---
product_id: 1155289
title: "JBL GTO939 GTO Series 6x9\" 300W 3 Way Black Car Coaxial Audio Speakers Stereo"
brand: "jbl"
price: "10965577₫"
currency: VND
in_stock: true
reviews_count: 13
category: "Jbl"
url: https://www.desertcart.vn/products/1155289-jbl-gto939-gto-series-6x9-300w-3-way-black-car
store_origin: VN
region: Vietnam
---

# 3-way coaxial drivers 300W peak power Fits standard 6x9 car mounts JBL GTO939 GTO Series 6x9" 300W 3 Way Black Car Coaxial Audio Speakers Stereo

**Brand:** jbl
**Price:** 10965577₫
**Availability:** ✅ In Stock

## Summary

> 🎶 Turn your car into a concert hall—don’t just drive, vibe!

## Quick Answers

- **What is this?** JBL GTO939 GTO Series 6x9" 300W 3 Way Black Car Coaxial Audio Speakers Stereo by jbl
- **How much does it cost?** 10965577₫ with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/1155289-jbl-gto939-gto-series-6x9-300w-3-way-black-car)

## 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

- • **Built to Endure:** Survives extreme temps (-35°C to 90°C), humidity, UV exposure, and vibration for long-lasting, reliable sound.
- • **Plug & Play Upgrade:** Designed for effortless installation into factory 6x9 mounts—no special tools or modifications needed.
- • **Optimized Bass Boost:** Plus One woofer cone technology offers up to 30% more cone surface for deeper, more efficient bass without a subwoofer.
- • **Power That Moves You:** Experience booming 300W peak power for crystal-clear highs and deep, punchy bass that transforms your drive.
- • **Audiophile-Grade Clarity:** Adjustable Mylar-titanium tweeter and super tweeter deliver pristine highs and rich midrange vocals with zero distortion.

## Overview

The JBL GTO939 is a premium 6x9-inch 3-way coaxial car speaker pair delivering 300W peak power with advanced Mylar-titanium tweeters and Plus One woofer technology. Engineered for audiophile-quality sound, it offers adjustable tweeters, robust bass, and seamless integration with factory mounts. Tested rigorously for durability under extreme conditions, these speakers provide a powerful, distortion-free audio upgrade that’s easy to install and built to last.

## Description

Product Description 2) New JBL GTO938 6x9" 300W 3 Way Car Coaxial Audio Speakers Stereo GTO PAIR desertcart.com Why JBL Sound?For more than 60 years, JBL products have been bringing home the impact and excitement of the world's best recording studios, movie theaters and concert venues. Now, JBL engineers are creating these world-class listening experiences in the car. Thanks to advanced technology developed in the professional arena, JBL mobile products simply sound better than the competition. High output, superb bass response, long life and smooth response are all things you can expect from any speaker that wears the JBL badge. So join enthusiasts who know audio, and don't settle for anything but JBL in your vehicle. Bring the sound of the show on the road.Listen LoudThe last thing you want to worry about is the quality of your speakers. We understand. All new JBL mobile products have to go through nearly 500 hours of environmental testing. We put them under temperatures fluctuating between -35° C and +90° C with up to 90 percent air humidity for more than 200 hours. We expose speakers to UV light for more than 150 hours to simulate a mounting location on a car's rear deck. We even shake things up, as all of our new mobile audio products have to pass extensive vibration testing before we release them for production. We've made unparalleled efforts to ensure the best possible quality so that you can listen long and loud when you crank up a JBL speaker.Edge-Driven, Mylar-Titanium Super TweeterThe JBL GTO939 uses a 1/2-inch (12-millimeter) Mylar-titanium (My-Ti) super tweeter with a large voice coil--much like a voice coil found in high-end home audio speakers. The benefit of the Mylar and titanium blend in making a tweeter is that it is lightweight and has remarkable strength. At the same time, its large voice coil increases power handling and reduces distortion at high output levels. This tweeter design also helps create more seamless integration with the woofer. The GTO939 's tweeter is even adjustable, so you can modify it to optimize the sound. The result? Crystal-clear, extended high frequencies for true, high-end, audiophile-quality performance.Edge-Driven, Mylar-Titanium TweeterFor extra smooth and detailed sound, the JBL GTO939 speakers use a one-inch (25-millimeter), Mylar-titanium (My-Ti). The addition of this dedicated driver allows the GTO938s to deliver rich sound through the midrange frequencies where most of the vocals in music can be found. This extra detail in the midrange, paired with the super tweeter and woofer, means that the GTO938s deliver true, audiophile-quality performance worthy of even the best home speaker.Built-in Crossover NetworksTypical entry level mobile loudspeakers use low performance bass blockers to keep bass from going to the tweeter. Well, the JBL GTO939 is not your typical entry-level loudspeaker. By using a built-in crossover network with advanced high and low pass filters, the GTO939 creates a smooth transition between the woofer and tweeter. The result? Midrange vocals that sound so natural and lifelike you think you the artist were right in the car with you.Bass that BoomsPlus One ConeThe JBL GTO939 uses a 6 X 9 woofer with the patent-pending JBL Plus One cone technology. Plus One technology gives the GTO939 more cone surface than competing models of the same size--up to 30 percent more in many cases. With a larger cone area, the GTO939 speakers provide higher efficiency and better bass response. Add a low-Q woofer design for higher bass output from the typical mounting location and 300-watt peak power handling, and the GTO939 will really get your car booming.Powerful PerformanceTrue 4-Ohm TopologyLow-impedance speaker voice coils extract more power from your amp for more powerful performance than high-impedance coils do. JBL GTO939 speakers use a lower-impedance voice coil than a typical 4-ohm speaker to extract the most power possible from all amplifiers engineered to drive loads of 4 ohms or less. And the GTO939 is compatible with both aftermarket head units and factory-installed systems. Since many factory-installed systems incorporate 2-ohm speakers and include amplifiers designed to drive 2-ohm loads, replacing those reduced-impedance speakers with a typical 4-ohm model will reduce the power output from the amplifier. For the most powerful performance, the GTO939 makes the best use of any amplifier by providing an optimum 2-ohm load.An Easy InstallNo special tools neededDoing it yourself? JBL makes installing the GTO939 speakers a breeze. Designed as replacements for factory-installed OEM speakers, they easily install into nearly any factory-built 6 X 9 location without any special tools or additional modifications. If you are upgrading an older set of aftermarket speakers, the GTO938's easy installation makes replacement simple as well. You'll be listening to your new JBL speakers in no time at all.

Review: HIGHLY RECOMMENDED - The JBL GTO939 GTO Series 6×9” 300W 3‑Way Car Speakers are an amazing upgrade for any car audio system. The sound is powerful and clear with deep bass and crisp highs, making music sound much more lively than stock speakers. Installation was straightforward, and they handle high volume without distortion. Great quality and performance—definitely worth it! 🔊🚗
Review: Absolutely insane sound! - In short this is the best speaker I’ve ever heard. The bass is very similar to a subwoofer yet the vocals are not distorted. I was wanting a speaker that had good bass without buying a subwoofer since I drive a small car and a subwoofer would take up too much space. This delivered on the bass and then some. They fit perfectly into the stock spot in the back window. If you want good bass without a subwoofer this is it, I personally think this is probably as much bass as one can get without buying a subwoofer. I think the bass is more than enough unless you like extreme bass. While these are more expensive they are well worth it, recommended for sure.

## Features

- 6 x 9-inch three-way loudspeaker pair.
- Plus One woofer cone with rubber surround
- Adjustable mylar-titanium tweeter and supertweeter with level control
- 300 Watts peak power handling; 2 ohm impedance
- Three-inch mounting depth

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B003KN2TGM |
| Additional Features | Bass Boost |
| Antenna Location | car |
| Audio Driver Size | 9 Inches |
| Audio Driver Type | Dynamic Driver |
| Audio Output Mode | Stereo |
| Best Sellers Rank | #14,068 in Electronics ( See Top 100 in Electronics ) #95 in Car Coaxial Speakers |
| Brand | JBL |
| Built-In Media | 1 x Subwoofer |
| Color | black |
| Compatible Devices | Car |
| Compatible with Vehicle Type | Car |
| Connectivity Protocol | Coaxial |
| Connectivity Technology | wired |
| Control Method | Touch |
| Controller Type | Corded Electric |
| Customer Package Type | Standard Packaging |
| Customer Reviews | 4.6 out of 5 stars 3,030 Reviews |
| Enclosure Material | Mylar/Titanium Composite |
| Frequency Response | 21000 Hz |
| Global Trade Identification Number | 00050036930352, 00500369303526 |
| Input Voltage | 2.83 Volts |
| Is Waterproof | FALSE |
| Item Dimensions D x W x H | 10"D x 9"W x 10"H |
| Item Weight | 4.4 Pounds |
| MP3 player | No |
| Manufacturer | Harman Kardon |
| Model Name | GTO939 |
| Model Number | GTO939 |
| Mounting Type | Car Mount,Coaxial |
| Number Of Circuits | 3 |
| Number of Audio Channels | 3.0 |
| Number of Batteries | 1 12V batteries required. |
| Number of Items | 2 |
| Power Source | Corded Electric |
| Series Number | 2 |
| Speaker Maximum Output Power | 300 Watts |
| Speaker Size | 9 Inches |
| Speaker Type | Coaxial,Woofer |
| Specific Uses For Product | Car audio system |
| Subwoofer Connectivity Technology | Wired |
| UPC | 801549010150 500369303526 050036930352 |
| Unit Count | 2.0 Count |
| Warranty Description | 1yr |
| Warranty Type | Limited |
| Wireless Technology | Bluetooth |
| Woofer Diameter | 6 Inches |

## Product Details

- **Audio Output Mode:** Stereo
- **Brand:** JBL
- **Connectivity Technology:** wired
- **Frequency Response:** 21000 Hz
- **Speaker Maximum Output Power:** 300 Watts

## Images

![JBL GTO939 GTO Series 6x9" 300W 3 Way Black Car Coaxial Audio Speakers Stereo - Image 1](https://m.media-amazon.com/images/I/710rymuDUXL.jpg)
![JBL GTO939 GTO Series 6x9" 300W 3 Way Black Car Coaxial Audio Speakers Stereo - Image 2](https://m.media-amazon.com/images/I/71Lm+2ABzHL.jpg)
![JBL GTO939 GTO Series 6x9" 300W 3 Way Black Car Coaxial Audio Speakers Stereo - Image 3](https://m.media-amazon.com/images/I/81ws-9GFDPL.jpg)
![JBL GTO939 GTO Series 6x9" 300W 3 Way Black Car Coaxial Audio Speakers Stereo - Image 4](https://m.media-amazon.com/images/I/71kKHzoPt8L.jpg)
![JBL GTO939 GTO Series 6x9" 300W 3 Way Black Car Coaxial Audio Speakers Stereo - Image 5](https://m.media-amazon.com/images/I/61EovpGLAwL.jpg)

## Available Options

This product comes in different **Customer Package Type** options.

## Questions & Answers

**Q: Does anyone who owns these know what the frequency response is? It seems they forgot to put it in the product description. Thanks!**
A: Jayce gave you the frequency swipe. The fs is on the speakers is 58.4. I have them with 45WRMS on the back deck of my car, and they do fill in the bass wonderfully. Not sure how they'll perform without an amp.The treble attenuator is very handy as well, it handles highs terribly well!These are at level with some kenwood excelon I had some years back... if not better (due to treble response)If you buy them, you will not be disappointed!

**Q: what is the RMS wattage output?**
A: There is no output. These are speakers, not an amp. Per JBL specs, they'll handle100w continuous, 300w peak.

**Q: Is this a pair of speakers or a single speaker?**
A: Its a pair of speakers. 2 pieces.

**Q: What's that little button in the middle of the speaker and does it mean anything?**
A: It is to adjust the sound of the tweeter but i cant tell any diffrence .

## Customer Reviews

### ⭐⭐⭐⭐⭐ HIGHLY RECOMMENDED
*by D***N on April 2, 2026*

The JBL GTO939 GTO Series 6×9” 300W 3‑Way Car Speakers are an amazing upgrade for any car audio system. The sound is powerful and clear with deep bass and crisp highs, making music sound much more lively than stock speakers. Installation was straightforward, and they handle high volume without distortion. Great quality and performance—definitely worth it! 🔊🚗

### ⭐⭐⭐⭐⭐ Absolutely insane sound!
*by T***7 on January 8, 2026*

In short this is the best speaker I’ve ever heard. The bass is very similar to a subwoofer yet the vocals are not distorted. I was wanting a speaker that had good bass without buying a subwoofer since I drive a small car and a subwoofer would take up too much space. This delivered on the bass and then some. They fit perfectly into the stock spot in the back window. If you want good bass without a subwoofer this is it, I personally think this is probably as much bass as one can get without buying a subwoofer. I think the bass is more than enough unless you like extreme bass. While these are more expensive they are well worth it, recommended for sure.

### ⭐⭐⭐⭐⭐ JBL!! Is best 👌
*by N***K on April 1, 2026*

Amazing its JBL. Size fit perfect. The sound is loud and clear. Bass is clear! Easy to install. Fit my 2018 tacoma with speaker adapters no issuse.

## Frequently Bought Together

- JBL GTO939 GTO Series 6x9" 300W 3 Way Black Car Coaxial Audio Speakers Stereo
- JBL GTO629 6.5" Grand Touring Series Car Audio Speakers - 2-Way, 360 Watts MAX Power, Factory-Sized Replacement Includes Iron Crush Cleaning Cloth.
- JBL GTO609C 270 Watts 6-1/2" Premium Car Audio Component Stereo Speaker System with Patented Plus One Woofer-Cone Technology

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.vn/products/1155289-jbl-gto939-gto-series-6x9-300w-3-way-black-car](https://www.desertcart.vn/products/1155289-jbl-gto939-gto-series-6x9-300w-3-way-black-car)

---

*Product available on Desertcart Vietnam*
*Store origin: VN*
*Last updated: 2026-05-15*