Infinity Reference REF607CF 6-1/2" Component Speaker System The Infinity Reference REF607CF is a highly efficient 6.5" component speaker system designed to deliver a significant audio upgrade over factory systems. Part of the popular Reference series, these speakers are engineered for smooth highs and punchy mid-bass, and they are particularly well-suited for vehicles being powered directly by a factory head unit or a modest aftermarket amplifier. Key Features Patented Plus One™ Woofer Technology The REF607CF features polypropylene woofer cones with Infinity's Plus One™ architecture. By extending the cone area further toward the basket, these speakers provide more surface area than standard 6.5" cones. This results in higher sensitivity, better midrange performance, and more robust mid-bass output. Edge-Driven Textile Tweeters Unlike standard dome tweeters, these 3/4" textile tweeters are edge-driven, which allows them to handle more power and provide a smoother, more natural high-frequency response. This design helps reduce "listening fatigue," making them ideal for long drives where you want crisp detail without harshness. Adjustable Tweeter Control The external crossovers include a tweeter level adjustment switch (0dB or +3dB). This is a critical feature for custom installations, allowing you to boost the high frequencies if your tweeters are mounted low in the door or behind thick factory grilles, ensuring a perfectly balanced soundstage. True 4-Ohm Technology While these speakers have a 3-ohm impedance, they are designed as "True 4-ohm" components. When combined with the resistance of your factory speaker wiring, they present a safe 4-ohm load to your receiver while still drawing slightly more power to maximize volume and clarity. Technical Specifications Category Specification Speaker Size 6-1/2" (165mm) Power Handling 90W RMS / 270W Peak Sensitivity (@ 2.83V) 93 dB Frequency Response 53 Hz – 21 kHz Impedance 3.0 Ohms Mounting Depth 2-1/16"
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