Developing an ultra high level DAC requires special attention to not only the digital circuits, but even more significantly, all the analog aspects of the design as well. The DAC 5.1 signature was developed from the ground up to focus on every aspect of digital reproduction that will ultimately have an impact on sound quality.
All the Audio Note DACs use the AD1865 chip and support RedBook 16/44Khz plus 24/96Khz files. 192Khz files will pass through the DAC and use 96Khz processing. We have found that when utilising a high high quality resistor ladder DAC on RedBook and 24/96 the result is superior to higher resolution files processed by Delta-Sigma designs. In a resistor ladder architecture precision laser trimmed resistors are used for each digital bit in order to create the analog voltage from a passive circuit.
Audio Note considers this the ONLY way to successfully build a DAC for audiophile level systems. The alternate and more widely used method is the less costly and easier to implement Delta-Sigma upsampling and oversampling architecture where a computer algorithm decides what the output voltage will be and what your ears are going to listen to.
Remember more sampling means more noise and thus many additional strategies have to be employed in Delta-Sigma designs to combat this including noise rejection & complex filtering algorythms. In our DAC we preserve the integrity of the original signal in the resistor ladder domain and immediately transfer this through the I/V transformers directly to the analog output stage. The results – detail, smoothness and no listening fatigue. With the release of the DAC 5.1 signature ANKits is now producing one of the worlds finest DACs at any price. Enquire to reserve yours.
Contact us for details on our new USB add on component for the DAC 5.1 signature. It can be operated as an internal board or externally to support a computer based source.