Chat
Contact us
Close contact box
Connect ID #
615 596 918 4
Connect ID #
615 596 918 4
Don't wait on hold. We'll call you back when it's your turn to talk with the next available .
Please enter your name  
Please enter your phone number  
Please enter a message  

Calls may be recorded for training and quality control purposes.

We are located in Virginia USA.

Thank you. We will be calling you .
We're sorry. We have encountered a problem.

Audiofrog GB40 GB Series 4" midrange car speakers (pair)

Item # 898GB40

If you haven't heard of Audiofrog yet, here's what you need to know – there's no one like them.

Find what Fits your vehicle

Remove

Checking fit...

If you haven't heard of Audiofrog yet, here's what you need to know – there's no one like them.

California customers:
Please click here for your Proposition 65 warning.

2 questions - 2 answers

Item # 898GB40

Ships free

On backorder
Expected: 5/10/2024

Deeply discounted installation gear

$599.00 pair

About the Audiofrog GB40

Alexander H.

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.

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.

GB40 bezel

Audiofrog provides a versatile bezel for custom installations, or simply unscrew and remove the speaker from the bezel to install in factory locations.

The toughest speaker in town

Audiofrog's GB40 4" midrange speaker sits in your palm with the weight of a stone -- there's not one plastic part in this speaker. Cast zinc housing protects the treated paper cone, which delivers all the complex midrange nuances that define the character of instruments and vocals. A copper polepiece cap helps extend frequency response and reduce distortion, making this little speaker a tough one to beat.

Such an efficient design puts the GB40 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 GB40 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 custom installations. With the included metal mounting hardware, you'll find custom fabrication of a speaker location much easier. The all-metal finish of the GB40s removable ring can be polished, painted or upholstered, depending on your vision for your interior. The grilles are ideal for painting as well.

Audiofrog system recommendations

Here are some of Audiofrog's recommended uses for the GB40:

GB410C component system

2-way system -- GB10 1" tweeters, GB40 4" midrange speakers and GB410C crossover networks

GB410C component system

3-way system -- GB10 1" tweeters, GB40 4" midrange speakers, GB410C crossover networks, and GB60 6-3/4" midrange speakers (NOTE: GB60 will require its own amplifier)

GB415C component system

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

 
GB415C 3-way component system

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

READ LESS

Highlights:

  • 4" treated paper speakers (pair)
  • crossovers not included
  • recommended crossover points: 110 Hz (high-pass) and 6000 Hz (low-pass)
  • rugged 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, keys and foam gaskets included
  • power handling: 20-100 watts RMS (300 watts peak power)
  • frequency response: 80-12,000 Hz
  • impedance: 4 ohms
  • sensitivity: 87 dB
  • flush-mount depth: 1-11/16"
  • warranty: 2 years
  • MFR # GB40

What's in the box:

  • 2 Midrange drivers
  • 2 Grille trays
  • 2 Backing rings
  • 2 Grille retainer rings
  • 2 Grilles
  • 2 Rubber grille U-channel gaskets
  • 2 Adhesive backed foam gaskets
  • Twelve M4x6mm Machine screws (four installed/ 3mm Allen head)
  • Sixteen M3x7mm Machine screws (2.5mm Allen head)
  • Eight 1-1/8" Self-tapping screws (3mm Allen head)
  • Sixteen 5/8" Self-tapping screws (2.5mm Allen head)
  • Eight 3/16" Self-tapping screws (2.5mm Allen head)
  • 3mm Allen head bit
  • 2.5mm Allen head bit
  • 2mm Allen wrench
  • 2 Gray audiofrog labels
  • 2 Black audiofrog labels
  • Instruction manual

Customer reviews for Audiofrog GB40

Loading reviews...

Average review:

4.5 out of 5 stars
8 reviews

Thanks for submitting your review

Filter by rating

Customer photos

Customer provided image, click to load a larger version.
Customer provided image, click to load a larger version.

Sort reviews

Sort by:
Items per page:
View page:

Verified customer (What's this?)
Verified employee review (What's this?)

Reviewed on Samsung.com

This review was collected as part of a promotion

Pros:

Cons:

Crutchfield response
Customer provided image, click to load a larger version.
<< >>

More details on the Audiofrog GB40

Pat M.

Features & specs

General
Speaker Size 4
Design 1-way
Tweeter Design ---
Impedance (Ohms) 4
Tweeter Composition ---
Woofer Composition ---
Woofer Surround NBR
Parts Warranty 2 Years
Labor Warranty 2 Years
Specifications
Sensitivity (1W at 1 meter) N/A
Sensitivity at 2.83 volts 87
Frequency Response 80 - 12k Hz
Minimum RMS Wattage 20
Maximum RMS Wattage 100
Peak Power Handling (Watts) 300
Top-mount Depth (Inches) 1 11/16
Bottom-mount Depth (Inches) N/A
Cutout Diameter or Length (inches) 3 5/8
Mounting Height (Inches) 0.346
Frame Width 4.243
Frame Length 4.243

Product Research

Features

Durability: The Audiofrog GB40 midrange drivers are tested in temperature and humidity extremes, as well as under vibration to simulate 50,000 miles of operation in a vehicle. The Nitrile-Butadiene Rubber (NBR) surround is resistant to ultraviolet rays, temperature extremes, and humidity to add to the speaker's reliability and longevity.

Multi Component Systems: Audiofrog matches sensitivity to voltage across all the midrange drivers in the GB series, making system tuning easy in multi-component systems. The GB40s are designed to mate with the GB10 or GB15 tweeters (item numbers 898GB10 and 898GB15, both sold separately), and can be used in a 3-way system with the GB60 midrange (item number 898GB60, sold separately).

Note: The GB40 requires a band pass crossover. Audiofrog recommends a high pass setting no lower than 110 Hz and a low pass setting no higher than 6 kHz. The minimum recommended slope for both is 12 dB/octave.

Enclosure: If an enclosure is built for the GB40, Audiofrog recommends the internal volume be at least 3 liters (0.114 ft³).

Installation: Hardware is included for several mounting methods. The drivers can be top mounted behind factory grilles, top mounted using the included grilles along with the grille trays and backing rings, or bottom mounted using the included grilles and backing rings.

Screw Terminals: The screw terminals will accommodate up to 12-gauge speaker wire.

Dimensions: When not using a factory grille:

  Top Mounted Bottom Mounted
Frame Diameter 6.031" (grille tray) 5.683" (backing ring)
Cut-Out Diameter 3.5" 4.882"
Mounting Depth 1.55" 1.8"
Mounting Height 1.25" 0.625"

Loading accessories...

Customer Q&A

2 questions already asked

Q
GB40 , can u confirm that the listed price is for 2 and not just one speaker?
ian  Nov 07, 2023
1 answer
A
Greetings Ian. The listed price on the Crutchfield website is for one pair.
hogan  Nov 07, 2023 (Staff)
Q
can anyone tell me how heavy the gb40 speaker package is?
stefan  Nov 25, 2021
1 answer
A
The full package as shipped is 4.2 pounds. Hope that is answering your question.
kenneth  Nov 27, 2021 (Staff)

Loading articles...

Compare the sound