Infinity Reference REF607FSL 6.5" Shallow Mount Coaxial Speakers

The Infinity Reference REF607FSL is a 6.5" 2‑way shallow‑mount coaxial speaker built for vehicles where standard-depth speakers won’t fit, delivering Reference Series sound in a compact install. Its reduced mounting depth and smaller magnet profile let it drop into tight door cavities and factory locations while preserving the core Reference Series sound quality.

• 6.5" 2‑way shallow‑mount coaxial (pair): designed to fit in tight spaces yet retain a true two‑way setup for clearer highs and stronger midbass.
• Plus One+ polypropylene woofer cone with hi-roll rubber surround: larger surface area than a standard 6.5" cone moves more air, boosting midbass in a compact form factor.
• 1/2" textile balanced-dome tweeter: smooth high-frequency extension for clear detail without harshness.
• Adapter rings included for various speaker openings: helps achieve a secure, flush install across different OEM openings.
• True Four Ohm Impedance technology (3-ohm speaker + wire = 4-ohm load): ensures compatibility with most factory and aftermarket head units without extra hardware.
• Power handling: handles up to 55W RMS (165W peak) for confident performance with common head units and modest amps.
• Frequency response: 57–21,000 Hz for a broad full‑range presentation across music genres.
• Sensitivity: 93 dB @ 2.83V, offering good output with typical car audio inputs.
• Top-mount depth: 1.78" to fit shallow mounting environments.
• Grilles not included: factory grilles are suitable for most applications.
• Warranty: 1 year
• What’s in the box: Two 2‑way shallow‑mount speakers; 2 plastic mounting rings; mounting screws and speed clips; 2 adhesive-backed foam gaskets; instruction manual

In a real car build, REF607FSL suits shallow‑door installs and OEM openings without forcing compromises. The Plus One+ woofer keeps midbass solid despite the compact depth, while the 1/2" tweeter provides clear highs. Its 57 Hz lower limit supports enough bass presence from a 6.5" driver, and the 4‑ohm load aids straightforward integration with common head units and amplifiers, aided by included adapter rings for accurate fitment.