Wyred 4 Sound DSDse User Manual
Page 5
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WYRED 4 SOUND DAC-v1.2
4235 Traffic Way Software ver. 1.91
Atascadero, CA 93422
PH: 805-466-9973
FAX: 805-462-8962
www.wyred4sound.com
©2013 WYRED 4 SOUND LLC
All rights reserved
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With an oversized toroid, more than 115,000uF of capacitance, 3 stages of filtering and 13 regulation
points, the power-supply in the DAC-2 DSD is surely overbuilt. 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.
The best part of the DAC-2 DSD is the proprietary discrete output stages which represent the beginning
of the analog generation. You will quickly find why W4S spent so much time developing the cleanest, most
transparent, and natural sounding output stage. Instead of choosing the simple path like many others, we took
the “dirt road” and it paid off big time. Our grain-free sound stage reproduction is the product of our discrete
dual-differential FET input amplifier stage which uses all Dale RN55d resistors for precise control. Because of
the dual differential circuits, the completely balanced signal offers balanced and unbalanced outputs which
both take advantage of common-mode rejection.
**Special Edition Only**
In fashion with a true special edition W4S unit, we have upgraded key components throughout the
entire audio circuit starting with the main fuse at the power inlet. The Furutech rhodium plated, ceramic fuse
has proven to be an excellent complement to the upgraded power supply of the DAC-2 DSD se. Further
filtering is addressed with low loss - ultra fast recovery Shottkey diodes and a series of premium grade
inductors that assist to stabilize the current as it enters the power supply. Power is then filtered through a
series of custom low ESR capacitors after which it is regulated by newly designed discrete regulators. Our
proprietary regulator design is 100+ times quieter and faster than the stock regulator! The start of the analog
signal receives strategic treatment with our custom made naked Vishay Z-Foil resistors in 20 locations. Putting
numbers on it, the stock Dale resistors offer 1% tolerance and +/-100ppm/°C temperature coefficient where
our new resistors are 0.1% and +/-0.5ppm/°C respectively. As you can imagine, considerable aural gains are
noticed with the substantial improvement over the stock resistors.
To complete the package, we decided to connect a 2 line display for easy verification of input selection,
sample rate, and volume level. You will notice that when the DAC is locked onto a signal, the sample rate will
be shown, when the signal is lost, the sample rate will read as ----. The up and down buttons on either side of
the power button will allow for input and volume control up and down scrolling. From the front panel, you
can toggle between volume and input selection mode by quickly pressing the power button. If you push and
hold the power button in either input or volume mode, the DAC will power down. When the unit is off, you
can quickly tap the power button to bring the unit back to life.