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Infinity Reference Series Complete Factory Speaker Replacement Kit

Fits select 2004-2006 F-150

Infinity
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• 180 watts Peak Each, 60 watts RMS Each
•1" Textile Dome tweeters
• Polypropylene cone material with Plus One woofer cone architecture
• Impedance: 4 ohm
• Sensitivity: 93 dB

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List price $345.88
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$223.88

 with warranty
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Description


Infinity brand icon

Authorized dealer

Infinity REF687F

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, our newly engineered baskets are optimized to fit most factory speaker locations.

Infinity REF687F (INFSPKRF687FUS)

360W Peak (120W RMS) 6x8" Reference Series 2-Way Coaxial 3-ohm Speakers
Quantity: 2

Product Details:

  • 6" x 8" Reference Series 2-way Coaxial Car Speakers
  • Power Handling:
    • Peak: 360 watts per pair / 180 watts each
    • RMS: 120 watts per pair / 60 watts each
  • Polypropylene cone material
  • Rubber speaker surround
  • 1" 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: 2-7/16"
  • Cutout Dimensions: 7-1/4 x 5 
  • Impedance: 3 ohm
  • Frequency Response: 49 - 21000 Hz
  • Sensitivity: 93 dB
  • Authorized Internet Dealer
  • MFR #: REF687F
  • 1-year Manufacturer's Warranty

  • Priced Per Pair

NVX NSH-5600 Speaker Harness for 1998-2019 Ford, Mazda, Lincoln

Install New Speakers in select 1998-2019 vehicles from Ford, Mazda, Lincoln
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Product Features:

Compatible Vehicles


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

The vehicle you have selected 2002 Dodge Durango 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
360 watts
Total RMS Per Pair/Set
120 watts
Front speaker specifications
Speaker Size
6" x 8"
Design
2-way Coaxial
Tweeter Design
Dome
Tweeter Composition
Textile
Woofer Composition
Polypropylene
Woofer Surround
Hi-roll Rubber
Sensitivity
93 dB
Frequency Response
49 - 21,000 Hz
Impedance (Per Voice Coil)
4 ohm
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

Model Number:

04-06-FORD-F-150-S-INF

Weight:

8.70lbs

Internal SKU:

04-06-ford-f-150-s-inf

Internal Product ID:

207797

Customer Ratings & Reviews


Infinity Reference Series Complete Factory Speaker Replacement Kit 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 Reviews

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Sound Wonderful. Excellence as expected from infinity. Got mine on a SKAR 75.4 amp. They rock. Solid bass and crystal clear highs.

The following review is for REF687F, which is a part of the bundle you are viewing.

Best sounding 6X8's I've ever owned. I have them paired two a Kenwood excelon 795bh receiver and there very loud. Very punchy in the midrange and exceptional Bass. Infinity The name says it All.....

By Shannon on May 23, 2025 Checkmark Icon Verified purchase
2003 Ford F-150

1 found this helpful



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