|
The HA-160D (DAC / Headphone Amp / Preamp) The HA-160D took over 18 months to realize. Apart from the DAC chip, the entire machine was meticulously hand assembled with top grade, perfectly matched discrete components. It is powered by 5 sets of custom built low noise power supplies to eliminate noise pollution. We have also employed two custom built transformers to ensure the job was done properly. One transformer is used to power our HD Audio DAC, while the other purely supplies power to the hungry Class-A amplification circuitry. It ensures that the DAC stage and the headphone amp stage are working independently and at an optimum level, while still in complete synergy. The result is a high definition DAC, headphone amp, preamp 3 in 1 machine that is entirely uncompromised. To better serve the growing popularity of PC based audio systems, the HA-160D also features a USB input function which is compatible with both Mac and PCs. After the digital signal (0s and 1s) is converted by the DAC chip into stereo signals, an important LP (low pass) stage is need to reconstruct the analog signal from the rectangular pulses from the DAC output Any distortion and signal loss during this conversion stage is irreversible. Unfortunately, due to the lack of customer awareness of the output stage, this is where most audio companies cut their costs, and it is common to see a output stage designed around a cheap IC opamp.
      |