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Infinity Reference Series Factory Speaker Replacement Package

Fits select 1989-1993 4Runner

Infinity
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• 105 watts Peak Each, 35 watts RMS Each
• 1/2" Textile Balanced Dome Tweeters
• Polypropylene cone material
• Impedance: 3 ohm
• Sensitivity: 92 dB
• Infinity 4 and 5.25 Inch Speakers

See compatible vehicles Learn more about the 89-93-toyota-4runner-s-inf
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List price $279.90
Thanks , You Pay:
-21%

$219.90

 with warranty
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Description


Infinity brand icon

Authorized dealer

Infinity REF407F (INFSPKRF407FUS)

210W Peak (75W RMS) 4" Reference Series 2-Way Coaxial 3-ohm Speakers
Quantity: 1

Product Details:

  • 4" Reference Series 2-way Coaxial Car Speakers
  • Power Handling:
    • Peak: 210 watts per pair / 105 watts each
    • RMS: 70 watts per pair / 35 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: 1-7/8"
  • Cutout Dimensions: 3-11/16"
  • Impedance: 3 ohm
  • Frequency Response: 75 - 21000 Hz
  • Sensitivity: 92 dB
  • Authorized Internet Dealer
  • MFR #: REF407F
  • 1-year Manufacturer's Warranty

  • Priced Per Pair

Infinity REF507F (INFSPKRF507FUS)

270W Peak (90W RMS) 5.25" Reference Series 2-Way Coaxial 3-ohm Speakers
Quantity: 1

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

Compatible Vehicles


Please use our Fitment Guide to determine specific compatibility for the submodel and audio features

The vehicle you have selected 2021 Kia Stinger is not compatible. Change vehicle or See list of compatible similar products


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Specifications & Details


General specifications
Series
Reference Series
Total PEAK Per Pair/Set
270 watts
Total RMS Per Pair/Set
90 watts
Front speaker specifications
Speaker Size
5-1/4"
Design
2-way Coaxial
Tweeter Design
Edge-driven
Tweeter Composition
Textile
Woofer Composition
Polypropylene
Woofer Surround
Rubber
Sensitivity
92 dB
Frequency Response
67 - 21000 Hz
Impedance (Per Voice Coil)
3 ohm
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

Model Number:

89-93-TOYOTA-4RUNNER-S-INF

Weight:

5.79lbs

Internal SKU:

89-93-toyota-4runner-s-inf

Internal Product ID:

207735

Customer Ratings & Reviews


Infinity Reference Series Factory Speaker Replacement Package 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
4

Customer Reviews

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Sound Great

The following review is for REF507F, which is a part of the bundle you are viewing.

Still have stock radio, and they sound great. Installation was a bit rough, they did not line up with factory srew holes.

By Mark on May 4, 2025 Checkmark Icon Verified purchase

2 found this helpful



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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.