Promitheus Audio Solid State DAC

The main board for the DAC.
Our Non-oversampling DAC using the
TDA1545A chip with Asynchronous Relocking, Passive I/V stage. Output transformer
coupled
Features
- Our own silver pulse transformer (this separates the ground thus resulting in
a quieter music) to couple the digital output of your cdp into our DAC. Our
nickel core transformer is wound on a 2mils lamination (0.05mm).
- Therefore
the digital ground is broken up between the DAC and the Transport/CDP to
allow a cleaner presentation as the grounds are isolated
- Dedicated pre and post regulator (for each chip) to bring
down the noise floor
- Specially wound Balanced power transformer to power DAC,
this is the same winding topology as our balanced power supply. This further
brings down the noise floor. The power transformer is wound on a M6 core
- Dedicated windings on the power transformer for the
digital power supply and the analog power supply. This is NOT shared
to prevent the transfer of digital noise to your precious analog power
supply.
- The power transformer is fitted with MULTIPLE
electrostatic shields to prevent the spreading of the noise cause by digital
circuits. This electrostatic shields shunt noise to ground thus keeping the
power supply clean
- Asynchrous reclocking to 100Mhz. Clock module is place
below the PCB to prevent spraying the board with noise. The clock module is
located at the bottom left end of the PCB. The clock has its own dedicate
power supply to decouple the noise generated from the clock
- The
DAC is design around a good power supply system
-
IN
the digital segment there is a master regulator and then its is fed into
local regulators individually finding the IC. SO each digital IC is
totally isolated from another digital IC
-
The
Opamp segment is run again with its own local discrete regulator. This
keeps the noise isolated between left and right op-amps
- Selectable gain structure of 1.25volts out, 2.2volts out
and 4 volts output. This allows user to optimize their gain structure.
- On the output, output transformers is used to couple the
analog voltage from the DAC to the outside world. This way the DAC is
impedance match to your down line equipment. This output transformer is
wound on a M6 core
- Chassis for the DAC is built on our tune wooden
Merbau
wood with Stainless Steel plate similar to our TVC construction
- Our new Neotech 7N copper for internal wiring Teflon wires for
power
- Pure Silver RCA used for digital
input and analog output
- USB input and Coaxial Input
Check out our
Audiocircles postings on our DAC
For a limited time we are selling the DAC for USD490 + shipping.
Shipping Charges
Purchase our Power cord together when
buying our DAC

USD150 when purchased with our DAC or
Active Preamp
The DAC weights 5.5kgs due to the oversize power transformers
and the output transformers
If you need more inputs, outputs do not hesitate to
email us. We can do customs
like add USB input too.
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