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9.0 A1 Monaural Amplifier
9.1 Design
The A1 is a full range (20Hz - 20kHz) audio
power amplifier.
inputs for connection with all types of receivers
or separate audio components. The A1 is a sin-
gle channel or monaural amplifier and can be
used with Evolution subwoofer and tower prod-
ucts or to power individual Evolution monitors.
The A1 is a Class G design, which operates at
lower temperatures than other amplifier classes
and is typically more efficient. The A1 offers the
wide dynamic range and low distortion typical of
more conventional class AB designs.
9.2 Placement
The A1 amplifier may be placed on a shelf, or in
a standard 19" equipment rack using the option-
al rack ears and hardware. See instructions on
rack mounting below.
Ideally, the A1 should be placed in close prox-
imity to the receiver or surround processor.
Minimizing cable lengths reduces the chance of
noise pickup. If long runs (more than 20') of sig-
nal cable are required we recommend using the
balanced (XLR) input on the amplifier.
Note: Due to the placement of the
A1's power switch on the rear panel,
do not install the A1 in a wooden box
or similar enclosure where access to
the power switch is blocked or incon-
venient.
It provides RCA and XLR
9.3 Rack Mounting the A1 and or X1
You may need assistance to hold the A1 or X1
in place while mounting them in the rack.
Note: When rack mounting, we recommend you
leave at least one rack space between compo-
nents (particularly amplifiers) for proper cooling.
Step One: Remove the
two screws on each
side of the X1 or A1 with
the #2 Phillips screw-
driver.
Step Three: Arrange the
mounting screws included
with the rack ears and the
plastic insulating washers
as shown.
Step Four: Start all four
bolts, then tighten secure-
ly.
Step Two: Position
the rack ears over
the threaded holes.
Replace
the
two
screws and tighten
both securely.
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