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Memphis 15-PR42

4" Power Reference (PR) Series 2-way Coaxial Speakers

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  • 4" Power Reference (PR) Series 2-way Coaxial Speakers
  • Power Handling:
    • Peak: 80 watts per pair / 40 watts each
    • RMS: 40 watts per pair / 20 watts each
  • Graphite reinforced polypropylene cone
  • Durable lightweight polyurethane surround
  • Swivel mount poly-aluminum dome tweeter
  • Metal film crossover capacitor
  • High power handling Kapton voice coil former
  • 4 ohms impedance
  • 8oz. magnet structure
  • Top-mount depth: 1-3/4"
  • 1-year SonicElectronix.com warranty

Priced Per Pair

Product History:
Memphis 15-PR42 thumbnail
(newest, current model)
Memphis 15-PRC4 thumbnail
(previous model, replaced by Memphis 15-PR42)
Speaker Specifications
Speaker Size4"
Design2-way
Tweeter DesignDome
Tweeter CompositionPoly-aluminum
Woofer CompositionGraphite Reinforced Polypropylene
Woofer SurroundPolyurethane
Peak Power Handling40 watts
RMS Power Handling20 watts
Sensitivity86 dB
Frequency ResponseN/A
Impedance (Per Voice Coil)4 ohms
Shallow Mount InstallationYes
Top-Mount Depth1-5/7"
Bottom-Mount Depth1-3/4"
Cutout Dimensions3-1/2
Speaker GrillesYes
Warranty and Return Policy
Return Policy Standard Return Policy
Parts Warranty Duration1 year
Labor Warranty Duration1 year
Warranty ProviderSonic Electronix
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Speaker Wire
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Sound Dampening Material
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Dynamat Xtreme Speaker KitDynamat Xtreme Speaker Kit
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Dynamat Dynaxorb Speaker PakDynamat Dynaxorb Speaker Pak
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Dynamat Rubber RollerDynamat Rubber Roller
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Ballistic Speaker KitBallistic Speaker Kit
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Speaker Baffles, Spacers, and Depth Extenders
Mount your speakers in the location that you need with these speaker spacers, extenders, and adapters.
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3/4" Depth Extender for 4" Speakers3/4" Depth Extender for 4" Speakers
Add 3/4" of extra space when installing your speakers.
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Installation, Tools & Accessories
Get all of the tools and accessories to install your new speakers like a professional, or take your car to an expert and have them installed by redeeming professional installation cards.
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Door Panel & Upholstery Remover ToolDoor Panel & Upholstery Remover Tool
The ideal tool for removing your car's door panels to replace you speakers!
$11.99
Universal Window Handle Remover ToolUniversal Window Handle Remover Tool
Designed to easily remove the manual window handles without breaking any interior pieces.
$4.99
Universal Wire Puller & GrabberUniversal Wire Puller & Grabber
Running wires has never been easier! This wire puller allows you to run wires through those hard to reach places!
$6.99
16-14 AWG Butt Connectors16-14 AWG Butt Connectors
These blue butt connectors are ideal when connecting thicker speaker wire your new aftermarket speakers!
$4.99
Tone Generators and Sound Testing Equipment
Optimize your new system's sound quality by testing and calibrating all of your components with these items.
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AutoSound 2000 CD-101AutoSound 2000 CD-101
Low frequency test CD
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AutoSound 2000 CD-102AutoSound 2000 CD-102
High frequency test CD specifically designed for the set-up and evaluation of sound system imaging and placement.
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AutoSound 2000 CD-103AutoSound 2000 CD-103
Audiophile reference series test disc for evaluation of all audio components.
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Product Summary

Manufacturer: Memphis
Model number: 15-PR42
UPC: 702588118992
Weight: 3.00 lbs
Internal SKU: 15pr42
Internal product ID: 19647
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Customer Testimonial

Angie was a great help. She expedited my order for Xmas and gave me links to resolve issues with PayPal.

She is a great asset to your company.

- BK from Los Angeles

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