5
Amplifier Controls and Setup
This section describes the functions and/or use for each of the amplifier controls located on the
back of the subwoofer. See page 7 for the CT Series Amplifiers Control Diagrams; page 8 for the
Signature Series and MC Series Amplifiers Control Diagrams.
1. Voltage Selector Switch:
Before connecting the amplifier to any power source make
sure the AC Voltage Selector is set to either 115V or 230V to match the power voltage
in your area.
WARNING! If the voltage setting does not match the AC power supplied, damage to
the Subwoofer Amplifier may result.
2. Volume/Level Control:
The volume/level control should be at the minimum setting (all
the way counter-clockwise) before plugging the subwoofer into an AC wall socket. Once
plugged in, turn the level control up one quarter of a turn (9 o’clock position) for an
initial setting. The level control may be adjusted while playing to match the subwoofer
level with the rest of the system.
IMPORTANT! The volume control should be at the minimum setting (all the way counter-
clockwise) before plugging the subwoofer into an AC wall socket.
3. Crossover Frequency Control:
The variable crossover frequency control allows you to
set the low-pass crossover point of the subwoofer anywhere from 50-160 Hz. If using
these inputs, experiment with setting the crossover frequency control at highest setting
initially. Increasing the crossover frequency will allow more mid-bass output from the
subwoofer. Decreasing the frequency will allow only deeper bass from the subwoofer.
NOTE:
Read the Important Notice on page 3 regarding bass management.
Attach Stabilizing Feet
Some RBH Sound Subwoofers come with stabilizing feet. To install, place each foot
so the center hole of the foot is over each pilot hole on the bottom of the cabinet.
Use the supplied screws to attach the foot to the cabinet, paying close attention
to the fact that the pilot holes are drilled on an angle. This is done so the feet will
be pulled in tight against the speaker cabinet. Install either the supplied spike or
rubber mount as necessary into the threaded insert on the bottom of the feet.
