2 ©2008 • All rights reserved.
DH44 4 Source, 4 Zone Digital Audio Router
Damage Requiring Service—These appliances should be serviced by qualified service personnel when:
• A power supply connection or a plug has been damaged or
• If liquid has been spilled into the appliance or objects have fallen into the appliance or
• The appliance has been exposed to water or moisture or
• The appliance does not appear to operate normally or exhibits a marked change in performance or
• The appliance has been dropped or the enclosure damaged.
Replacement Parts—When replacement parts are required, be sure the service technician has used replacement
parts specified by the manufacturer or that have the same characteristics as the original part. Unauthorized substitutions
may result in fire, electric shock, or other hazards. The Master Control Unit battery should be replaced only after
turning the power off and only by an authorized installer.
Safety Check—Upon completion of any service or repairs to this audio product, ask the service technician to perform
safety checks to determine that the audio product is in proper operating condition.
Lightning Storms—Unplug this apparatus during lightning storms or when unused for long periods of time.
Attachments and Accessories—Use only attachments/accessories specified by the manufacturer.
Cart, Stand, Tripod, Bracket or Table—Use only with a cart, stand, tripod, bracket or table specified
by the manufacturer, or sold with the apparatus. When a cart is used, use caution when moving the
cart/apparatus combination to avoid injury from tip over.
Disconnect Device—Where the mains plug or an appliance coupler is used as the disconnect
device, the disconnect device shall remain operable.
NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of
the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installa-
tion. This equipment generates, uses and can radiate radio frequency energy and, if not in-stalled and used in accordance with
the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will
not occur in a particular installation.
If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the
equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:
Reorient or relocate the receiving antenna.
Increase the separation between the equipment and receiver.
Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
Consult the dealer or an experienced radio/TV technician for help.
CAUTION: Changes or modifi cations not expressly approved by ATON could void the user’s authority to operate the equipment
Caring For the DH44
Clean only with a dry soft cloth.
It is important to properly care for your DH44 Digital Audio Router. Follow these guidelines to ensure your device is preserved
and protected.
Do not expose the DH44 to rain, liquids or moisture for an extended period of time.
Do not expose the DH44 to temperature extremes.
Do not place any objects on top of the DH44 to prevent chassis damage.
Operating Temperatures & Environments
Operating Temperature: 32-104°F (0-40° C)
Humidity: 0-90%
Precautions
Always exercise care when operating the DH44 Digital Audio Router.
Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including
amplifiers) that produce heat.
In the unlikely event that smoke, abnormal noise, or strange odor is present, immediately power the DH44
off. Please report the problem to your dealer immediately.
Never attempt to disassemble the DH44. You will lose any product warranty on the unit.
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