1.5 A WORD ON ADAT’s S-VHS CASSETTE TAPE
• Use only premium quality, name brand S-VHS cassette tape in the ST-120 length.
Alesis cannot overstress the importance of this. We recommend using AMPEX 489
DM Digital Mastering Audio Tape, or Alesis ADAT Mastering Audio Cassettes.
Other acceptable brands include Maxell XR-S Black, JVC XZ, 3M Master
Broadcast and ASD 40+, and TDK SP Super Pro.
• We do not recommend that you use inexpensive,
budget VHS cassettes. While they may work technically, their unpredictable quality and less
than premium formulation could decrease the reliability of your recording. Don't trust your
music with anything less than premium S-VHS tape. Inferior tapes not only jeopardize the
recordings made on them, they may shed oxide and leave behind a coating of dirt that will
interfere with future recordings, even if you switch back to premium quality tape. Defective
tape may even clog the head, requiring service.
• Accidents can happen—so digital audio, like floppy disks and hard disks, should
be backed up to prevent loss. Back up your tapes to another ADAT using the
fiber optic digital connector (section 6.1).
• Treat your tapes as the precision, fragile components that they are. Do not
expose them to extremes of heat, cold, or humidity. Never place tapes near
magnetic fields (power amps, TVs, monitors, magnets, etc.), and handle tapes
gently.
1.6 OPERATING ENVIRONMENT
1.6A Thermal Considerations in Rack Mounting
ADAT can be mounted in an equipment rack (taking up 3 rack spaces) or placed on
a table or shelf. When you install it, keep in mind that heat is the major enemy of
electronic equipment. Please observe the following:
• ADAT is designed to perform properly over a range of ambient temperatures from
10° C to +40° C (50° F to 104° F), in up to 80% non-condensing humidity. These
are not absolute limits, but Alesis cannot guarantee that ADAT will meet its
published specs or remain reliable if operated outside of these ranges.
• Always allow adequate ventilation behind ADAT. Do not seal any enclosure that
holds ADAT. It is not necessary to leave an empty rack space above or below
ADAT unless it runs hot enough to affect equipment above or below it.
1.6B Mounting on a Shelf or Non-Rack Enclosure
To mount ADAT on a shelf or other flat surface, Alesis recommends using the
enclosed stick-on feet to avoid scratching the shelf’s surface with the deck’s bottom.