JBL BassProTM II User Manual

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THANK YOU
for choosing the JBL BassPro™II. BassPro II has been designed to deliver great bass performance from a compact, easily installed powered subwoofer enclosure.
In order that we may better serve you should you require warranty service, please retain your original sales receipt and register your BassPro II online at www.jbl.com.
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INSTALLATION
WARNING: Playing loud music in an automobile can hinder your ability to hear traffic and permanently dam­age your hearing. We recommend listening at low or moderate levels while driving your car. JBL accepts no liability for hearing loss, bodily injury or property damage resulting from the use or misuse of this product.
INSTALLATION WARNINGS AND TIPS:
• Always wear protective eyewear when using tools.
• Disconnect the vehicle’s negative (–) battery terminal before starting the installation.
• Check clearances on both sides of a planned mounting surface. Be sure that screws or wires will not puncture brake lines, fuel lines or wiring harnesses, and that wire routing will not interfere with the safe operation of the vehicle.
• When making electrical connections, make sure they are secure and properly insulated.
• If BassProII’s fuse must be replaced, be sure to use the same type of fuse and current rating as that of the original.
CHOOSING A MOUNTING LOCATION FOR BASSPRO II:
Choose a mounting location that doesn’t interfere with cargo, the fold­down rear seat or the trunk lid. The best location is usually a corner of the trunk or cargo area, as shown in
Figures 1 and 2.
Securely mount BassProII to the mounting surface using the four enclosed self-tapping screws. Choose a mounting location in the front of the vehicle for the remote level control.
Figure 1.
Figure 2.
Figure 3.
Bottom view of BassProII.
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INSTALLING THE REMOTE
CONNECTING THE SUBWOOFER LEVEL CONTROL TO BASSPRO II
The Subwoofer Level Control may be mounted under the dash or dismantled and mounted in the dash for a factory­installed appearance.
UNDER-DASH MOUNTING
Select a mounting location that allows easy access to the control while driv­ing. Using the Subwoofer Level Control as a template, mark and drill holes in the mounting surface. Attach the Subwoofer Level Control using the mounting screws provided (Figure 4).
IN-DASH MOUNTING
Disassemble the Subwoofer Level Control by removing the two Phillips­head screws on the front panel, rear panel and on top. Remove the Subwoofer Level Control’s bottom and side panels. Slide the Subwoofer Level Control’s PC board forward to release the RJ11 connector from the back panel and remove the board along with the potentiometer, knob and connector as a single assembly.
Choose a mounting location that allows easy access to the control, and provides 1-3/4" clearance behind the mounting surface. Drill a 9/32" hole in the mounting surface. Feed the Subwoofer Level Control’s potentiometer shaft (with the knob removed) through the hole and use the nut and washer provided to hold the control in place (Figure 5).
Route the cable behind the dash or other interior panels and under the carpet. Do not route the cable outside the vehicle. Connect the RJ11 cable between the RJ11 receptacle on the BassProII and the receptacle on the Subwoofer Level Control (Figure 6).
Socket
for
Control
Cable
Level
Control
Circuit
Board
Washer
Hex Nut
Knob
Figure 4. Under-dash mounting of the
Subwoofer Level Control.
Figure 5. In-dash mounting of the Subwoofer Level Control.
Figure 6. Subwoofer Level Control electrical
connection.
Knob
Hex Nut
Washer
Level-
Control
Circuit
Board
Socket
for
Control
Cable
BassProII Connection Panel
Control
Cable
Rear View of Level-Control Circuit Board
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POWER CONNECTIONS
Connecting power to BassProII is shown in Figure 7. Please observe the following installation tips:
When using the high-level input con­nections, BassProII will automatically turn on when you turn on your radio. In this case, the remote (REM) con­nection is not needed. Use at least #20 AWG speaker wire for speaker-level input connections.
Use at least #12 AWG wire for the Positive Battery (BATT+12) and Ground () connections. If needed, use at least #20 AWG wire for the remote (REM) turn-on connection.
Connect BassProII’s “BATT +12V” terminal directly to the battery’s posi­tive (+) terminal. Install a fuse holder, with a 20A fuse, within 18" of the bat­tery’s positive (+) terminal.
BassPro
(right-side panel)
Chassis Ground
(Bare Metal)
Source Unit
Battery
Fuse 20 A
18"
Remote
Turn-On
Route all power wires through a grom­met in the vehicle’s firewall. If a factory grommet is not available, install one. Connect a short ground wire from BassProII’s ground terminal ( ) to the nearest bare metal surface. For a good connection, use sandpaper to clear paint from the metal surface and use a screw with a lock (star) washer.
The remote (REM) connection requires a +5 to +12 Vdc signal for BassProII to turn on when using the line-level connections. Most head units with preamp outputs provide this remote voltage signal. As an alternative, connect this terminal to a switched ignition circuit.
Figure 7.
Chassis Ground
(Bare Metal)
Battery
Source Unit
Remote Turn-On
Fuse 20A
18"
BassProII Connection Panel
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APPLICATIONS
BassProII is equipped with two line­level (RCA) inputs and two high-level inputs. To help you plan the installation of BassProII, we have included two system application diagrams in Figures 8 and 9. For more installation suggestions, contact your local authorized JBL car audio dealer.
Splices
(not supplied)
Splices
(not supplied)
Figure 9. Line-level connections with two outputs (single full-range or subwoofer).
Figure 8. High-level connections. Connect BassProII’s high-level inputs to either the front or rear speaker outputs of your head unit (splice crimps not included).
BassProII
Connection Panel
Subwoofer Level Control
BassProII
Connection Panel
Subwoofer Level Control
Left Speaker
Right Speaker
Source Unit
Source Unit
LF Speaker
RF Speaker
LR Speaker RR Speaker
RCA Stereo Cables
(not supplied)
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CONTROLS AND FUNCTIONS
BassProII has controls and indicators that help simplify sonic integration with almost any vehicle’s unique acoustic properties. These controls are located on the amplifier panel, as shown in Figure 10.
Power LED Gain Control Crossover Remote Bass Control Auto Turn-On
POWER LED: This indicator will glow red when the BassProII is operating.
GAIN CONTROL: Use this control to adjust the relative volume (loudness) of BassProII with the other speakers in the vehicle.
CROSSOVER: Use this control to adjust the amount of high-frequency information present in BassProII’s out­put. A lower value signifies less high­frequency content.
3. Turn the head unit ON and play a selection of your favorite music track that has substantial bass.
4. Adjust the CROSSOVER control counterclockwise, until you hear only low-frequency information. Example – you should not hear vocals coming from BassProII when seated in the normal listening position.
5. Adjust the BASS CONTROL either clockwise or counterclockwise to suit your taste, and to avoid audible distortion.
6. If you elect not to install the Remote Bass Control, adjust the GAIN control to the maximum level that provides undistorted output from the BassProII, with the head unit’s volume control at its 3 o’clock setting.
NOTE: In most cases the above steps will provide you with satisfactory results. However, the actual process may require several readjustments of each control, since the settings will interact with one another. If necessary, consult your authorized JBL car audio dealer for help in tuning your system.
AUTO TURN-ON: For speaker­level connections, used this switch to activate (or deactivate) BassProII’s automatic turn-on circuit. For most speaker-level applications, slide the switch to the AUTO position. If you prefer to use the remote (REM) connection, slide the switch to the OFF position.
REMOTE BASS CONTROL: Use this RJ-11 jack
to connect the supplied remote bass control.
SETTING THE CONTROLS:
1. Make sure the head unit is off and VOLUME control is set to minimum.
2. On BassProII’s amplifier panel, set the CROSSOVER to its maximum frequency of 120Hz, as shown in
Figure 10.
NOTE: If using the REMOTE BASS
CONTROL, set GAIN to maximum and set the BASS CONTROL to the midpoint.
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Figure 10.
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TROUBLESHOOTING
PROBLEM CAUSES AND SOLUTIONS
POWER LED is not lit. 1. Fuse is blown and needs
replacement.
2. Head unit not functioning properly.
3. Check remote turn-on, power and ground connections.
POWER LED is lit but there is no bass. 1. Inputs are not connected. Check
connections.
2. Head-unit fader controls are not set properly. Adjust head-unit controls to feed audio signals to BassProII.
3. Incorrect GAIN control setting.
Output sounds muddy or distorted. 1. GAIN is set too high.
2. Bass level is set too high on head unit.
3. Head unit output is distorted or blown. See your authorized JBL car audio dealer.
Output gets louder when the head-unit Using speaker-level connection: one of balance is adjusted to L or R. the speaker connections is reversed
(+/–). Reverse one channel.
POWER LED remains ON after system Speaker-level connections have a five­is turned off. minute turn-off delay. Check the unit at
a later time.
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Amplifier power: 100 Watts Frequency response: 20Hz – 120Hz Fuse rating: 20A Max current draw: 12A Idle current draw: <800mA Input sensitivity: 50mV to 4V Line-level input;
1V to 16V universal interface Crossover frequency: 70Hz – 120Hz Crossover slope: 12dB Dimensions (L x W x H): 16-1/8" x 9-1/2" x 12-1/4"
(includes mounting feet) (410mm x 242mm x 312mm)
Features, specifications and appearance are subject to change without notice.
SPECIFICATIONS
Declaration of Conformity
We, Harman Consumer International
2, route de Tours 72500 Chateau-du-Loir France
declare in own responsibility that the product described in this owner’s manual is in compliance with technical standards:
EN 55013:2001 EN 55020:2002
Emmanuel Millot
Harman Consumer International
Chateau-du-Loir, France 3/04
JBL Consumer Products 250 Crossways Park Drive, Woodbury, NY 11797 USA
516.255.4JBL (4525) • FAX 516.682.3523 • www.jbl.com © 2004 Harman International Industries, Incorporated JBL is a registered trademark, and BassPro is a trademark,
of Harman International Industries, Incorporated. Part No. BASSPROIIOM3/04
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