Rockbot is the highest fidelity streaming commercial music service on the market. We do not compress, manipulate, or adjust our music files from the labels before our final format. All audio tracks are normalized for consistent volume levels across artists and songs.
We are currently using a pressure balanced, mono, 64Kbps AAC in MPEG4 audio
compression (audio quality equivalent to 128Kbps MP3). This is the same output with HDMI or Line-level audio out on our players. To quickly test fidelity feel free to connect to a home theatre system with HDMI.