Diamond Audio HXM57F2BK 5×7 Harley Direct Replacement Speakers | 2Ω – Pair
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Diamond Audio HXM57F2BK 5×7 Harley Direct Replacement Speakers | 2Ω – Pair
$429.99
$429.99
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Diamond Audio HXM57F2BK 5×7 Harley Direct Replacement Speakers | 2Ω – Pair
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Diamond Audio HXM57F2BK 5×7 Harley Direct Replacement Speakers
Upgrade a compatible Harley-Davidson factory 5×7-inch speaker location with the Diamond Audio HXM57F2BK high-output two-way coaxial speaker pair. The 2-ohm design, rigid carbon-fiber cones and oversized titanium tweeters are engineered for strong output and improved clarity in an open-air motorcycle environment.
Each speaker handles 150 watts RMS and uses a lightweight neodymium motor, extended-excursion suspension and a high-temperature composite basket. Water-spray, saltwater and UV-resistant materials help prepare the speakers for demanding motorcycle and powersports installations.
High-Output Harley Speaker Pair
- 5×7-inch two-way coaxial speaker system
- Harley-Davidson direct-replacement design
- Sold as one matched pair
- 2-ohm nominal impedance per speaker
- 150 watts RMS per speaker
- 300 watts maximum per speaker
- Rigid carbon-fiber cones
- 1.25-inch titanium dome tweeters
- Lightweight neodymium motor structures
- Water-spray, saltwater and UV-resistant construction
HXM57F2BK Speaker Overview
The Diamond Audio HXM57F2BK is designed as a high-output replacement for compatible Harley-Davidson 5×7-inch speaker locations. Its two-way coaxial configuration combines a carbon-fiber midrange cone and an oversized titanium dome tweeter in one compact direct-replacement speaker assembly.
The 2-ohm voice-coil configuration allows a compatible motorcycle amplifier to deliver more output than it typically would into a 4-ohm load. Each speaker must be connected to an amplifier channel that is stable at 2 ohms and configured to remain within the speaker’s usable power range.
Diamond Audio uses a lightweight neodymium motor, extended-excursion suspension and a high-temperature molded composite basket to support strong output without excessive speaker weight.
Why Riders Choose the HXM57F2BK
Harley Direct-Replacement Design
The 5×7 frame is designed for compatible factory-style Harley speaker locations, reducing the fabrication associated with a universal speaker installation.
High-Power 2Ω Operation
The 2-ohm impedance is suited to compatible motorcycle amplifiers designed to produce increased output into lower-impedance loads.
Carbon-Fiber Cone
A rigid, lightweight carbon-fiber cone supports controlled movement, stronger output and improved durability in open-air audio systems.
Oversized Titanium Tweeter
The 1.25-inch titanium dome tweeter is designed to produce detailed high-frequency output that remains audible through wind, engine and road noise.
Neodymium Motor
The lightweight neodymium motor structure supports high output while reducing the weight associated with a conventional ferrite magnet.
Weather-Resistant Materials
Water-spray, saltwater and UV-resistant materials help protect the speakers in motorcycle, marine and powersports environments.
Two-Way Coaxial Speaker Design
Carbon-Fiber Midrange Cone
The main cone reproduces the vocal, instrument and lower-frequency content handled by the speaker. Its rigid construction supports cleaner movement under higher amplifier output.
Titanium Dome Tweeter
The integrated 1.25-inch tweeter reproduces the upper frequencies, creating a complete two-way speaker without requiring a separate externally mounted tweeter.
Amplifier Power and Impedance Matching
2Ω Per Speaker
Each HXM57F2BK speaker has a nominal impedance of 2 ohms and should normally be powered from its own compatible amplifier channel.
150W RMS Per Speaker
Select and configure the amplifier around the speaker’s continuous RMS rating rather than its short-duration maximum-power figure.
Clean Signal Required
Correct gain structure, filtering and unclipped amplifier output are critical to reliable operation in a high-output motorcycle system.
Diamond Audio HXM57F2BK Specifications
Weather-Resistant Motorcycle Construction
Water-Spray Resistance
The speaker materials are designed to tolerate water spray encountered in open-air motorcycle and powersports installations.
Saltwater Resistance
Materials selected for saltwater resistance provide additional protection in humid and coastal environments.
UV-Stable Materials
UV-stable components help reduce deterioration caused by prolonged exposure to direct sunlight.
Harley-Davidson Fitment Notes
- Confirm that the motorcycle uses a factory-style 5×7-inch speaker opening.
- Verify whether the intended location is a saddlebag lid, fairing or custom enclosure.
- Measure the actual opening before relying on the published cutout dimension.
- Confirm at least 2.55 inches of rear mounting depth.
- Check the 3.11-inch overall height against the grille or lid clearance.
- Confirm that the speaker terminals clear the enclosure and mounting hardware.
- Verify that the amplifier is stable at 2 ohms per channel.
- Do not assume universal fitment across all Harley-Davidson Touring models.
- Use the factory hardware or appropriate replacement fasteners for the application.
- Professional fitment verification is recommended before modifying painted lids.
Installation and System Setup
- Disconnect the motorcycle battery before beginning the installation.
- Remove the existing speaker and inspect the complete mounting opening.
- Compare the HXM57F2BK basket and mounting pattern with the factory location.
- Confirm mounting depth, terminal clearance and grille clearance.
- Verify that the amplifier channel is stable at a 2-ohm load.
- Observe correct positive and negative speaker polarity.
- Use weather-resistant terminals or connectors suitable for the location.
- Configure appropriate high-pass filtering for the installation.
- Set amplifier gain using clean measured output.
- Secure all wiring against vibration, moisture, heat and sharp edges.
- Test both speakers before reinstalling the fairing or saddlebag components.
- Inspect for rattles, air leaks and mechanical interference after assembly.
Best For
- Compatible Harley-Davidson factory 5×7 speaker replacements
- Harley Touring motorcycles using supported 5×7 locations
- Two-ohm motorcycle amplifier systems
- Riders wanting stronger output than a basic factory speaker
- Systems requiring integrated midrange and high-frequency reproduction
- Motorcycle installations exposed to sunlight and occasional water spray
- Amplified Harley-Davidson audio systems
Related Motorcycle Audio Categories
Motorcycle Speaker Upgrades
Amplifiers and Integration
Diamond Audio HXM57F2BK FAQ
Are the HXM57F2BK speakers sold as a pair?
Yes. The product includes two matched 5×7-inch coaxial speakers.
What impedance are the speakers?
Each speaker has a nominal impedance of 2 ohms.
How much power can each speaker handle?
Each HXM57F2BK is rated for 150 watts RMS and 300 watts maximum.
Does each speaker include a tweeter?
Yes. Each coaxial speaker includes an integrated oversized 1.25-inch titanium dome tweeter.
What material is used for the main cone?
The main speaker cone uses rigid carbon-fiber construction.
What amplifier should be used?
Use an amplifier that is stable at 2 ohms per channel and can be configured around the speakers’ 150-watt RMS rating.
Are these direct-replacement Harley speakers?
Diamond Audio markets them as Harley-Davidson 5×7 direct-replacement speakers. Exact year, model and speaker-location compatibility must still be verified.
Are these fairing or saddlebag speakers?
Diamond Audio’s current official page contains conflicting references to lid and fairing locations. Confirm the actual factory 5×7 location on the motorcycle before ordering.
What is the mounting depth?
The published mounting depth is 2.55 inches, or 64.84mm.
Can these be flush mounted or rear mounted?
Diamond Audio lists both flush-mount and rear-mount installation capability, subject to the enclosure and mounting location.
Are the speakers waterproof?
Diamond Audio describes them as resistant to water spray and saltwater and built with UV-stable materials. The manufacturer does not publish a waterproof IP rating for this model.
Do these require a DSP?
A DSP is not required for basic operation, but a compatible processor can provide more precise filtering, equalization, time alignment and output control.
Need Help Confirming Your Harley 5×7 Speaker Fitment?
Garage Bagger Stereo can help verify the motorcycle’s speaker location, mounting depth, 2-ohm amplifier compatibility, wiring, filtering and factory or aftermarket signal integration before the speakers are installed.