JBL GTO939 GTO Series 6x9" 300W 3 Way Black Car Coaxial
Audio Speakers Stereo
Price as of 2026-06-05. Check Amazon for the current price.
Quick Decision
Price Intelligence
Currently $179.95 — the 90-day average is $72.70.
All-time low: $56 on Fri Oct 07 (from 142 price checks).
Is This Right For You?
- •Buyers who prioritize quality over price in Car Speakers
- •Those who want a top-rated option — in the top 14% of Car Speakers by rating
- •JBL loyalists — the brand spans 36 products in our database
- •You're on a tight budget — $95 above the category average of $85
- •KICKER CS Series 150 Watt 6 x 9 Inch Car Audio Coaxial offers a better rating (4.7/5) at a similar or lower price ($112)
- •Kenwood KFC-653 6-1/2" 2-Way Concert Series Car Speakers — 58% cheaper at $75 (Score B)
- •KICKER CS Series 150 Watt 6 x 9 Inch Car Audio Coaxial — higher rated at 4.7/5 ($112)
📊 Based on data analysis of 36 products in this category.
Mubboo Score: B
How It Compares
This Product JBL GTO939 GTO Series 6x9" 300W 3 Way Black Car Coaxial | Most Popular Rockford Fosgate P1650 Punch 6.5" 2-Way Coaxial Full Range Speaker | Best Rated KICKER CS Series 150 Watt 6 x 9 Inch Car Audio Coaxial | Best Value Kenwood KFC-653 6-1/2" 2-Way Concert Series Car Speakers | |
|---|---|---|---|---|
| Price | $179.95 | $109.99 | $111.96 | $74.99 |
| Rating | 4.6/5 | 4.6/5 | 4.7/5 | 4.5/5 |
| Reviews | 3,034 | 9,435 | 1,125 | 1,254 |
| Mubboo Score | B | B+ | B | B |
Quick Specs
- Color
- black
- MP3 player
- No
- Unit Count
- 2.0 Count
- Item Weight
- 4.4 Pounds
- Manufacturer
- Harman Kardon
- Model Number
- GTO939
- Power Source
- Corded Electric
- Speaker Size
- 9 Inches
What People Say
Synthesized from 40 reviews · 100% verified purchases.
These budget speakers offer clear highs and good value, but expect limited bass unless you add a subwoofer. Be prepared to buy vehicle-specific adapters or mounting brackets for proper fit.
- Great value for money
- Crisp and clear sound quality
- Easy installation
- Significant improvement over factory speakers
- Surprising bass for budget speakers
- Weak bass response
- Installation may require additional adapters or modifications
- Durability concerns or distortion at high volumes
Expert Picks in Car Speakers
- Sony SS-CS5M2 — Home theater and music
- Bose SoundLink Plus — Best Bluetooth speaker overall
- Soundcore by Anker Boom 2 — Best value Bluetooth speaker
Category recommendations from independent expert publications. Source links in References.
Related Video Reviews
- 📹 The best premium car speakers for 2026 | Crutchfield — CRUTCHFIELD
- 📹 Best 6.5 Inch Car Speakers 2026 - These Are The Only 6 To Consider — Consumer Betterment
- 📹 The best car speakers under $100 in 2026 | Crutchfield — CRUTCHFIELD
Key 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
Source: product listing on Amazon.
About JBL
- 36 products in our database
- Average rating: 4.6/5 across all products
- Price range: $39.95 – $1099.95
- Categories: Bluetooth Speakers, Bookshelf Speakers, car-electronics, Car Speakers, Car Subwoofers, marine-electronics
Other Car Speakers
Featured in Our Reviews
Bottom Line
JBL GTO939 GTO Series 6x9" 300W 3 Way Black Car Coaxial earns Mubboo Score B. At $180 it's above the 90-day average of $73 — waiting for a dip may pay off. Rated 4.6/5 from 3,034+ reviews. Strong buy if: buyers who prioritize quality over price in car speakers, those who want a top-rated option. Skip if: you're on a tight budget — Rockford Fosgate P1650 Punch 6.5" 2-Way Coaxial Full Range Speaker (Score B+, $110) may fit better.
Frequently Asked Questions
Is the JBL GTO939 GTO Series 6x9" 300W 3 Way Black Car Coaxial worth buying in 2026?
It earns a Mubboo Score of B, with a 4.6/5 rating from 3,034 reviews — better than 86% of Car Speakers we track.
How much does the JBL GTO939 GTO Series 6x9" 300W 3 Way Black Car Coaxial cost?
It is currently $179.95. The 90-day average is $72.70 and the all-time low we recorded is $56.
How does the GTO939 GTO Series 6x9" 300W 3 Way Black Car Coaxial compare to other Car Speakers?
The category's most-reviewed alternative is the Rockford Fosgate P1650 Punch 6.5" 2-Way Coaxial Full Range Speaker (4.6/5, 9,435 reviews, $109.99). The GTO939 GTO Series 6x9" 300W 3 Way Black Car Coaxial carries a Mubboo Score of B vs B+.
Sources & References
Mubboo may earn a commission from purchases made through links on this page. Prices and availability are accurate as of the last sync (2026-06-05) and may change.