R-2R digital-to-analog converters or ladder DACs make use of a resistor network to generate an analog signal from the digital data that is presented at its inputs. This type of DACs provides a very analog and smooth sound based on the precision of the resistive elements used, which is why we use more than 600 ultra-high precision resistors with 0.01% tolerance from the Vishay Foil Resistors ® brand.

We use this bit depth to generate as smooth an analog 32-bit ladder as possible, achieving very small digital-to-analog steps for a natural, smooth, non-digital sound.

All this is controlled by 3 FPGAs or digital engines, each FPGA has been programmed for a function and communicates with the other FPGAs without burdening any of them, they are independent but work with each other, this allows us a high conversion speed without interference from other functions such as control and sample rate selection.

In addition to all this, we have managed to create proprietary software and hardware functions that make our converted DACs unique.

Proprietary Programmable Audio Oscillators.
Proprietary modular concept.
EMI and RF anti-interference AC Extraudio input filters.
Proprietary dual and quad power supplies.
Proprietary USB 2.0 power module.
Proprietary module with two inputs I2S and Bluetooth Aptx-hd, optional.
Proprietary remote control, optional.
Extraudio timeless and minimalist design.

DAC2 Direct and High-level Outputs:
The DAC2 has two different sets of outputs:
A set of unbalanced RCA and XLR outputs that connect directly to the R2R ladders, without the use of an active output stage.
This direct output of the resistor ladder is the most transparent and purist.
The second set of balanced RCA and XLR outputs uses a pure class-A biased BJT type transistor output stage.
These outputs have a higher voltage allowing compatibility with any type of preamplifier and also provide the characteristic sound of Extraudio with more speed, dynamics, and punch.

DIRECT OUTPUT R-2R:
RCA SE, Impedance: 50 Ohms Level: 1.3V
XLR Balanced, Impedance: 3 Ohms Level: 2.6V
HIGH-LEVEL OUTPUT CLASS A:
RCA SE, Impedance: 50 Ohms Level: 3.2V
XLR Balanced, Impedance: 3 Ohms Level: 6.4V

Because in Extraudio, less is more…

DAC2 QUAD R-2R Ladder