Infinity Reference REF607F 6.5" Coaxial Speakers

Product Overview

Give your car’s front soundstage fuller midbass and clear, detailed highs with the Infinity Reference REF607F 6.5-inch coaxial speakers. Their oversized Plus One+ woofer cone and adjustable edge-driven tweeter help balance the sound for everyday listening.

Designed as a factory-speaker upgrade, this pair suits music and spoken audio alike. The tweeter’s level adjustment lets you tailor the high-frequency presentation to its mounting position.

Key Features & Benefits

• Plus One+ woofer cone: The oversized polypropylene cone moves more air than a conventional 6.5-inch woofer for stronger midbass and a fuller low-mid range.
• Hi-roll rubber surround: Supports controlled cone movement and long-term durability, while helping reduce distortion at higher output.
• Adjustable edge-driven tweeter: The 1-inch textile dome tweeter includes a 3.0 dB level adjustment to help tailor the soundstage when door mounting positions vary.
• True Four Ohm Impedance technology: The 3-ohm speaker plus wire presents a true 4-ohm load to the head unit.
• Efficient output: A sensitivity rating of 93 dB @ 2.83V supports use with a standard head unit or modest amplification.

Technical Specifications

Why Choose This Product?

The REF607F combines a larger-than-conventional woofer cone with a level-adjustable tweeter, giving you useful sound-shaping options in a coaxial design. Its 52–21,000 Hz frequency response spans bass fundamentals through crisp treble, while its 60W RMS rating provides headroom for everyday amplification and musical transients.

Use the pair to refresh factory-supplied 6.5-inch speakers when you want stronger midbass without adding processing. The 2.44-inch top-mount depth gives you a measurement to compare against your available mounting space.

Installation & Compatibility Notes

Check your vehicle’s speaker opening and available mounting depth before installation. The listed top-mount depth is 2.44 inches. The speakers are designed to fit behind factory grilles or panels in most applications, but grilles are not included.

The speakers present a true 4-ohm load to the head unit through True Four Ohm Impedance technology. Review your source unit’s requirements and the included instruction manual when planning the installation.

Frequently Asked Questions

What size are the Infinity Reference REF607F speakers?

They are 6.5-inch two-way coaxial speakers. Their top-mount depth is 2.44 inches.

What do the power ratings mean?

The pair is rated for 60W RMS and 180W peak power handling. RMS and peak are separate ratings, so compare them with your source or amplification specifications.

What load do these speakers present to a head unit?

The True Four Ohm Impedance technology operates as a 3-ohm speaker plus wire to present a true 4-ohm load to the head unit.

Can I use the factory grilles?

The speakers are designed to fit behind factory grilles or panels in most applications. Grilles are not included; optional grilles are available for custom installations.

What comes in the box?

The package includes two 2-way speakers, mounting hardware, two adhesive-backed foam gaskets, and an instruction manual.

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Shop the Infinity Reference REF607F at 12 Volt Outlet. Want to learn more about Infinity? Explore our Infinity brand profile.