
SAFETY INFORMATION
Please read this booklet to ensure that you are getting the most out of your PSB product and music.
CAUTION
Risk of Electrical Shock!
DO NOT OPEN!
The lightning flash with arrowhead symbol, within the equilateral triangle, is intended to alert the
user to the presence of uninsulated dangerous voltage within the product’s enclosure that may be
of sufficient magnitude to constitute a risk of electric shock.
The exclamation point within an equilateral triangle is intended to alert the user to the presence
of important operating and maintenance (servicing) instructions in the literature accompanying the
subwoofer amplifier.
!
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A. Read these instructions.
B. Retain these instructions for your records.
C. Obey all warnings.
D. Follow all instructions.
E. Do not use this subwoofer amplifier near water.
F. Clean with dry cloth.
G. Do not block any ventilation openings. Install in
accordance with the manufacturer’s instructions.
H. Do not install near any heat sources such as radiators,
heat registers, stoves, or other devices (including
amplifiers) that produce heat.
I. Do not compromise the safety of the polarized or
grounding type plug. A polarized plug has two blades
with one wider than the other. A grounding type plug
has two blades and a third grounding prong. The
wide bladed or the third prong are provided for your
safety. If the provided plug does not fit into your outlet,
consult an electrician for replacement of the obsolete
outlet.
J. Protect the power cord from being walked on or
pinched, particularly at plugs, convenience receptacles,
and the point where the power cord exits from the
subwoofer amplifier.
K. Only use attachments/accessories specified by the
manufacturer.
L. Use only with the cart, stand, tripod, bracket, or
table specified by the manufacturer, or sold with the
apparatus. When a cart is used, use caution when
moving the cart/apparatus combination to avoid injury
from tip-over.
M. Unplug the subwoofer amplifier during lightning
storms or when unused for long periods of time.
N. Refer all servicing to qualified service personnel.
Servicing is required when the apparatus has been
damaged in any way, such as the power-supply
cord or plug is damaged, liquid has been spilled or
objects have fallen unto the subwoofer amplifier,
the subwoofer amplifier has been exposed to rain
or moisture, does not operate normally, or has been
dropped.
O. The subwoofer amplifier shall be used at maximum 45
degree C ambient temperature.
P. To reduce the risk of electrical shock, do not open the
subwoofer amplifier. For safety reasons it is only allow
to the opened by qualified service personnel.
Q. WARNING: To reduce the risk of fire or electric shock,
do not expose this subwoofer amplifier to rain or
moisture. Additionally, the subwoofer amplifier shall
not be exposed to dripping or splashing and no objects
filled with liquids shall be placed on the subwoofer
amplifier.
R. The AC mains plug is used as the subwoofer amplifier
and shall remain readily operable.
S. The product shall be used on open bench.
T. No naked flame sources, such as lighted candles,
should be placed on the subwoofer amplifier.
U. The subwoofer amplifier should be connected to a
AC mains socket outlet with a protective ground
connection.
V. Ventilation should not be impeded by covering the
ventilation openings with items, such as newspapers,
table-cloths, curtains, etc.
W. This subwoofer amplifier is suitable for use in tropical
climates.

FEATURES
D E F G H I J K L M N O
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0
A POWER
Red: Off/Standby
Blue: On/Operating
B. STATUS DISPLAY MENU
Displays current function/setting.
C. SELECTION KNOB/ROTARY ENCODER
Navigates and controls menu display functions.
D. RCA LINE LEVEL INPUTS
LFE IN: Connects the left female RCA input to an LFE
output connection on a receiver or pre-amp processor.
L/R IN: Connects the left and right female RCA input to
the left and right front output connections on a receiver
or pre-amp processor.
E. RCA LINE LEVEL OUTPUTS
OUT: Connects additional amplifiers.
F. 12V TRIGGER IN/OUT
12V TRIGGER IN: Turns on the amp when a 12V signal
is received from another 12V trigger device.
12V TRIGGER OUT: Sends a 12V signal to another 12V
trigger device.
H. MINI USB PORT
Reserved for service use.
I. OPERATION MODE SWITCH
UPDATE: For service use only.
OPERATE: Normal function.
J. SPEAKER OUTPUTS
Connects the speaker wires to the binding posts.
NOTE: Total impedance (SUB 1 + SUB 2) should not be
less than 4Ω.
K. SERIES (OUTPUT 2) SWITCH
Enables the output 2 connector and puts the outputs in
series.
L. VOLTAGE SELECTOR
Selects the appropriate input voltage setting: 100-120V
or 220-240V.
M. AC POWER IN
IEC power cord.
N. FUSE
Additional T8AL/250V fuse included for servicing.
G. IR PORT
Connects IR device.
O. MASTER POWER SWITCH
Switch between on/off.

MENU DISPLAY
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A B
C E
D
A. VOLUME DISPLAY
D. NIGHT MODE
Displays if night mode is ON. No display if night mode
B. VOLUME LEVEL Displays the volume level.
is OFF.
NOTE: Lock mode overrides power mode.
E. SOUND MODE
C. POWER MODE
Displays the power control mode for the amplifier. No
Displays the current sound mode setting. No display if
sound mode is set to BYPASS.
display if FRONT PANEL power control mode is selected. NOTE: Only the volume level can be adjusted while
on the main menu screen.
MENU FUNCTION SCREEN
1. Press the selection knob to enter the function sub menu.
2. Turn the selection knob to cycle through each sub menu option.
3. Press the selection knob to adjust the menu function.
4. An arrow (greater-than symbol) will appear when levels can be adjusted.
5. Press the selection knob again to exit the adjustment menu and turn the
knob to advance to the next sub menu function.
6. Once reaching the last option in the function sub menu, press to exit to
the main menu.
NOTE: The sub menu will scroll continuously in both directions. To exit, scroll
either direction until reaching the “Menu Exit” screen and press the knob.
Selector Knob
Turn ArrowPress
A. CROSSOVER: 40Hz–250Hz/LFE
Selects the low pass filter for the amplifier
NOTE: Set LFE when using the LPF on an AVR. DEFAULT: LFE
B. SPEAKER EQ: FLAT/CSIW SUB 10/CSIW SUB 28/CWS8/CWS10
Selects the EQ mode for the amplifier.
FLAT: 0 reference setting (unmodified sound).
CSIW SUB 10/CSIW SUB 28/CWS8/CWS10: Preset EQ
optimized by subwoofer type.
DEFAULT: FLAT
C. PHASE: 0–315° (45° steps)
Contours subwoofer performance to match speaker performance and
acoustic environment.
DEFAULT: 0°

D. SOUND MODE: BYPASS/MUSIC/MOVIE
Selects media preference.
BYPASS: Reference
MUSIC: Boosts +1.5dB @ 50Hz
MOVIE: Boosts +3dB @ 30Hz
DEFAULT: BYPASS
E. NIGHT MODE: ON/OFF
ON: Limits high and low sound threshold for night time viewing. Reduces
maximum power to 250W and relative sub level by 3dB.
OFF: No limiting
DEFAULT: OFF
F. POWER CONTROL: FRONT PANEL/12V TRIGGER/AUDIO SENSE
Sets the power on state.
FRONT PANEL: Always on. Amplifier does not turn off automatically.
Turn until ON/OFF using the front panel power button.
12V TRIGGER: Amplifier turns on when 12V signal is detected
and off when 12V signal is absent.
AUDIO SENSE: Audio Sense enabled. Amplifier turns on when audio
signal is detected. Unit enters standby mode if no signal is detected after
15 minutes.
DEFAULT: FRONT PANEL
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G. IR DEVICE ID: 1/2/3/4
Assigns an IR ID for each amplifier appearing in a system set up. Refer to
the support tab of the product page to download the Control Protocol.
DEFAULT: 1
H. LOCK CONTROLS: ON/OFF
Locks the controls to prevent accidental changes in settings. Press and
hold knob for 10 seconds to unlock.
ON: Locks controls
OFF: Allows adjustment of settings
DEFAULT: OFF
I. FACTORY RESET
Resets all functions to default settings. Push the knob to enter the reset
menu, turn the knob once to select firmware reset, then push once more
to reset to factory settings.
NOTE: Firmware version is displayed on screen when selected.
J. MENU EXIT SCREEN
Press the selection knob to exit to the main menu screen, or turn the
selector knob to scroll to the beginning of the sub menu. The selector
knob will advance the sub menu continuously in both directions. To exit
the sub menu, scroll either direction until reaching the “Menu Exit”
screen and press the knob.
NOTE: The volume level can be adjusted immediately once exiting the
sub menu to the main menu.