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EN

Note:

 When connecting a factory or aftermarket stereo to the 

BassPro Nano’s speaker-level inputs, set the 

 

button to 

.

SETTING GAIN, ADJUSTING PHASE, LOW-
PASS FILTER, AND BASS BOOST

1.

 

Start with 

GAIN

 control set to minimum, 

and the crossover 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 to 

determine which setting provides the most 
clean bass output.

5.

 

Adjust the 

LOW-PASS

 

FILTER

 control 

until the BassPro Nano plays only low-
frequency information – you should not 
hear elements such as vocals coming from 
the woofer.

6.

 

Adjust the 

BASS-BOOST

 control 

clockwise or counterclockwise to suit your 
taste.

CONNECTING THE REMOTE BASS 
CONTROL MODULE

SPECIFICATIONS

•  Driver Complement: 6” x 8” (152mm x 203mm) woofer
•  Amplifier Power Output: 100WRMS, 200W Max
•  Frequency Response: 30 Hz – 150 Hz
•  Fuse: 15A
•  Maximum Current Draw: 13A
•  Quiescent Current Draw: <600 mA
•  Input Sensitivity: 0.1 V – 4.0 V low-level input; 0.25 V – 10V 

high-level input

•  Crossover Frequency: 50 Hz – 150 Hz
•  Crossover Slope: 12 dB/octave
•  Bass Boost: 0 dB to +12 dB @ 50Hz
•  Dimensions (L x W x H): 10-1/4” x 7-11/16” x 2-15/16” 

(260mm x 195mm x 74.6mm)

•  Weight: 7.78lbs. (3.53kg)

TROUBLESHOOTING

No audio and 

POWER

 indicator is off

•  No voltage at 

BATT+

 and/or 

 terminals, or bad or no 

ground connection. Check voltages at amplifier terminals with 

VOM

.

No audio and 

 indicator flashes every 4 seconds

•  DC voltage on amplifier output. Amplifier may need service; see 

enclosed warranty card for service information.

No audio and 

 and 

 indicators flash

•  Voltage less than 9V on 

BATT+

 connection. Check vehicle 

charging system.

No audio and 

 indicator is on

•  Amplifier is overheated. Make sure amplifier cooling is not 

blocked at mounting location. Or, there may be voltage greater 
than 16V (or less than 8.5V) on 

 connection. Check 

vehicle charging system.

Amplifier fuse keeps blowing

•  The wiring is connected incorrectly or there is a short circuit. 

Check wiring connections.

Distorted audio

• 

 is not set properly. Check setting. Check wires for shorts 

or grounds. Amplifier or source unit may be defective.

Music lacks dynamics or “punch.”

•  If using speaker-level inputs, check connections for proper 

polarity. Switch 

 back and forth between 0° and 180° 

and leave on setting with best sound.

Engine noise—whining or clicking—in system when the 
engine is on

•  Amplifier is picking up alternator noise. First, check ground 

connection on the amplifier – a loose or improper ground is 
one of the main causes for noise. Turn down 

. Move RCA 

audio cables away from power wires. Installing an alternator 
noise filter on power line between battery and alternator might 
also be necessary.

HARMAN International  Industries, 
Incorporated  8500 Balboa Boulevard, 
 Northridge, CA 91329 USA
www.jbl.com

© 2019 HARMAN International Industries, Incorporated. All rights reserved.
JBL is a trademark of HARMAN International Industries, Incorporated, 
registered in the United States and/or other countries. Features, specifications 
and appearance are subject to change without notice.

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