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Infinity REF507F (INFSPKRF507FUS) (Open Box, Good)

270W Peak (90W RMS) 5.25" Reference Series 2-Way Coaxial 3-ohm Speakers

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• 135 watts Peak Each, 45 watts RMS Each
• Textile Edge Driven Dome tweeters
• Polypropylene cone material
• Impedance: 3 ohm
• Sensitivity: 92 dB

Learn more about the ls-ref507f-u7

We apologize

This item has been discontinued

NVX - Worth the Envy - Direct to Consumer Car Audio

Description


Infinity brand icon

Authorized dealer

Item Condition - Open Box, Good:

This product is used, but it will work like new and is in overall good condition. It will show signs of wear that can include scuffing, scratches, fingerprints, dents, and worn corners or installation marks. May be missing non-essential parts, accessories or original packaging.


Infinity REF507F (INFSPKRF507FUS)

New Reference speakers are designed to deliver Infinity’s signature sound in more vehicles. They feature edge-driven textile tweeters for smooth, clear highs and the larger models offer an adjustable tweeter output level control for high-frequency optimization based on installation location or the listener's preference. Oversized Plus One woofers offer more surface area for higher bass output and enhanced midrange performance. Plus newly engineered baskets are optimized to fit most factory speaker locations. Available in a range of standard sizes, they’re the perfect upgrade from factory speakers.


Product Details:

  • 5-1/4" Reference Series 2-way Coaxial Car Speakers
  • Power Handling:
    • Peak: 270 watts per pair / 135 watts each
    • RMS: 90 watts per pair / 45 watts each
  • Polypropylene cone material
  • Rubber speaker surround
  • Textile Edge Driven Dome Tweeters
  • +3dB tweeter boost switch function
  • 3-ohm impedance combines with speaker wire for 4-ohm load
  • Features Plus One woofer cone architecture
  • Increased low-frequency output and accurate sound production
  • Optimized frame size featuring compact design
  • Top-mount Depth: 1-15/16"
  • Cutout Dimensions: 4-1/2"
  • Impedance: 3 ohm
  • Frequency Response: 67 - 21000 Hz
  • Sensitivity: 92 dB
  • Authorized Internet Dealer
  • MFR #: REF507F
  • 1-year Manufacturer's Warranty

  • Priced Per Pair

Specifications & Details


Speaker Specifications
Series
Reference Series
Priced Per
Pair
Number of Speakers
2
Speaker Size
5-1/4"
Design
2-way Coaxial
Tweeter Design
Edge Driven Dome
Tweeter Composition
Textile
Woofer Composition
Polypropylene
Woofer Surround
Rubber
Peak Power Handling
135 watts
RMS Power Handling
45 watts
Total PEAK Per Pair/Set
270 watts
Total RMS Per Pair/Set
90 watts
Sensitivity
92 dB
Frequency Response
67 - 21000 Hz
Impedance (Per Voice Coil)
3 ohm
Shallow Mount Installation
No
Top-Mount Depth (Mounting Depth)
1-15/16"
Cutout Dimensions
4-1/2"
CTA-2031 Compliant
No
General specifications
Marine Certified
No
Hi-Res Certified
No
Color
Black
Illumination
None
Speaker Grilles
No
Includes Damping Kit
without Damping Kit
Compatible vehicle types
Car/Truck/SUV/Van
What is in the box?
Paperwork
User manual
WITB: Speakers
Foam Gasket
Speakers (2)
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

Model Number:

REF507F-4

Weight:

3.11lbs

Internal SKU:

ls-ref507f-u7

Internal Product ID:

230107

Customer Ratings & Reviews


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Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

  • You see only parts engineered for your exact vehicle
  • You avoid incompatible radios, speakers, or wiring
  • Installation is smoother, faster, and frustration-free
  • You get the correct accessories the first time

Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.