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Audiofrog GB15

1-1/2" soft dome tweeters

1 Review

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Our take on the Audiofrog GB15

If you haven't heard of Audiofrog yet, here's what you need to know – there's no one like them. We know, because we put their speakers to the test, side by side with some of the most celebrated car speakers in car audio. Track after track, with music that spanned many genres, Audiofrog's speakers made our jaws drop.

A big splash

If you haven't heard of Audiofrog yet, here's what you need to know – there's no one like them. We know, because we put their speakers to the test, side by side with some of the most celebrated car speakers in car audio. Track after track, with music that spanned many genres, Audiofrog's speakers made our jaws drop.

It's no coincidence. Audiofrog was founded by car audio veterans, who have been on the front lines of audio innovation for 30 years and have a rich, colorful history of crafting award-winning, custom car installations. Drawing on that substantial experience and their practical knowledge of what makes a great speaker, Audiofrog has created a no-nonsense, high-quality car audio line. While their speakers will fit into a large number of vehicles, Audiofrog's emphasis is definitely on custom installations.

GB15 installation gear

Audiofrog provides versatile mounting solutions for flush and behind-the-panel installation.

The toughest tweeters in town

Audiofrog's GB15 1-1/2" tweeter sits in your palm with the weight of a stone -- there's not one plastic part in this speaker. Cast zinc housing protects the polyester soft dome, which delivers impressive performance that's as lush and nuanced as live sound. A copper polepiece cap helps extend frequency response and reduce distortion, making this tweeter a tough one to beat.

Such an efficient design puts the GB15 near the top of its class in the realm of power handling, with a rating of up to 100 watts RMS. Add in Audiofrog's grueling standards for real world speaker testing, and you can trust that the GB15 will live a very long life in your car.

Built for custom installations

Audiofrog was founded by experienced installers, who know all the pitfalls and shortcuts of tweeter installation. The all-metal finish of the GB15's removable ring and tray can be polished, painted or upholstered, depending on your vision for your interior. The grilles are ideal for painting as well.

With this tweeter's unique metal mounting bracket, you'll find custom fabrication of pillar and sail panel pods much easier. The bracket's versatile straps provide for numerous installation scenarios as well. Without the mounting bracket, the GB15 will fit a standard sawhole cut. Audiofrog's unique threaded design for flush-mounting allows for the snuggest fit possible, complete with set screws to ensure the tweeter stays locked in position. Any way you install it, this versatile tweeter gives you the potential to gain the widest possible soundstage for total musical immersion.

Audiofrog system recommendations

Here are some of Audiofrog's recommended uses for the GB15:

GB415C component system

2-way system -- GB15 1-1/2" tweeters, GB40 4" midrange speakers, and GB415C crossover networks

GB615C component system

2-way system -- GB15 1-1/2" tweeters, GB60 6-3/4" midrange speakers, and GB615C crossover networks

GB615C 3-way component system

3-way system -- GB15 1-1/2" tweeters, GB40 4" midrange speakers, GB415C crossover networks, and GB60 6-3/4" midrange speakers (NOTE: GB60 will require its own amplifier)


  • 1-1/2" polyester soft dome tweeters (pair)
  • versatile cast zinc housing
  • flush and behind-the-panel mounting kits with all metal parts
  • screw terminals
  • removable grille mesh and trim ring can be painted
  • hex screws and tools included
  • power handling: 20-100 watts RMS (300 watts peak power)
  • frequency response: 1,300-20,000 Hz
  • impedance: 4 ohms
  • sensitivity: 92 dB
  • flush-mount depth: 1-1/4"
  • warranty: 2 years
  • Our 60-day money-back guarantee

What's in the Box:

  • 2 Tweeters
  • 2 Flush-mount trim rings
  • 2 Threaded rear bracket
  • 2 Strap mount brackets
  • 2 Rear support brackets
  • Eight M2x2.5mm Machine screws (1.5mm Allen head)
  • Two M4x20mm Stud bolts (2mm Allen head)
  • Four M4x6mm Stud bolts (2mm Allen head)
  • 2 Lock washers
  • Six M4 Nuts
  • Eight 5/8" Self-tapping screws (2.5mm Allen head)
  • 2.5mm Allen head bit
  • 2mm Allen wrench
  • 1.5mm Allen wrench
  • 2 Gray audiofrog labels
  • 2 Black audiofrog labels
  • Instruction manual

I'm really happy with the quality of Audio Frog products. These tweets give me all the detail I was missing from my stock speakers and more. They're smooth, has much clarity (I can make out words where I couldn't before), and the install pieces make it much easier to install.

Jimi, Fountain Valley, CA


Audiofrog GB15 Reviews

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Hands-on research

Features and Specs

Speaker Size
Design 1-way
Tweeter Design 1-1/2" Dome
Impedance (Ohms) 4
Tweeter Composition Polyester
Woofer Composition ---
Woofer Surround ---
Parts Warranty 2 Years
Labor Warranty 2 Years
Sensitivity (1W at 1 meter) N/A
Sensitivity at 2.83 volts 92
Frequency Response 1300 - 20k Hz
Minimum RMS Wattage 20
Maximum RMS Wattage 100
Peak Power Handling (Watts) 300
Top-mount Depth (Inches) 1 1/4
Bottom-mount Depth (Inches) 1 3/4
Cutout Diameter or Length (inches) 2

Product Research


Durability: The GB15 tweeters are tested in temperature and humidity extremes, as well as under vibration to simulate 50,000 miles of operation in a vehicle.

Multi Component Systems: Audiofrog makes passive crossovers that mate the GB15 tweeters to two of their GB series midrange (crossovers and midrange are all sold separately):

Note: Audiofrog recommends using a high pass crossover no lower than 1.8 kHz with a slope no less than 12 dB/octave.

Screw Terminals: The screw terminals will accommodate up to 14-gauge speaker wire.

Grille: The tweeter grilles are removable and can be painted to match your interior. (Out of the box they're black.)

Mounting Options: The versatile mounting hardware included allows installation in many factory tweeter locations, as well as custom applications:

  Mounting Depth Mounting Height Frame Diameter Cutout Diameter
Flush Mount 1.2" 0.53" 2.725" 2"
Flush Mount w/strap bracket 1.2" 0.53" 2.725" 2"
Bottom Mount w/strap bracket 1.73" 0" 2.725" N/A

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team. They verify what’s in the box, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.

Staff Reviews

Product reviews from the Crutchfield Labs

Packaged with every pair of Audiofrog GB Series speakers is versatile mounting gear that will prepare you for a variety of installation challenges.

What are the Labs?
Q & A

Customer Q&A


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