Before you begin2 — Operation GuideInstalling an internal hard diskYou must install a hard disk in the AW4416 before using it. If you attempt to usethe AW4416 without installing a hard disk, the recorder section and mixer sec-tion will fail to operate correctly, and the AW4416 will be damaged as well.About the internal hard diskOn the AW4416, all data necessary for reproducing a composition (mixer set-tings, recorder settings, audio data etc.) is stored on the hard disk as a “song.”An internal hard disk is attached to the ADP25H 2.5 inch hard disk adapter andinstalled in the 2.5" HARD DISK DRIVE slot located on the rear panel. Hard diskswith the following specifications can be used.• Type: IDE 2.5 inch (attachment location conforms to SFF-8201)• Thickness: no particular limitation• Capacity: no particular limitation (however, the AW4416 can use a maximumcapacity of 64 GB)• Models known to work: consult your local Yamaha distributor or refer to thewebsite at the following URL.• By “models known to work,” we mean commercially available models thatYamaha has obtained, installed in the AW4416, and successfully tested bymeans of various operational tests. However, we cannot take into accountslight differences in performance that may occur due to the manufacturing tol-erances of each manufacturer.• Hard disks are precision devices. Strong physical shock, magnetism, staticelectricity, or excessive current etc. can damage the data on a hard disk. Youmust use media such as an external SCSI device or CD-RW to backup yourimportant musical data.• Please be aware that Yamaha Corporation will accept no responsibility for anydamages, neither direct nor indirect, resulting from the use of any of the abovehard disks.