The RA-11 and RA-12 will play a wide variety of popular audio file formats, depending upon the type of connection being used. The list below details what files will play with each connection type:

• Front Panel USB Input (w/ iPod or iPhone): Any format supported by the Apple device.
• Front Panel USB Input (w/ Bluetooth Dongle): Any format supported by the sending device.
• Front Panel USB Input (w/ USB Flash Drive): MP3, WAV, WMA, Ogg Vorbis (48kHz 16-bit maximum)
• Coax/Optical Digital Inputs: LPCM (192kHz 24-bit maximum)