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Infinity REF307F (INFSPKRF307FUS)

150W Peak (50W RMS) 3.5" Reference Series 2-Way Coaxial 3-ohm Speakers

Infinity
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• 75 watts Peak Each, 25 watts RMS Each
• 1/2" Textile Edge Driven Dome Tweeters
• Polypropylene cone material
• Impedance: 3 ohm
• Sensitivity: 91 dB

Learn more about the ref307f
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List price $129.95
Thanks , You Pay:
-23%

$99.95

/pair  with warranty
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Description


Infinity brand icon

Authorized dealer


Infinity REF307F (INFSPKRF307FUS)

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:

  • 3-1/2" Reference Series 2-way Coaxial Car Speakers
  • Power Handling:
    • Peak: 150 watts per pair / 75 watts each
    • RMS: 50 watts per pair / 25 watts each
  • Polypropylene cone material
  • Rubber speaker surround
  • 1/2" 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: 1-7/16"
  • Cutout Dimensions: 3"
  • Impedance: 3 ohm
  • Frequency Response: 85 - 21000 Hz
  • Sensitivity: 91 dB
  • Authorized Internet Dealer
  • MFR #: REF307F
  • 1-year Manufacturer's Warranty

  • Priced Per Pair


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Specifications & Details


Speaker Specifications
Series
Reference Series
Priced Per
Pair
Number of Speakers
2
Speaker Size
3-1/2"
Design
2-way Coaxial
Tweeter Design
Edge Driven Dome
Tweeter Size
1/2"
Tweeter Composition
Textile
Woofer Composition
Polypropylene
Woofer Surround
Rubber
Peak Power Handling
75 watts
RMS Power Handling
25 watts
Total PEAK Per Pair/Set
150 watts
Total RMS Per Pair/Set
50 watts
Sensitivity
91 dB
Frequency Response
85 - 21000 Hz
Impedance (Per Voice Coil)
3 ohm
Shallow Mount Installation
No
Top-Mount Depth (Mounting Depth)
1-7/16"
Cutout Dimensions
3"
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:

REF307F

Weight:

1.80lbs

Internal SKU:

ref307f

Internal Product ID:

202375

Customer Ratings & Reviews


Infinity REF307F (INFSPKRF307FUS) thumbnail image

5 star
100%
4 star
0%
3 star
0%
2 star
0%
1 star
0%



Durability
5
Value
5
Features
5
Design
5
Usability
5

Customer Photos & Videos


Customer Reviews

Sort by:

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Perfect fit

I couldn’t hear my stock 3.5 speaker at all so I upgraded to the infinity and the sound is so pure and clear

By Jose on June 28, 2024 Checkmark Icon Verified purchase
2022 Toyota Tundra

10 found this helpful


Sounds amazing

I had a faulty stock speaker in my Mustang Mach E and this replacement is just what the Dr ordered. Perfect fit and super easy install.

By J on April 30, 2025 Checkmark Icon Verified purchase
2022 Ford Mustang Mach-E

1 found this helpful


Sound way clearer and better then the stock ones that were in my truck. Could see a big difference in weight too, and how much bigger the magnet was from the stock ones ????????

By Jonathan on January 31, 2025 Checkmark Icon Verified purchase
2009 Dodge Ram 1500

1 found this helpful


By kys on December 9, 2025 Checkmark Icon Verified purchase




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