What's in the box?
- (2) GTO8628 6”x8”/5”x7” two-way loudspeaker
- (1) Owner's Manual
Shop all Car Speakers
Not finding what you're looking for?Shop all Car Speakers
Product Specs, Manuals, Compatibility & Features
Manuals & Downloads
The latest owner's manuals, quick start guides, and documents.
- 5" x7" / 6" x 8"
- Grand Touring
- Frequency Response
- Power Handling (Peak)
- Power Handling (RMS)
- Nominal Impedance
- 2 ohms
- HF cut: 0dB/-3dB
- Crossover Frequencies
- Low-Frequency Transducer
- PlusOne® HCL™ honeycomb-laminate cone
- High-Frequency Transducer
- 25mm (1") edge-driven My-Ti™ dome, pivoting
Patented Plus One® woofer cones
The JBL-only Plus One® woofer cone (patent # 7,548,631 B2) is exceptionally stiff, lightweight and has up to 25 percent more active surface area than you’ll ever find on competing models of the same size. You get an audible increase in bass output and efficiency.
Increased power handling with My-Ti™ tweeters
Home theater speakers have edge-driven tweeters. So can your car. My-Ti™ tweeters deliver increased power handling and efficiency with reduced distortion. A Mylar®/titanium composite dome makes way for open, smooth spacious sound and a seamless transition between the middle and high frequencies.
Optimal imaging with UniPivot™ rotating tweeter
Another JBL® feat of engineering: You can rotate the tweeter pod nearly 350 degrees to aim it at the listening position for improved high-frequency response and optimal imaging.
Outstanding audio output
This speaker offers 60 watts RMS, 180 watts of peak power handling, 92dB sensitivity, 2-ohm impedance and an accurate frequency response of 50Hz to 21kHz. Hit the gas and have fun.
Can be driven by any head unit
This JBL® Grand Touring™ Series speaker makes the best use of any amplifier by providing an optimum 2-ohm load. They use a lower-impedance voice coil than a typical speaker to extract the most power and performance possible from all amplifiers engineered to drive loads of 4 ohms or less. And it is designed to fit right into factory locations with little or no modification.
Adjustable Tweeter Level
The GTO 8628 allows the tweeter level to be adjusted 0 to +3 decibels to compensate for low and off-axis mounting positions or road noise.
True 4 Ohm Technology
Low-Impedance, three ohm voice coils compensate for the undergauged speaker wiring found in many of today's cars, and make the most of every watt your amplifier or head unit can deliver.
Warranty 1 Year Warranty
Products purchased online or from an authorized local retailer and under warranty may qualify for an exchange with a valid receipt.
Purchases made from an unauthorized dealer will not be elibible for exchange.