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9
PREOUTS
The RD1000/1 incorporates a buffered, pass-
through preamp output section, so that additional
amplifiers can be easily added to the system.
The preamp output delivers the same signal
that is connected to the RD1000/1s inputs.
Remote
Level
Control
(RBC-1)
Mono Subwoofer Output
INPUT SECTION
(
L
)
(
R
)
(
L
)
(
R
)
PREOUTS
+12 VDC Ground Remote
Note: The preamp output signal is not affected by
the amplifier’s filter controls. If the input signal is
full-range, the preamp output will be full-range.
Note: When the “Input Voltage” switch is in its
“Low position, the level of the “Preouts” signals
matches the input signal levels (unity gain).
When the “Input Level” switch is in the “High
position, the level of the input signal is attenuated
12 dB to produce a line level signal at the
“Preouts”. This ensures a proper line level signal
output under both conditions.
If you plan to use the “Preouts” to feed a stereo
amplifier, you must connect a stereo signal to
the input of the amplifier. A mono signal into
the amplifier will result in a mono signal out of
the preamp output.
SUBWOOFER OUTPUTS
The RD1000/1 is designed to deliver power
into subwoofer loads equal to or greater than 2
ohms of nominal impedance.
The RD1000/1’s subwoofer outputs are
designed to accept 16 AWG - 8 AWG wire. To
connect the subwoofer wires to the amplifier, first
back out the set screws on the top of the terminal
block, using the supplied 2.5 mm hex wrench.
Strip 1/2 inch (12 mm) of insulation from the
end of each wire and insert the bare wire into the
terminal block, seating it firmly so that no bare
wire is exposed. While holding the wire in place,
tighten the set screw firmly, taking care not to
strip the head of the screw.
Remote
Level
Control
(RBC-1)
Mono Subwoofer Output
INPUT SECTION
(
L
)
(
R
)
(
L
)
(
R
)
PREOUTS
+12 VDC Ground Remote
You will notice that there are two “+” positive
connections and two “–” negative connections.
This is to facilitate multiple subwoofer wiring.
The two positive and two negative
connections are connected in parallel inside
the amplifier. They are not stereo outputs.
Connecting two subwoofers, each to one set of
positive and negative terminals, will result in
a parallel subwoofer connection. When only
connecting one pair of subwoofer wires, it is not
necessary to use both sets of connections.
Subwoofer loads below 2 ohms nominal are not
recommended and may cause the amplifier
to enter a protection mode.
9


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