Pioneer Elite SC-57 Operating Instructions Manual page 52

07 Playback with HOME MEDIA GALLERY inputs
Category Extension Stream
FLAC .flac FLAC
a "MPEG Layer-3 audio decoding technology licensed from Fraunhofer IIS and Thomson multimedia."
b Only streaming data from servers is concerned, so there is no extension.
52
En
Sampling frequency 32 kHz to 192 kHz
Quantization bitrate 8 bit, 16 bit, 24 bit
Channel 2 ch
Bitrate —
VBR/CBR —