G5.7Xi DS18 GEN-X 5x7" / 6x8" 2-Way Coaxial Car Speakers 150W Max 50W RMS 4-Ohm (Pair)
DS18 G5.7XI GEN-X 5x7" / 6x8" 2-Way Coaxial Car Speakers | 50W RMS 4-Ohm - Pair
An Easy Upgrade from Factory Sound
Give your factory audio system more clarity, detail, and full-range performance with the DS18 G5.7XI GEN-X 5x7" / 6x8" 2-Way Coaxial Speakers.
Designed as a universal-fit solution for compatible 5x7-inch and 6x8-inch factory speaker locations, the G5.7XI makes it easy to replace tired OEM speakers with a durable aftermarket design capable of delivering cleaner vocals, clearer highs, and stronger overall sound.
Each speaker combines a paper woofer cone with rubber surround and a dedicated 1-inch Mylar tweeter, giving you true 2-way performance from a compact factory-replacement platform.
Rated for 50 watts RMS / 150 watts maximum power at 4 ohms, the G5.7XI works well with compatible factory audio systems and aftermarket head units while offering enough power handling to take advantage of a properly matched external amplifier.
For drivers looking for a straightforward 5x7" / 6x8" speaker upgrade without overcomplicating the system, the GEN-X G5.7XI delivers an excellent combination of value, durability, and everyday performance.
Why You'll Love Them
✔ Universal 5x7" / 6x8" Replacement Size
✔ 2-Way Coaxial Speaker Design
✔ 50 Watts RMS / 150 Watts Max Power
✔ 4-Ohm Nominal Impedance
✔ Dedicated 1" Mylar Tweeter
✔ Neodymium Tweeter Magnet
✔ Durable Paper Woofer Cone
✔ Rubber Surround
✔ Heavy-Duty Steel Basket
✔ 85 dB Sensitivity
✔ 40Hz–20kHz Frequency Response
✔ Compact 2.13" Mounting Depth
✔ Factory Radio & Amplifier Friendly
✔ Sold as a Pair
Perfect For
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Factory 5x7" speaker replacement
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Factory 6x8" speaker replacement
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Front door speaker upgrades
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Rear door speaker upgrades
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Factory radio systems
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Aftermarket head unit systems
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Lightly amplified systems
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Cars, trucks, and SUVs with compatible 5x7" / 6x8" locations
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Customers looking for an affordable upgrade over factory speakers
Product Overview
The DS18 G5.7XI is designed for customers who want to improve their factory audio system without jumping into a complicated custom speaker installation.
Many vehicles use oval 5x7" or 6x8" speakers in factory door and rear speaker locations. The G5.7XI's universal 5x7" / 6x8" fitment makes it an excellent option for replacing those factory speakers with a more capable aftermarket design.
Its true 2-way coaxial configuration separates the workload between the woofer and tweeter, allowing each driver to concentrate on the frequencies it reproduces best.
The result is a more complete and detailed listening experience with improved vocal clarity, cleaner upper frequencies, and better overall definition than many basic factory speaker systems.
True 2-Way Coaxial Performance
The G5.7XI combines a dedicated woofer and tweeter into one easy-to-install speaker.
Paper Woofer Cone
The paper cone provides a lightweight, responsive platform for natural-sounding midrange reproduction and everyday musical performance.
Rubber Surround
A durable rubber surround helps control cone movement while providing the flexibility required for reliable everyday operation.
1" Mylar Tweeter
The dedicated Mylar tweeter handles the upper frequencies, adding clarity and detail to vocals, percussion, guitars, and other high-frequency information.
Neodymium Tweeter Magnet
A compact neodymium motor allows the tweeter to deliver clear high-frequency reproduction without adding unnecessary bulk to the speaker assembly.
Together, the woofer and tweeter provide 40Hz–20kHz frequency response for balanced full-range reproduction.
Universal 5x7" / 6x8" Factory Replacement
One of the biggest advantages of the G5.7XI is its versatility.
The speaker is designed as a universal replacement for compatible 5x7-inch and 6x8-inch factory speaker locations, making it particularly useful in vehicles that use these common oval speaker sizes.
With only 2.13 inches of mounting depth, the G5.7XI also maintains a relatively compact installation profile for factory door and panel locations.
Vehicle-specific mounting brackets or wiring harnesses may still be required depending on the application.
Always verify your vehicle's mounting dimensions, bolt pattern, available depth, and factory speaker impedance before installation.
Built for Everyday Reliability
Factory door speakers live in a demanding environment.
Vehicle vibration, repeated temperature changes, and years of daily use can take a toll on lightweight OEM speakers.
The G5.7XI uses a durable steel basket, rubber surround, and robust motor assembly to provide a stronger foundation for long-term use.
This makes it an excellent option for daily drivers where reliability is just as important as improved sound quality.
Factory Radio or Amplifier Ready
With a 4-ohm impedance and 50-watt RMS rating, the G5.7XI offers flexibility for several types of systems.
It can be used in many compatible 4-ohm factory audio applications and works well with aftermarket head units.
For customers looking for additional output and dynamic range, the G5.7XI can also take advantage of clean power from a properly matched external amplifier.
When replacing factory speakers, always verify the impedance of the original system—especially in vehicles equipped with premium factory amplifiers.
Recommended 70Hz High-Pass Crossover
DS18 recommends a 70Hz high-pass crossover for the G5.7XI.
A high-pass filter reduces the deepest bass frequencies reaching the speaker, helping the woofer concentrate on the midbass, midrange, and upper frequencies it is better suited to reproduce.
This becomes especially important when using an aftermarket amplifier or listening at higher volume levels.
For a complete system, allow a dedicated subwoofer to reproduce the deepest bass while the G5.7XI handles the rest of the musical range.
Key Features
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Universal 5x7" / 6x8" Coaxial Car Speakers
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2-Way Coaxial Design
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50 Watts RMS Power Handling
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150 Watts Maximum Power Handling
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4-Ohm Nominal Impedance
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85 dB Sensitivity
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40Hz–20kHz Frequency Response
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Recommended 70Hz High-Pass Crossover
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1" Woofer Voice Coil
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Paper Woofer Cone
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Rubber Surround
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Barium Ferrite Woofer Magnet
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1" Mylar Tweeter
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Neodymium Tweeter Magnet
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Heavy-Duty Steel Basket
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Matte Black Finish
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2.13" Mounting Depth
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Sold as a Pair
Technical Specifications
Brand: DS18
Series: GEN-X
Model / SKU: G5.7XI
Speaker Size: 5x7" / 6x8" Universal Fit
Manufacturer Nominal Size: 5x7" / 127 × 177mm
Speaker Type: 2-Way Coaxial
Number of Ways: 2
Nominal Impedance: 4 Ohms
RMS Power Handling: 50 Watts
Maximum Power Handling: 150 Watts
Sensitivity (1W/1m): 85 dB
Frequency Response: 40Hz–20kHz
Recommended High-Pass Crossover: 70Hz
Woofer Specifications
Voice Coil Diameter: 1" / 25.5mm
Voice Coil Former: ASV
Voice Coil Winding: EISV
Cone Material: Paper
Surround Material: Rubber
Basket Material: Steel
Basket Finish: Matte Black
Woofer Magnet: Barium Ferrite
Magnet Weight: 7.8 oz / 221g
Free-Air Resonance (Fs): 82Hz
Xmax: 2.7mm
DC Resistance (Re): 3.7 Ohms
Tweeter Specifications
Tweeter Size: 1" / 25.5mm
Tweeter Voice Coil: 0.5" / 13.25mm
Voice Coil Former: ASV
Tweeter Diaphragm: Mylar
Tweeter Magnet: Neodymium
Dimensions
Overall Dimensions: 5.57" × 7.6" / 141.5 × 193mm
Overall Depth: 2.63" / 66.8mm
Front Mount Cutout: 4.9" × 7" / 126 × 180mm
Mounting Depth: 2.13" / 54mm
Motor Diameter: 3.4" / 86mm
Tweeter Protrusion: 0.5" / 12.8mm
Grilles Included: No
Sold As: Pair
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What's Included
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(2) DS18 G5.7XI GEN-X 5x7" / 6x8" 2-Way Coaxial Speakers
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Manufacturer Documentation
Sold as a pair. DS18 currently lists the G5.7XI as a pair package.
Will These Fit My Vehicle?
The DS18 G5.7XI is designed as a universal replacement for compatible 5x7-inch and 6x8-inch factory speaker locations.
Before ordering, verify:
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Factory speaker size
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Available mounting depth
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Speaker cutout dimensions
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Factory mounting pattern
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Factory speaker impedance
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Required mounting brackets or adapters
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Required speaker wiring harnesses
The G5.7XI requires approximately 2.13 inches of mounting depth.
Some vehicles use proprietary mounting tabs, brackets, or electrical connectors even when the factory speaker is listed as 5x7" or 6x8". Vehicle-specific adapters may therefore be required for a clean installation.
Factory Radio or Aftermarket Amplifier?
The G5.7XI's 50-watt RMS rating and 4-ohm impedance make it flexible enough for several common system configurations.
Factory Radio Systems
The G5.7XI can work well in many compatible factory-radio systems and is a straightforward option for replacing worn or basic OEM speakers.
However, factory audio systems vary significantly in impedance, equalization, crossover behavior, and available power.
Always verify that the G5.7XI's 4-ohm impedance is compatible with your original system.
Aftermarket Head Units
A quality aftermarket receiver is a natural match for the G5.7XI.
Compared with many factory radios, aftermarket head units may provide improved crossover control and cleaner usable output, allowing these speakers to perform more consistently.
Amplified Systems
The G5.7XI can also benefit from clean external amplifier power.
For a typical pair, a quality amplifier producing approximately 40–50 watts RMS per channel at 4 ohms is a practical match.
You do not need to chase an exact wattage number. Proper gain adjustment, clean unclipped power, and appropriate crossover settings matter more than matching the published RMS rating perfectly.
Recommended Crossover Setup
DS18 recommends a 70Hz high-pass crossover for the G5.7XI.
Recommended Starting Point
High-Pass Filter: 70Hz
This helps reduce the deepest bass frequencies reaching the woofer, allowing the speaker to focus on midbass, vocals, instruments, and high-frequency detail.
Final settings can vary depending on:
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Amplifier power
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Installation location
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Door construction
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Listening preferences
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Whether a dedicated subwoofer is being used
For higher-volume systems, using the recommended high-pass filter is especially important for maintaining cleaner output and reducing unnecessary speaker stress.
Popular Upgrade Applications
Factory Door Speaker Replacement
The G5.7XI is an excellent choice for replacing compatible 5x7" or 6x8" factory door speakers.
Its compact coaxial design provides both woofer and tweeter performance from a single factory location without requiring separate tweeter mounting.
Front Speaker Upgrades
Used in the front doors, the G5.7XI can improve vocal clarity, overall detail, and high-frequency definition compared with many basic factory speakers.
Rear Speaker Replacement
The G5.7XI also works well as a rear-fill speaker in vehicles that use compatible oval factory locations.
This makes it easy to maintain a consistent speaker design throughout the vehicle when upgrading both front and rear locations.
Aftermarket Radio Systems
Customers replacing the factory head unit can pair the G5.7XI with a new receiver for a straightforward system upgrade that improves both source functionality and speaker performance.
Complete Audio Upgrades
For a more complete system, pair the G5.7XI with upgraded front and rear speakers, a properly matched amplifier, and a dedicated subwoofer.
This allows each component to focus on the frequencies it reproduces best.
Installation Notes
Before installation:
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Verify your factory speaker location accepts a compatible 5x7" / 6x8" speaker.
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Confirm available mounting depth.
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Check window and regulator clearance inside doors.
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Verify factory speaker impedance.
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Determine whether speaker brackets are required.
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Determine whether plug-and-play wiring harnesses are available.
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Observe correct polarity.
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Use the recommended high-pass crossover whenever possible.
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Check tweeter protrusion and factory grille clearance before final assembly.
Speaker size alone does not guarantee vehicle fitment.
Pro Audio Center Tip
When upgrading 5x7" / 6x8" factory speakers, resist the temptation to judge performance only by how low the published frequency response goes.
The G5.7XI is a full-range coaxial speaker, but its real strengths are midbass, vocals, musical detail, and high-frequency clarity.
If your system includes a subwoofer, letting the sub handle the deepest bass while high-passing the G5.7XI around DS18's recommended 70Hz will typically produce a cleaner and better-balanced system.
Complete Your Speaker Upgrade
Depending on your vehicle and system goals, consider pairing the G5.7XI with:
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Matching front or rear coaxial speakers
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Vehicle-specific mounting adapters
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Plug-and-play speaker harnesses
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Multi-channel amplifier
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OFC speaker wire
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Sound deadening
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DSP or signal processor
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Dedicated subwoofer
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Monoblock subwoofer amplifier
For factory replacement installations, vehicle-specific adapters and harnesses can simplify installation while helping preserve the original wiring.
Expert Recommendation from Pro Audio Center
The DS18 G5.7XI is a strong choice for customers who want an affordable, straightforward upgrade for compatible 5x7" / 6x8" factory speaker locations.
What we like about it is the practical combination of:
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50W RMS power handling
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4-ohm impedance
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True 2-way coaxial design
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1" Mylar tweeter
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Rubber surround
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Manageable 2.13" mounting depth
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Universal 5x7" / 6x8" fitment
We'd recommend it most strongly for customers upgrading a daily driver who want noticeably better sound without moving into a higher-powered component or pro-audio system.
Pair it with a quality aftermarket head unit or modest external amplifier, use the proper crossover, and add a subwoofer if strong low-frequency bass is part of your goal.
Why Buy From Pro Audio Center?
Replacing factory speakers involves more than choosing a speaker with the same nominal size.
Mounting depth, factory impedance, bolt patterns, wiring connectors, crossover settings, and the rest of the system all affect fit and performance.
At Pro Audio Center, we focus on helping customers choose components that work together properly so the installation is easier and the finished system performs the way it should.
Frequently Asked Questions
Are the DS18 G5.7XI speakers sold individually or as a pair?
The G5.7XI is sold as a pair, so your purchase includes two coaxial speakers.
Are these 5x7" or 6x8" speakers?
The G5.7XI is designed as a universal 5x7" / 6x8" replacement speaker for compatible factory locations.
Always verify the mounting dimensions and bolt pattern in your specific vehicle before ordering.
How much power do these speakers handle?
Each speaker is rated for 50 watts RMS and 150 watts maximum power.
For system planning, we recommend focusing on the 50-watt RMS rating rather than maximum power.
What impedance are they?
The G5.7XI uses a 4-ohm nominal impedance.
Always verify the impedance of your factory audio system before replacing OEM speakers, particularly in vehicles equipped with premium factory amplification.
Can I run these from my factory radio?
In many compatible 4-ohm applications, yes.
Actual performance depends on the factory radio or amplifier's available power, equalization, and crossover configuration.
Do I need an amplifier?
No.
The G5.7XI can work with many factory radios and aftermarket head units. A properly matched amplifier can provide additional clean output and dynamic range, but an external amplifier is not required for every installation.
What amplifier works well with a pair?
For a pair of G5.7XI speakers, a quality amplifier producing approximately 40–50 watts RMS per channel at 4 ohms is a good target.
Correct gain adjustment is more important than matching the RMS rating exactly.
What crossover should I use?
DS18 recommends a 70Hz high-pass crossover.
This is a good starting point for reducing deep-bass stress while allowing the speakers to focus on the frequency range they reproduce best.
Will these produce bass?
They can provide useful midbass and full-range sound, but they should not be expected to replace a dedicated subwoofer.
If deep low-frequency bass is important to you, pair them with a subwoofer system.
Do these have built-in tweeters?
Yes. Each speaker uses a dedicated 1-inch Mylar tweeter with a neodymium magnet, making the G5.7XI a true 2-way coaxial speaker.
Will these fit my Ford?
Many Ford vehicles use 5x7" / 6x8" factory speaker locations, making the G5.7XI a potential replacement option.
However, Ford fitment varies by model, year, factory audio package, mounting depth, and bracket design. Always verify your exact vehicle before ordering.
Do I need speaker adapters or wiring harnesses?
Possibly.
Many vehicles use proprietary mounting brackets and electrical connectors. Vehicle-specific adapters can provide a cleaner installation and help avoid cutting factory wiring.
Are grilles included?
No. Speaker grilles are not included. In most factory replacement applications, the speakers install behind the vehicle's original trim panel or factory grille.