I built this DAC several years ago. The circuit and the PCB were designed by Peter Daniel of Audiosector, and uses a non over sampling TDA1543 with highly optimized parts and power supply. There are a number of Blackgate capacitors in the unit, both the power supply and the audio section.
Like his gainclone amps, Peter has put great effort into the physical layout (small circuit paths) and parts selection for these units. I bought the PCBs with the chips (Peter mounted the surface mount chips for me, very helpful) and the transformer from Audiosector. I bought the balance of the parts from Michael Percy (Blackgates) and Digikey.
I built the unit using the parts specified by Peter on his schematic, including a number of Blackgate N (nonpolar) caps and Riken I/V resistors, some of which are now quite difficult to find as they are out of production. Despite a relatively simple circuit, this DAC has completely separate power supplies for the audio and digital circuits, and uses a total of four on-board power supply regulators. I had a custom faceplate made by FrontPanelExpress.
In good used cosmetic condition and excellent operating condition. Asking $350 plus shipping.
Like his gainclone amps, Peter has put great effort into the physical layout (small circuit paths) and parts selection for these units. I bought the PCBs with the chips (Peter mounted the surface mount chips for me, very helpful) and the transformer from Audiosector. I bought the balance of the parts from Michael Percy (Blackgates) and Digikey.
I built the unit using the parts specified by Peter on his schematic, including a number of Blackgate N (nonpolar) caps and Riken I/V resistors, some of which are now quite difficult to find as they are out of production. Despite a relatively simple circuit, this DAC has completely separate power supplies for the audio and digital circuits, and uses a total of four on-board power supply regulators. I had a custom faceplate made by FrontPanelExpress.
In good used cosmetic condition and excellent operating condition. Asking $350 plus shipping.
