Introduction (with some additional information about this product /specs, review/ and about other ldac products). It is BT4.2 LDAC/AAC/Aptx receiver based on ES9118 SABRE HiFi SoC with an impedance switch, that is currently available in Japan only, but some units are available online. Learn about LDAC's compression algorithm here. It is an intelligently operated variable bitrate lossy BT codec that is supposed to transfer CD quality audio (16bit 44.1kHz) without a data loss under optimal signal strength conditions when run in Quality priority mode. It is computationally demanding, as it analyzes audio in advance during playback to apply optimal compression settings variably for optimal wireless data transfer, and in combination with DSEE HX software upscaler Sony claims, that it can successfully restore some of the data, that were cut out from HiRes audio sources (upto 24bit 96kHz).