Introduction
Wyred 4 Sound products are a perfect example of what is accomplished when practical engineering and knowledge
are combined. All components are selected for the greatest possible functionality, durability, and most importantly,
quality. Wyred 4 Sounds’ excellence in engineering will provide you with first-class performance and years of
satisfaction. All Wyred 4 Sound products are proudly designed and assembled in California.
Our product goal is simple: to deliver the beauty and realism of your music into your home with as little change as
possible. We know what our competition has to offer, and you can be sure that we constantly strive to make the
value of our products substantially more. We hope you enjoy your new Wyred 4 Sound product for years to come,
and that you consider us in the future as we continue to provide exceptional and innovative audio components to
music lovers worldwide.
DAC-2v2 Series Design Features
The new DAC-2v2 series (DAC-2v2 and DAC-2v2SE) represents our latest step forward in DAC design and
innovation. These new DACs offer some of the latest technology available today and bring new life to digital music.
The new DAC-2v2 features the ESS Sabre 9028PRO DAC chip, while the DAC-2v2SE is equipped with the flagship
ESS Sabre 9038PRO chip. The ESS Sabre Pro DAC is the world’s highest performance 32-bit audio DAC solution. In
our implementation, we utilize the 8ch chip in quad-differential mode meaning that there are actually four differential
D-A conversion circuits for each channel in parallel. This helps achieve a spectacular S/N ratio and output drive
capability. The I²S DSD format offers a jitter-free solution to transmitting digital data from our cutting-edge USB
interface to the Sabre chip. Newly implemented technology and hardware now takes full advantage of this
remarkable feature. The upgraded interface instantly detects the native DSD data and routes the signal to the
appropriate internal processors resulting in unparalleled sonic performance.
Another design feature is the galvanically isolated I²S USB interface which prevents computer noise from interfering
with the quality of the audio signal. Setup with your source via USB is driverless for Linux and Mac, while Windows
users will require a quick driver install to begin playing your favorite tracks.
The DAC-2v2 series can process signals up to 24/200 kHz via the coax digital inputs. Toslink inputs are tested to
function up to 192 kHz sample rate, although due to limitations inherent in toslink transmission, a maximum of 174.6
kHz has proven to be more reliable. Both the USB input and I²S input will process signals up to 32 bits in length and
sample rates of up to 384 kHz PCM and DSD 256.
Each of the coax inputs are transformer coupled to isolate the source while maintaining proper loading. To ensure
that the lowest input signal level will satisfy the digital conversion engine, the signals also pass through TTL buffers to
maintain consistent signal integrity. To simplify input selection, the ESS chip is also used as the receiver chip and
performs all the signal selection and routing. Automatic signal up-sampling is done internally to keep output filtering
to a minimum, and is a crucial part of the jitter elimination. To ensure source immunity, the time domain jitter
elimination is executed as the signal enters the DAC chip by re-clocking to the desired rate selected by the ESS chip.
With an oversized toroidal transformer, more than 115,000uF of capacitance, 3 stages of filtering and 13 regulation
points, the power-supply in the DAC-2v2 series is incredibly robust. The analog output stages are powered by a
separate power-supply to ensure isolation from the digital front-end. House-keeping voltages also use separate
supplies to guarantee minimal supply contamination. The digital board is supplied with 7 out of the 13 dedicated
regulators to ensure tight tolerances and consistent power delivery.
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© Wyred 4 Sound. All rights reserved. DAC-2v2 & DAC-2v2SE Manual v2
