And the Music App allows easy operation of tasks such as CD ripping, tag editing, import from USB/backup, USB-Audio playback, and various settings when used with Technics Music Server ST-G30. ・Main Features Simple and Intuitive Menu - DLNA Playback - USB Memory Playback *1 - CD Playback *2 - Multi Device Playlist Functions *3 - Bass/Mid/Treble Control on Technics Products *4 - Power Control and Setup Control on Technics Products *5 - Control Internet Radio(vTuner) and Spotify *5 - Control TIDAL *7 - Support MQA Technology *8 - CD ripping, tag editing, import from USB/backup, USB-Audio playback, and various settings *6 - Space Tune *9 *1 Compatible Models are SU-R1/SU-G30/ST-C700/ST-C700D/OTTAVA SC-C500/SU-C550/OTTAVA f SC-C70. *2 Compatible Models are OTTAVA SC-C500/SU-C550/OTTAVA f SC-C70. *3 Unable to include USB memory/CD as multi device playlist. *4 Will not function when using Bluetooth as a music source. *5 Compatible Models are SU-G30/ST-C700D/OTTAVA SC-C500/SU-C550/OTTAVA f SC-C70. *6 Compatible Model is ST-G30. *7 Compatible Models are SU-G30/ST-C700D/OTTAVA SC-C500/SU-C550/OTTAVA f SC-C70. *8 Compatible Model are SU-G30/ST-C700D. *9 Compatible Model is OTTAVA f SC-C70. ・Compatible Models -SU-R1/Network Audio Control Player -SU-G30/Network Audio Amplifier -ST-C700/Network Audio Player -ST-C700D/Network Audio Player -OTTAVA SC-C500/CD Stereo System -SU-C550/CD Stereo Amplifier -OTTAVA f SC-C70/Compact Stereo System -ST-G30/Music Server Volume control and Bass/Mid/Treble levels adjustment are only available with the following combinations of Technics products. - SU-R1 together with SE-R1 - SU-G30 - ST-C700/ST-C700D together with SU-C700 - OTTAVA SC-C500 - SU-C550 -OTTAVA f SC-C70