RUSSOUND ACP-1DU Instruction Manual
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ACP-1DU
Instruction Manual
Technical Information
• Power Rating: 126W, 42W RMS, continuous
• Dimensions: 2-5/8”Wx1-3/4”Hx2-5/8”D
(fits standard double-gang junction box)
• Connectors: Removable screw type
Accepts up to 14 gauge wire
• Attenuation: 12 steps, including “off”
Total attenuation of 43dB
Wiring Instructions (Refer to Diagram)
CAUTION: DO NOT REVERSE THE INPUT AND
OUTPUT CONNECTIONS!
STEP 1: Strip about 1/4” of insulation from the ends of all wires to be connect-
ed to the attenuator. If necessary, twist the exposed conductors to
ensure that no loose strands exist.
STEP 2: Connect the leads from the “A” AMPLIFIER to one of the connectors
labeled INPUT, with the left L+ and L- wires inserted in the appropri-
ately marked openings in the plug. Tighten the screws firmly, making
sure that the exposed bare wire is engaged, not the insulation!
NOTE:To avoid problems with certain types of amplifiers employing bridging
outputs or isolated grounds, the L and R (-) grounds are separate. If a 3
wire system or common ground amplifier is used, the L- and the R-
inputs of the ACP-1 should be jumpered together. If one channel
ground is open, that channel will appear to drop out when the atten-
tuation control is rotated. The L- and the R- connections are placed
adjacent to facilitate such a connection, and also reduce chances for
troublesome shorts.
STEP 3: Connect the leads from the “B” Amplifier to the remaining connector
marked INPUT in the same manner described in STEP 2 and the fol-
lowing note, if applicable.
STEP 4: As outlined in STEP 2, connect the Speaker wires to the connector
labeled OUTPUT, observing channel and polarity identification.
STEP 5: Insert the modular connectors into the appropriate sockets on the PC
board. Make sure that the plugs marked INPUT (from amp) connect
to the sockets marked INPUT (from amp) on the attenuator! Insert
firmly until assembly is fully seated and the locking tabs are engaged.
STEP 6: Install the completed assembly in the junction box. Insert carefully to
avoid excessive strain on the plugs. If necessary, pre-dress the wires for
easier mounting.
L
+
L
–
R
–
R
+
L
+
L
–
R
–
R
+
L
+
L
–
R
–
R
+
AMPLIFIER/RECEIVER
AMPLIFIER/RECEIVER
Connection Diagram
Parts List
(1) Volume Control
(3) Plugs
(4) Mounting Screws
(1) Instruction
Limited Warranty
The Russound ACP-1DU is fully guaranteed for a lifetime warranty from the date
of purchase against all defects in materials and workmanship. During this period,
Russound will replace any defective parts and correct any defect in workmanship
without charge for either parts or labor. For this warranty to apply, the unit must be
installed and used according to its written instructions. If service is necessary, it
must be performed by Russound. The unit must be returned to Russound at the
owner’s expense and with prior written permission. Accidental damage and ship-
ping damage are not considered defects under the terms of the warranty.
Russound assumes no responsibility for defects resulting from abuse or servicing
performed by an agency or person not specifically authorized in writing by
Russound. Damage to or destruction of components due to improper use voids
the warranty. In these cases, the repair will be made at the owner’s expense. To
return for repairs, the unit must be shipped to Russound at the owner’s expense,
along with a note explaining the nature of the service required. Be sure to pack in
a corrugated container with at least 3 inches of resilient material to protect the unit
from damage in transit.
Wall Mount
Stereo Volume
Control with
A / B Switch