M4A vs WAV

WAV files are a higher quality file, uncompressed at 16bit/44.1KHZ, which is a CD quality file.  M4A's are compressed files though still at a high quality at 320kbps, which is the quality of much of what you download on iTunes.  CustomMix files are created from source files on our server from very high quality WAVs at 16bit/44.1KHZ or higher to ensure you're receiving a great sounding audio file. 


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