Contact us
Close contact box
Connect ID #
535 116 105 3
Connect ID #
535 116 105 3
All finished with your chat session?

We’ll email you a transcript of this conversation for your records.

All of our representatives are
currently chatting with other customers.

Please enter your name.  
Please enter a valid email address. Why is this required?
Please enter your US phone number.  

For Tech Support, call 1-888-292-2575

Thank you, !
Our conversation will be emailed to

Your Advisor,

More about me
Please enter a question  
Don't wait on hold. We'll call you back when it's your turn to talk with the next available .
Please enter your name  
Please enter your phone number  

Please enter a message  

Calls may be recorded for training and quality control purposes.

We are located in Virginia USA.

JBL BassPro 12

Ported powered subwoofer with 12" sub and 150-watt amp

Item # 109GTBASSP

JBL's BassPro12 powered subwoofer adds a blast of bass to your vehicle so you can really feel your music's impact...

JBL's BassPro12 powered subwoofer adds a blast of bass to your vehicle so you can really feel your music's impact...

California customers:
Please click here for your Proposition 65 warning.

Low stock

Other options

About the JBL BassPro 12

Add a blast of bass

JBL's BassPro12 powered subwoofer adds a blast of bass to your vehicle so you can really feel your music's impact as you drive. JBL designed this bass system to shine in the car environment, tuning it for tight, responsive low notes.

Add a blast of bass

JBL's BassPro12 powered subwoofer adds a blast of bass to your vehicle so you can really feel your music's impact as you drive. JBL designed this bass system to shine in the car environment, tuning it for tight, responsive low notes.

Powerful bass from a 12" sub

The BassPro12 enclosure features a JBL 12" sub that really brings the thunder with its polypropylene cone and hi-roll rubber surround. The built-in 150-watt amplifier is matched up perfectly to the sub, so it won't wimp out when it's time to rock. Use an amp wiring kit to power up the BassPro12, and you've turned your car into a concert hall.

Unique port for compact design

The enclosure features JBL's unique Slipstream port, which offers shorter length with a wide-mouth opening that reduces port noise and distortion. This means that JBL can build a more compact enclosure, and still get great performance from this hard-hitting sub. The medium-density fiberboard construction offers strength and durability under extreme conditions, while the carpet covering protects your investment.


Product highlights:

  • powered subwoofer enclosure
  • 12" sub with polypropylene cone
  • built-in 150 watt RMS amplifier (450 watts peak)
  • remote bass-level control included
  • speaker- and line-level inputs
  • 8-gauge amp wiring kit required (sold separately)
  • variable low-pass crossover (40-200 Hz, 12 dB/octave)
  • variable bass boost (0-12 dB at 45 Hz)
  • phase switch (0°, 180°)
  • frequency response: 35-120 Hz
  • fuse rating: 25A
  • dimensions: 22-3/8"W x 14-5/8"H x 11-7/8"D1 x 9-1/8"D2
  • warranty: 1 year
  • Our 60-day money-back guarantee

What's in the box:

  • Powered 12" subwoofer enclosure
  • Two 25A fuses (one installed in amp)
  • Remote level control
  • 16.5' Remote level control cable (RJ-14 connectors on both ends)
  • Two 8" speaker-level input harnesses
  • 1" Patch of hook-and-loop fastener w/ 3M adhesive backing
  • Owner's manual

Customer reviews

Loading reviews...

JBL BassPro 12 reviews

Average review:

9 reviews

Thanks for submitting your review

Filter by rating

Customer photos

Sort reviews

Sort by:
Items per page:
View page:

Verified customer (What's this?)
Verified employee purchase (What's this?)



Crutchfield response

<< >>

More details on the JBL BassPro 12

Pat M.

Features & specs

Enclosure Type Ported
Finish Material Carpet
Grille metal
Connector Type RCA, speaker-level
Bi-amp Inputs No
Woofer Size (inches) 12
Woofer Material Poly
Passive Radiator None
Width 22-3/8"
Height 14-5/8"
Depth 11-7/8"
Second Depth 9-1/8"
Parts Warranty 1 Year
Labor Warranty 1 Year
Frequency Response 35-120
Amplifier Power (RMS) 150 watts
Maximum Wattage 450 watts
Sensitivity ---
Impedance ---
Second Voice Coil Impedance ---
Crossover Point 70-120Hz
The JBL BassPro 12 replaces these items:

Product Research


Amplifier: The power output from the built-in amplifier is 150 watts RMS (450 watts max). The amplifier is counter sunk into the back panel of the enclosure (the heat sink fins protrude approximately 3/8").

Signal Input: The amplifier has both speaker level (harness) and line level (RCA) inputs. The input sensitivity range is 50mV-4V for the line inputs and 400mV-16V for the speaker inputs.

Crossover: The amplifier's low pass crossover point is continuously variable from 40 to 200 Hz; the crossover slope is 12 dB/octave.

Bass Boost: The bass boost circuit provides a variable (0-12 dB) signal boost centered at 45 Hz.

Status LEDs: There are two status indicator LEDs on the amplifier. A green LED lights to indicate the amplifier is turned on and operating normally. A red LED lights to indicate the amplifier's protection circuitry has been activated. The protection circuit activates and the amplifier shuts down when the input voltage (power) is too high or too low, when the amp overheats, and when there is a short between the amp and subwoofer.

Enclosure Dimensions:

  • Width: 22.375"
  • Height: 14.625"
  • Depth (bottom): 11.875"
  • Depth (top): 9.125"

Remote Level Control: The included remote level control lets you adjust the output level of the amplifier from the front of the vehicle. It can be mounted under the dash, in the glove compartment, etc, using the supplied 3M hook-and-loop fastener, and connected with the included 16.5' connection cable terminated in RJ-14 connectors. The remote level control has the following dimensions:

  • Width: 1.125"
  • Height: 0.875"
  • Depth: 2.125" (including the knob and cable)


  • Auto Turn-On: Two position switch; on/off; when using the speaker level inputs the amplifier will turn on automatically when it senses an input signal.
  • Phase: Two position switch; 0° or 180°; the sub's phase can be easily inverted.
  • Crossover Frequency: Rotary knob; set the low pass crossover point; continuously variable from 40 Hz to 200 Hz.
  • Bass Boost: Rotary knob; continuously variable from 0 to +12 dB.
  • Gain: Rotary knob; continuously variable from 50mV-4V (line level) or 400mV-16V (speaker level).


  • Remote Bass: RJ-14 jack for use with the included remote bass level control
  • Fuse: A single 25 amp ATO style fuse protects the amplifier (spare fuse included)
  • Line Input: Stereo RCA jacks (female)
  • Speaker Input: 4-pin plug for use with the included high-level input harness.
  • Power Input: Screw terminals for power, ground, and remote turn-on; each will accept spade terminals up to 0.33" wide (approximately).

Loading accessories...

Customer Q&A

4 questions already asked

I've never installed a subwoofer in my car before. I see that I need to purchase an additional 8 gauge wiring kit. Is there anything else that you'd recommend I purchase along with this whether it be for ease of installation of better sound quality?
[ Eric  Mar 11, 2021 ]
2 answers
What kind of vehicle is this going in. I installed mine in a 2019 keep wrangler and the kit was all I needed
[ BRYAN  Mar 12, 2021 ]
Make sure the 8 au comes with a waterproof fuse holder, which needs to be within 18" of your car battery. You will need to run the supplied wire for the remote gain control for the sub. I would run a set of RCA cables and a remote turn on lead close to your head unit just in case, especially if you already have an aftermarket head unit, or plan on adding later.
[ CHRIS  Mar 11, 2021 ]
How do I hook this amp and speaker combo up in my 2019 Jeep JL that has no rca hook ups?
[ Bryan  Apr 13, 2020 ]
1 answer
If you purchased the product from Crutchfield, feel free to contact our Tech Support team. They can walk you through the settings on the product and see if there may be a fix. Our toll-free Tech Support number is printed on your invoice, and is also available under the "My Orders" tab in the "My Account" section of our website. If you did not purchase the unit from Crutchfield, then you may want to contact the manufacturer.
[ Krissy  Apr 23, 2020 ]  Staff

Loading articles...