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DAC-2a
A line filter after the AC power input. At 80db, this is the most effective filter on the market, and it insures that AC noise is virtually eliminated before it ever reaches the power supply.
The power supply uses a 10 times larger VA than needed in order to insure a stable soundstage.
C coupling transformers and separate digital and analog power supplies reduce interference between the digital and analog sections.
Two stages of regulation in the digital supply interface lower the impedance and provide better isolation, which results in quieter digital noise levels.
Blackgate coupling capacitors are used to bridge the digital and analog section.
The use of a low ESR capacitor bank, with an extremely high 8,800 uf of storage in the analog section, provides extra reserves when sudden dynamic demands are made on the DAC.
In addition, the use of a push-pull analog section increases the system’s dynamic range and responsiveness, thereby producing a punchier sound.
The absence of a built-in clock circuit reduces digital intermodulation and lowers the noise floor to produce a very quiet DAC even by DAC standards, one with extremely high signal-to-noise.
The circuit design reduces jitter to a minimum by using the shortest digital signal path possible.
The low output resistance and capacitance design permits the use of long interconnects with minimal sonic degradation.
All inner wiring uses Teflon silver coated wiring to provide optimum performance for many years, and to protect the DAC for those who live in environments with high humidity.
Instead of an inexpensive Toslink, the DAC-2 uses as standard equipment a close tolerance ST optical digital connection in addition to coaxial for those who have a transport with a quality ST optical connection in order to further isolate ground loop noise from the transport.
In addition, the DAC-2a boast two premium line output transformers to remove the ground from the signal path and to provide us with many of the advantages of balanced outputs.
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