The M Series of products from NAD present some interesting options. The M50 Digital Music Player ($2,499) combines a CD Player/Ripper and Network Player and is built on a customized Linux software/hardware implementation. Supported file formats include FLAC, ALAC, WMA, MP3, AAC, and OGG up to 24/192. Inputs include USB Type B to connect to the M52 Digital Music Vault, 2 USB Type A for hard drive or flash drive, Ethernet, WiFi 802.11n/g 2.4G, and outputs include Coax S/PDIF, Toslink, HDMI 1.4 (Audio only), and Digital AES/EBU. When used in conjunction with the M52, an inserted CD can be played or automatically ripped to the Music Vault. The M52 Digital Music Vault ($1,999) includes three HDDs for 3TB of total storage in a RAID 5 array for 2TB of usable memory. Last but not least is the M2 Direct Digital Amplifier ($5,999) that combines a 24/192-capable DAC, preamplifier, and 250W/channel amplifier. Analog inputs include balanced and single ended RCAs, and on the digital side AES/EBU, Coaxial X 2, and Optical X 2.