---
product_id: 1177244
title: "JBL GT-BassPro12 12-Inch (300mm) Car Audio Powered Subwoofer System, black"
brand: "jbl"
price: "$1165.61"
currency: USD
in_stock: true
reviews_count: 8
url: https://www.desertcart.us/products/1177244-jbl-gt-basspro12-12-inch-300mm-car-audio-powered-subwoofer
store_origin: US
region: United States of America
---

# 12-inch die-cast woofer Auto signal-sensing power Remote bass & level control JBL GT-BassPro12 12-Inch (300mm) Car Audio Powered Subwoofer System, black

**Brand:** jbl
**Price:** $1165.61
**Availability:** ✅ In Stock

## Summary

> 🎵 Feel the bass, not the boom — JBL GT-BassPro12 powers your drive with precision!

## Quick Answers

- **What is this?** JBL GT-BassPro12 12-Inch (300mm) Car Audio Powered Subwoofer System, black by jbl
- **How much does it cost?** $1165.61 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/1177244-jbl-gt-basspro12-12-inch-300mm-car-audio-powered-subwoofer)

## Best For

- jbl enthusiasts

## Why This Product

- Trusted jbl brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Compact powerhouse:** 12-inch subwoofer with 150W RMS amp fits sleekly in your trunk
- • **Effortless control:** Remote and onboard controls for bass boost, phase & crossover
- • **Smart power on/off:** Signal-sensing activation means no wasted energy or manual toggling
- • **Precision-tuned system:** Amplifier, woofer & enclosure engineered for flawless synergy
- • **Deep, distortion-free bass:** Patented Slipstream port eliminates port noise even at max volume

## Overview

The JBL GT-BassPro12 is a 12-inch powered car subwoofer system featuring a die-cast aluminium basket woofer and patented Slipstream port for clean, deep bass without distortion. Its built-in 150W RMS amplifier is perfectly matched to the enclosure and woofer, delivering optimized sound performance. With signal-sensing auto power, remote bass and level controls, and versatile input options, it offers a seamless, high-quality bass upgrade for any car audio setup.

## Description

The JBL GT-BassPro12 powered subwoofer pumps out lush, car-rocking bass through a design so cool you won’t want to hide it in your trunk. The patented Slipstream port design delivers deep bottom end while minimizing turbulence. Turbulence, or port noise at high volume, isn’t just annoying; it’s a signal that the port is no longer working and you’re getting less bass than you paid for. The Slipstream design is carefully optimised for the combination of woofer, amp and enclosure, and no other company has it. And with the included remote control for drive-time adjustments, the only time you’ll need to stop is for gas.

Review: I see you JBL - I previously had a West Coast Customs dual 10 inch sub and amp. Had it since 2014 and recently decided to upgrade the amp with a RockFord Fosgate amp which made the subs sound better than they previously did but something was off and did not sound right to me. Decided to return the Fosgate amp and throw the subs to my local thrift store. I came upon this JBL sub while looking for a new one. I could not believe the price so I did some research on it and liked what I saw so I took a swing and bought it. Arrived in excellent condition since it was double boxed. Comes with a remote to adjust the level from your sitting position but I do not want to use it. I used the previous 4awg cable I already have installed but unfortunately the wire is to thick for the input on the amp so I cut some of the wire off to make it fit. I don't think that is the right thing to do but desperate times call for desperate measures. At first I did a sloppy job at cutting and connecting the power cables to the inputs on the amp but it got the job done. Turned the radio on and the sub turned on as well so that was a good sign. At first impressions it sounded good and was exactly what I was looking for. But I was not satisfied with the was I put the power and ground cable to the amp so I took my time and did it right to make sure no cable strands were sticking out. I lowered the level knob a little below half and set the low pass a little above 80hz. Set the high pass filter on the stereo to 90hz so the speakers play nothing below that and holy smokes!! I hit the sweet spot. The bass is so deep and powerful you can feel it in your soul. It's not thumpy or boomy which is what I wanted. It almost sounds as good as my home theater sub. It reflects perfectly off the speakers which is what you want. It should not be directional to the point that you know the bass is coming for the sub in the back. It should sound that it is coming from the speakers. Never have I bothered with JBL products but now they have my attention. Definitely worth the money if you are looking for an all in one package. Nice and compact size and definitely excellent sound quality if you take your time to adjust it.
Review: Great All In One Subwoofer and Amp Combo - The JBL GT-BassPro12 is a very nice all in one subwoofer. The subwoofer feels well made. Thick plastic, soft outer ring all lend to a durable feel. The metal bars over the sub look great, but are not there just for looks. These bars are strong and will protect the sub from items coming in contact with the sub. I find this particularly helpful keeping groceries in the trunk from destroying or denting my cone. The carpet is smooth and well fitted with a short nap. The amplifier is 150 watts RMS and built into the rear of the enclosure. It looks small in the photo, but remember that's a 12" sub. It is a large and heavy box. The controls are all on the rear, but a really nice touch is the remote gain. By running CAT5 cable to the front of your vehicle, you get remote control of the sub's level gain. So much more convenient than popping the trunk pulling sub forward, tweaking, then pushing back in position. You can use both line level inputs or speaker level inputs. With speaker tie in, there is an automatic on/off feature that sense when the sub should power on. This avoids the remote power on wire. I used the traditional RCA cables to bring signal to the amp. Being all in one mad for a super fast install. I highly recommend this for anyone looking to add bottom end to their audio listening experience. It will not blow the windows out of the car next to you. I was surprised by the volume and quality from only 150 watts. Great sub.

## Features

- 12-Inch (305mm) woofer with die-cast aluminium basket for solid sounds under all conditions
- Slipstream port eliminates port noise and provides distortion-free bass at high output levels
- System optimisation: amplifier is precisely matched with woofer, enclosure and Slipstream port to ensure best performance and value
- Signal-sensing turn-on automatically turns the subwoofer on and off when the head unit sends an audio signal; can be defeated for use with aftermarket radios that include a remote turn-on lead
- Input level, low-pass, bass-boost and phase controls make it easy for any user to get the desired sound

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B007GYU30K |
| Audio Driver Size | 12 Inches |
| Audio Driver Type | Dynamic Driver |
| Batteries | 1 12V batteries required. |
| Best Sellers Rank | #296,068 in Electronics ( See Top 100 in Electronics ) #1,630 in Car Component Subwoofers |
| Chassis Size | Ported |
| Color | black |
| Control Method | Remote |
| Customer Package Type | Standard Packaging |
| Customer Reviews | 4.5 4.5 out of 5 stars (1,215) |
| Date First Available | March 4, 2012 |
| Global Trade Identification Number | 00050036313216 |
| Included Components | GT-BASSPRO12-UOB-K |
| Is Discontinued By Manufacturer | Yes |
| Is Waterproof | FALSE |
| Item Weight | 34.2 pounds |
| Item model number | JBL GT-BassPro12 |
| Manufacturer | JBL |
| Model Name | GT-BassPro12 |
| Number of Batteries | 1 12V batteries required. |
| Number of Items | 1 |
| Power Source | Corded Electric |
| Product Dimensions | 13"D x 24.13"W x 11.25"H |
| Recommended Uses For Product | car |
| Shape | Rectangular Prism |
| Speaker Size | 12 Inches |
| Speaker Type | Subwoofer |
| Special Feature | Built In Microphone |
| Style | 12" Powered |
| Subwoofer Connectivity Technology | Wired |
| Subwoofer Diameter | 12 Inches |
| Surround Sound Channel Configuration | 1.0 |
| UPC | 050036313216 500363132160 |
| Unit Count | 1.0 Count |
| Warranty | 1 year parts and labor |
| Warranty Type | Limited Warranty |
| Weight | 37 Pounds |
| Wireless Communication Technology | Bluetooth |
| Wireless Remote | No |
| Woofer Diameter | 12 Inches |

## Product Details

- **Audio Output Mode:** Stereo
- **Brand:** JBL
- **Connectivity Technology:** Coaxial
- **Mounting Type:** Trunk Mount,Car Mount
- **Speaker Maximum Output Power:** 150 Watts

## Images

![JBL GT-BassPro12 12-Inch (300mm) Car Audio Powered Subwoofer System, black - Image 1](https://m.media-amazon.com/images/I/61tnvdjQZaL.jpg)
![JBL GT-BassPro12 12-Inch (300mm) Car Audio Powered Subwoofer System, black - Image 2](https://m.media-amazon.com/images/I/61nXYukrImL.jpg)
![JBL GT-BassPro12 12-Inch (300mm) Car Audio Powered Subwoofer System, black - Image 3](https://m.media-amazon.com/images/I/71UB32JooHL.jpg)
![JBL GT-BassPro12 12-Inch (300mm) Car Audio Powered Subwoofer System, black - Image 4](https://m.media-amazon.com/images/I/81IEwJ9zMJL.jpg)

## Questions & Answers

**Q: Will a 800w BOSS audio amp be enough to power this**
A: For the 10" (without built in amp) your boss amp (real RMS power 300watts) will be fine.
Good match for a truly budget system

**Q: How do I know what size fuse to buy for running the remote line to the fuse box? (sticking with OEM stereo, using adapt-a-circuit)**
A: The remote wire usually doesn't require an inline fuse. Just make sure you have a fuse within 18" from your car's battery (on the power wire of course).

**Q: does the bass remote and wire come in this package**
A: What's in the BOX    Amplified enclosure loaded with one 12" JBL subwoofer    Two 25 amp fuses (1 installed/1 extra)    12" Speaker input harness    Wired remote level control    16.5' Remote level control cable (RJ-25 plug on both ends)    Two 3/8" Self-tapping screws    Owner's manual (English/ German/ Spanish/ French/10 Other languages)

**Q: Does this need a seperate bass amp?**
A: No the amp is integrated into this particular sub in a pretty clean package, and the are a matched set. You really only need a few cables.

## Customer Reviews

### ⭐⭐⭐⭐⭐ I see you JBL
*by T***R on June 9, 2020*

I previously had a West Coast Customs dual 10 inch sub and amp. Had it since 2014 and recently decided to upgrade the amp with a RockFord Fosgate amp which made the subs sound better than they previously did but something was off and did not sound right to me. Decided to return the Fosgate amp and throw the subs to my local thrift store. I came upon this JBL sub while looking for a new one. I could not believe the price so I did some research on it and liked what I saw so I took a swing and bought it. Arrived in excellent condition since it was double boxed. Comes with a remote to adjust the level from your sitting position but I do not want to use it. I used the previous 4awg cable I already have installed but unfortunately the wire is to thick for the input on the amp so I cut some of the wire off to make it fit. I don't think that is the right thing to do but desperate times call for desperate measures. At first I did a sloppy job at cutting and connecting the power cables to the inputs on the amp but it got the job done. Turned the radio on and the sub turned on as well so that was a good sign. At first impressions it sounded good and was exactly what I was looking for. But I was not satisfied with the was I put the power and ground cable to the amp so I took my time and did it right to make sure no cable strands were sticking out. I lowered the level knob a little below half and set the low pass a little above 80hz. Set the high pass filter on the stereo to 90hz so the speakers play nothing below that and holy smokes!! I hit the sweet spot. The bass is so deep and powerful you can feel it in your soul. It's not thumpy or boomy which is what I wanted. It almost sounds as good as my home theater sub. It reflects perfectly off the speakers which is what you want. It should not be directional to the point that you know the bass is coming for the sub in the back. It should sound that it is coming from the speakers. Never have I bothered with JBL products but now they have my attention. Definitely worth the money if you are looking for an all in one package. Nice and compact size and definitely excellent sound quality if you take your time to adjust it.

### ⭐⭐⭐⭐⭐ Great All In One Subwoofer and Amp Combo
*by B***. on March 8, 2016*

The JBL GT-BassPro12 is a very nice all in one subwoofer. The subwoofer feels well made. Thick plastic, soft outer ring all lend to a durable feel. The metal bars over the sub look great, but are not there just for looks. These bars are strong and will protect the sub from items coming in contact with the sub. I find this particularly helpful keeping groceries in the trunk from destroying or denting my cone. The carpet is smooth and well fitted with a short nap. The amplifier is 150 watts RMS and built into the rear of the enclosure. It looks small in the photo, but remember that's a 12" sub. It is a large and heavy box. The controls are all on the rear, but a really nice touch is the remote gain. By running CAT5 cable to the front of your vehicle, you get remote control of the sub's level gain. So much more convenient than popping the trunk pulling sub forward, tweaking, then pushing back in position. You can use both line level inputs or speaker level inputs. With speaker tie in, there is an automatic on/off feature that sense when the sub should power on. This avoids the remote power on wire. I used the traditional RCA cables to bring signal to the amp. Being all in one mad for a super fast install. I highly recommend this for anyone looking to add bottom end to their audio listening experience. It will not blow the windows out of the car next to you. I was surprised by the volume and quality from only 150 watts. Great sub.

### ⭐⭐⭐⭐⭐ Legitimately one of the best ive installed at this price point.
*by C***E on April 16, 2023*

Purchased this and a Dual brand install kit. The install kit was trash. Cheap CCA wire and weak wire connectors. Its a 6 dollar copper coated aluminum kit disguised as a 30 dollar kit This JBL Harmon (Of Harman Kardon) 12" dual coil sub and 150 watt Harman amplifier is a SbS home run! (SbS - single box solution) just dont get the 29.95 Dual install kit. - total junk- Unboxing reveals a 12" tuned and ported JBL Box with sub and amp built in. Install was in 2014 Taurus Police Interceptor, installed by running RCA inputs to both rear speakers, jumpered the blue (amp on/off wire) directly to positive terminal, turned the auto turn on switch to on, ran a 4 ga power wire from batt to amp, ground strap to rear decklid Boom! Green lite came on and this setup blew us away. Crisp clear 40 to 350hz adjustable bass, line level adjust and bass boost and this setup legitimately banged pretty hard. At its price point it is a winner! Youre not gonna win competitions with it,, but as a one box solution for ANY base model that needs some serious low end boost, look no further! Its quite impressive! Make sure you have a solid direct to battery connection and a solid less than a few feet ground and youll have enough power to run it well. The killer of setups like these is clipping from poor power supply conditions - that crackle when bass hits, contrary to popular belief- isnt too much power, its too little, and that will smoke the voice coils fast. Give it clean power and signal and dont expect windshield expanding bass notes (but good solid trunk rattling bass regardless) and you will be quite happy for the price. This is my 5th install of this model, 2014 Interceptor, 2005 Savana Hi Top van, 2010 Tahoe, 2005 Tahoe and 2007 Escalade. Each and every vehicle sounds spectacular! 5 stars for sure!

## Frequently Bought Together

- JBL GT-BassPro12 12-Inch (300mm) Car Audio Powered Subwoofer System, black
- BOSS Audio Systems KIT2 8 Gauge Complete Car Amplifier Installation Wiring Kit with Power Cables, Ground Cables, Turn-On Wire, Speaker Wire, Terminals
- PAC SNI-35 Variable LOC Line Out Converter 1.2x6.25x5.9

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-03-04*