JBL Subwoofer User Manual

JBL Subwoofer User Manual

Basspro 8 Subwoofer – Quick Start Guide

THANK YOU for choosing the JBL Basspro 8 powered subwoofer. To ensure maximum performance, we strongly recommend that you have it installed by a qualified professional – while these instructions offer general installation guidance, they do not show specific installation methods for your particular vehicle. If you do not have the necessary tools or hands-on experience, do not attempt the installation yourself; instead, ask your authorized JBL car-audio dealer about professional installation options.

INSTALLATION

IMPORTANT: Disconnect the vehicle’s negative (–) battery terminal before beginning the installation.

• Always wear protective eyewear when using tools.
• When making electrical connections, make sure they are secure and properly insulated.
•  If you must replace the fuse, be sure to use the same type of fuse and current rating as that of the original.

CHOOSING A MOUNTING LOCATION

Choose a location that doesn’t prevent you from loading or unloading cargo, interfere with fold-down seats, or keep you from being able to open or close the
trunk lid, or interfere with the safe operation of the vehicle.

Basspro 8 WIRING

You’ll make all signal and connections, and adjust all settings at the panel on the back of the Basspro 8.

The package includes a wiring harness that features all necessary wires for power, ground, and signal, and plugs into the “INPUT” connector on the back panel of
the Basspro 8. It also includes a pair of RCA adapters for use with speaker- level inputs.

FOR POWER

Connect the end of the red 16-gauge power wire to your vehicle’s + (positive) battery terminal. Note: If an extension cable is necessary because of your mounting location, we recommend that you connect the extension to the power wire using solder. You must also install a fuse holder with a 10A fuse in-line and within 18″ of the battery.

FOR GROUND

Connect the 16-gauge black ground wire to a solid, metal point on the vehicle’s chassis using a ring terminal. Use sandpaper to clear the paint from the metal surface at the chassis location. Use a star-type lock washer to secure the wire.

REMOTE IN

If you’re using line-level inputs to provide signal to the Basspro 8 (see below), uncouple the bullet connector on the blue/white wire, and connect the longer wire marked with “REMOTE IN” to the remote output wire on your source unit.

If you’re using speaker-level inputs to provide signal to the Basspro 8 (see below), you must leave the bullet connector coupled so that the blue/white wire makes a loop.

When you’ve made all the necessary power and signal connections to the Basspro 8 wiring harness, plug the harness into the input marked “INPUT”.

GETTING SIGNAL TO THE Basspro 8

If your head unit has single or dual subwoofer outputs, use RCA patch cables to connect them to the line-level inputs of the Basspro 8 harness. For single subwoofer outputs, use an RCA Y-adapter cable to connect to the Basspro 8 line-level inputs. If your head unit offers stereo subwoofer outputs, connect to the line-level inputs of the Basspro 8 harness using stereo RCA patch cables.

SPEAKER-LEVEL SIGNAL INPUTS

If your head unit only has speaker-level outputs, use the included speaker- level input adapters. Splice the gray and gray/black wires into your vehicle’s front left speaker wires, and the green and green/black wires into your vehicle’s front right speakers wires (using solder is recommended). Then plug each adapter in to the RCA inputs of the Basspro 8 harness.

BASS LEVEL REMOTE

If you’re using a compatible JBL RBC remote bass level controller (sold separately at https://www.jbl.com), plug its connector directly in the REMOTE input on the back panel.

POWER AND PROTECT LEDs

The back panel includes two LED indicators. When POWER is illuminated, the Basspro 8 is turned on. When PROTECT is illuminated, the Basspro 8 has entered protect mode due to overheating or over/under-voltage conditions.

SETTING THE GAIN, CROSSOVER, PHASE, AND BASS BOOST

Adjusting the gain lets you match the input sensitivity of Basspro 8 with the output of your receiver, and match the relative volume to the rest of the speakers in your vehicle.

1. Start with gain control set to minimum, and the crossover control and bass control rotated midway.

2. Choose music with substantial bass content and turn the volume control on your receiver to ¾ of its total output.

3. Adjust the gain control clockwise, listening carefully to the bass output. If you hear distortion, turn the gain control counterclockwise to decrease the gain.
   

4. Switch the phase back and forth between 0 and 180 degrees to determine which setting provides the most clean bass output.
   

5. Adjust the crossover control (between 60Hz and 200Hz) until the Basspro 8 plays only low-frequency information – you should not hear elements such as vocals
   coming from the woofer.
   

6. Adjust the Bass EQ control clockwise or counterclockwise between 0 and 9 dB to enhance the bass output to suit your taste.
   

SPECIFICATIONS

Amplifier Power :                                      100Wrms; 200W peak
Frequency Response :                                30Hz –200Hz
Fuse :                                                         10A
Maximum Current Draw :                         9.5A
Quiescent Current Draw :                         <0.5A 50mV – 16V Universal Interface
Crossover Frequency :                               60Hz – 200Hz
Crossover Slope :                                      12dB/octave
Bass Boost :                                              up to +9dB @ 60Hz Dimensions (W x H x D1 x D2)

Dimensions (W x H x D1 x D2) :              9-7-8″ x 11-1/4″ x 10-3/8″ x 8″ (250mm x 285mm x 263mm x 203mm)

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References

• Official JBL Store - Speakers, Headphones, and More!
• Official JBL Store - Speakers, Headphones, and More!

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