Hoontech offered a so called "Value Bracket" a small PCB which could be connected to the soundcard. My idea was to convert this PCM signal with a hand of chips to S/PDIF to attain a true digital output independent from the media in the player.īeyond the player as a first prototype I decided to use the digital transmitter of the Hoontech DSP24 Soundcard. This feature is so remarkable because the DV-575A (578A) is the only player I know who sends ONLY PCM signals to the D/A converters. With this trick inexpensive D/A converters (PCM1742) can be used in the unit. It converts the DSD-signal hosted on SACDs digitally to 88.2kHz PCM (DSD to PCM conversion). This player is cheap (<200Euro) and has one UNIQUE feature. Some time ago pioneers started to sell the DV-575A player in Germany which is – despite of the SCART-adapter – exactly the same unit as the DV-578A sold elsewhere in the word.
My goal is keeping the signal as long as possible in the digital domain eliminating the effects of intermediate D/A-A/D conversion. All these conversions lead to a minor sound quality defined by the weakest element of your chain. Typically the analog signal in the surround receiver is converted back to digital and then again back in the analog domain. So the quality of the integrated D/A converters determine the quality of the output.
This leads to the funny development that the players have to output the hires audio in analog via their built in D/A converters. As you know digital output of SACD and DVD-A Players is restricted due to copyright reasons.
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