-driver to improve the sound of a DAC, improving bass control, articulation, presence, soundstage and life.
It has been tested when connected between a DAC and a power amplifier (transistor or tube), but also between a DAC and an integrated amplifier.
The d1-driver has no volume control because it relies on the DAC volume control.
It has been tested in association with the d1-core up to the d1-direct and d1-twelve DACs, with a big sound improvement even with DACs having a 3.3V output and 40ohm output impedance.
New possibility from 2019 for LP users: the Totaldac Amp-1 power amplifier can have 2 pairs of RCA inputs and a switch to choose a full digital source (DAC + d1-driver) or a full analog source (LP + preamp).
Magico main demo room uses a d1-driver
-voltage gain: 0dB gain (x1 factor) or 10dB gain (x3 factor), chosen on order
-RCA inputs and outputs by default. Balanced XLR are possible when using two d1-driver-XLR in monoblocs configuration
-very high bias current class A design for a natural low output impedance and low distorsion
-very high grade components in the signal path, some of them custom made.
-extreme low noise due to discrete design (no IC at all) and external power supply, matching the noise of d1-twelve DAC
-very easy input impedance: 1MegaOhm
-natural low output impedance plus added 40ohm pure resitor for a perfect interconnect impedance matching
-can drive anything above 100ohm without distorsion
-frequency cut-off at -3dB: 2.5MHz
-using 0.01% VAR Bulk Metal® Foil resistors from Vishay in critical parts of circuit
-signal ground can be connected to the earth or left floating, to avoid any ground loop noise
-aluminium and PMMA enclosure with massive pure copper antivibration plate
-power consumption 20W
-main box dimensions: height 110mm, width 360mm, depth 290mm
-power supply dimensions: height 65mm, width 122mm, depth 180mm
-0dB or 10dB voltage gain.
-two pairs of RCA outputs for a subwoofer or a headphone amplifier or for bi-amping.
-one pair of unbalanced XLR outputs, extra to the pair of RCA outputs, like the d1-direct DAC.
-balanced configuration, using two d1-driver-XLR (equipped with XLR connectors).
-silver massive aluminium front panel.
-115V power option.
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mobile telephone: +33 6 18 03 14 08 (european time zone)