Installation
Mechanical considerations
The Stewart Audio DA-770-2 Series amplifier occupies just
one-half standard rack space, is only 10.6” deep and weighs
just over 3 pounds, making it easier to install and transport
than almost any other comparable power amplifier. Still some
precautions are in order.
Rack mounting of the DA-770-2 Series may be achieved by
using either the Stewart Audio RMK-70-S or RMK-70-D rack
kits. The RMK-70-S centers the amplifier in a single rack
space, while the RMK-70-D allows you to rack two amps side
by side in a single rack space. For stability always use four
screws to affix the amplifier to the rack, preferably using rack
washers to avoid cosmetic damage to the rack mount panels.
When rack mounting your DA-770-2 Series amplifiers be sure
to remove the four adhesive rubber feet from the bottom of
the unit. The DA-770-2 Series amplifiers can also be mounted
to a standard rack shelf or used as a stand alone product.
Thermal Considerations
Cooling of the DA-770-2 Series amplifiers is achieved by
Stewart’s unique whole chassis heatsink design, which utilizes
the entire chassis as a heatsink to cool the heat generating
components inside. In the event the internal ambient
temperature reaches 85 degrees centigrade, the protection
circuit will shut down the power supply until the amplifier cools
down.
Although the sophisticated thermal management system in the
DA-70 Series makes it less susceptible to overheating than
other amplifiers, it remains good practice to provide airspace
around the chassis.
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