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Infinity REF607F + REF687F

360W Peak (120W RMS) 6.5" Reference Series 2-way 4-ohm + 6x8" Reference Series 2-way 3-ohm Coaxial Car Speakers

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• 180 watts Peak Each, 60 watts RMS Each
• 1" Textile Edge-driven Dome tweeters with 3dB level adjustment
• Polypropylene cone material with Plus One woofer cone architecture
• Impedance: 4 ohm
• Sensitivity: 93 dB

Learn more about the ref607f_ref687f
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List price $309.90
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$249.90

 with warranty
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Description


Infinity brand icon

Authorized dealer

Infinity REF607F (INFSPKRF607FUS)

360W Peak (120W RMS) 6.5" Reference Series 2-Way Coaxial 3-ohm Speakers
Quantity: 1

Product Details:

  • 6-1/2" 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: 2-1/16"
  • Cutout Dimensions: 5"
  • Impedance: 3 ohm
  • Frequency Response: 53 - 21000 Hz
  • Sensitivity: 93 dB
  • Authorized Internet Dealer
  • MFR #: REF607F
  • 1-year Manufacturer's Warranty

  • Priced Per Pair

Infinity REF687F (INFSPKRF687FUS)

360W Peak (120W RMS) 6x8" Reference Series 2-Way Coaxial 3-ohm Speakers
Quantity: 1

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


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Specifications & Details


Speaker Specifications
Series
Reference Series
Speaker Size
6" x 8"
Design
2-way Coaxial
Tweeter Design
Dome
Tweeter Composition
Textile
Woofer Composition
Polypropylene
Woofer Surround
Hi-roll Rubber
Total PEAK Per Pair/Set
360 watts
Total RMS Per Pair/Set
120 watts
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:

REF607F_REF687F

Weight:

8.29lbs

Internal SKU:

ref607f_ref687f

Internal Product ID:

207889

Customer Ratings & Reviews


Infinity REF607F + REF687F 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

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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


The following review is for REF607F, which is a part of the bundle you are viewing.
By Rob on January 7, 2025 Checkmark Icon Verified purchase
2018 Honda Fit

1 found this helpful


2014 Kia Soul - Great sound & value

The following review is for REF607F, which is a part of the bundle you are viewing.

Installed in back doors of Kia Soul, pushing them with Kenwood Excelon X302-4 amp (50W RMS x 4), and an Excelon head unit. These speakers sound great!

By Matt on January 10, 2025 Checkmark Icon Verified purchase
2014 Kia Soul




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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.