JBL SUB140P/230-C User manual

suB140P/230-c

150-Watt, 8" (200mm) Powered Subwoofer

thank You For choosIng thIs JBl® Product

Your new JBL® SUB140P/230-C 150-watt powered subwoofer
incorporates an 8" (200mm) down-firing cone transducer and
a built-in high-performance 150-watt amplifier that deliver the
powerful, dynamic and accurate low-frequency performance that
makes
your film soundtracks and music come alive. And with line-level
and LFE inputs, adjustable crossover and phase controls and au­tomatic turn on/off, the SUB140P/230-C is also simple to connect
and set up.

Included Items

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We’re confident that this JBL subwoofer will provide every note of
enjoyment that you expect – and that when you think about pur­chasing additional audio equipment for your home, car or office,
you will once again choose JBL products.

This quick-start guide contains all the information you need to set
up, connect and adjust your new subwoofer. For more in-depth
information, go to our Web site: www.jbl.com.

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quIck-start guIde

suBwooFer rear-Panel controls and connectIons

This Class B digital apparatus complies with Canadian ICES-003.
Cet appareil numérique de la classe B est conforme à la norme
NMB-003 du Canada.

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On/Standby

LED

Crossover

Control

Phase Switch

Power-On

Mode Switch

Subwoofer

Level Control

Line-Level In

LFE Connector

Line-Level In

L/R Connectors

Power Switch

Power Cord

On/Standby LED: When the Power-On Mode switch is in the “Auto”
position, this LED indicates whether the subwoofer is in the On or Standby
state:

• When the LED glows green, the subwoofer is turned on.

• When the LED glows red, the subwoofer is in the Standby mode.

When the Power switch is set to “Off,” the LED will not light up, no matter
what setting the Power-On Mode switch is in.

Crossover Control: This control determines the highest frequency at
which the subwoofer reproduces sounds. The higher you set the Cross­over control, the higher in frequency the subwoofer will operate and the
more its bass will “overlap” that of the satellite speakers. This adjust­ment helps achieve a smooth transition of bass frequencies between the
subwoofer and the satellites for a variety of different rooms and subwoofer
locations.

NOTE: The Crossover control functions only when you are using the Line­Level In L/R connectors. The Line-Level In LFE connector bypasses the
subwoofer’s built-in crossover and Crossover control.

Phase Switch: This switch determines whether the subwoofer driver’s
piston-like action moves in and out in phase with the satellite speakers. If
the subwoofer were to play out of phase with the satellite speakers, the
sound waves from the satellites could partially cancel out the sound waves
from the subwoofer, reducing bass performance and sonic impact. This
phenomenon depends in part on the placement of all the speakers relative
to each other in the room.

Power-On Mode Switch: When this switch is set in the “Auto” posi­tion and the Power switch is set to “On,” the subwoofer will automatically
turn itself on when it receives an audio signal and will enter the Standby

mode when it has gone without receiving an audio signal for 20 minutes.
When this switch is set in the “On” position, the subwoofer will remain on
whether or not it is receiving an audio signal.

Subwoofer Level Control: Use this control to adjust the subwoofer’s
volume. Turn the knob clockwise to increase the volume; turn the knob
counterclockwise to decrease the volume.

Line-Level In LFE Connector: This input bypasses the subwoofer’s
internal crossover circuitry, so use it only with a receiver or processor sub­woofer output that has been low-pass filtered. If your receiver or processor
does not have a dedicated subwoofer output that is low-pass filtered, use
the subwoofer’s Line-Level In L/R Connectors (see below) instead.

Use the supplied mono RCA cable (purple connectors) to connect the
Line-Level In LFE connector to the dedicated subwoofer output of a
receiver or preamp/processor.

Line-Level In L/R Connectors: These inputs pass through the subwoof­er’s built-in crossover. Use them if your receiver or preamp/processor does
not have a dedicated subwoofer output that is low-pass filtered.

Power Switch: Set this switch in the “On” position to turn the subwoofer
on. The subwoofer will then be in On or Standby mode, depending on the
setting of the Power-On Mode switch.

Power Cord: After you have made and verified all subwoofer and speaker
connections described in this manual, plug the power cord into an ac­tive, unswitched electrical outlet for proper operation of the subwoofer.
DO NOT plug this cord into the accessory outlets found on some audio
components.

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