Infinity 4x6 Coaxial Car Speaker REF-6422cfx 135W

The Infinity REF-6422cfx is a 4x6" coaxial car speaker delivering up to 135W peak power with an edge-driven textile tweeter for clear highs and punchy mids.

Built as part of Infinity's Reference Series, the REF-6422cfx pairs a Plus One™ woofer cone with an edge-driven textile tweeter to maximize output and clarity from a compact 4x6" footprint. With a 3.0 ohm impedance and 92 dB sensitivity, these coaxial speakers are designed to extract strong volume and articulate detail from factory radios or aftermarket head units without demanding high amplifier power.

How will the REF-6422cfx improve everyday listening in my car?

These speakers lift clarity and perceived loudness compared with many factory units by using a high-sensitivity design and a larger cone surface for the 4x6" class. The textile tweeter smooths treble while the Plus One™ woofer moves more air for fuller midrange and low-mid impact.

• 135W peak, 45W RMS per speaker for stronger transient response.
• 92 dB sensitivity yields louder sound from the same head unit output.
• Edge-driven textile tweeter reduces harshness while preserving detail.
• Plus One™ woofer cone increases cone area for deeper, more defined mids.

Will these fit and work with my factory stereo system?

The REF-6422cfx's 4x6" mounting size and 3.0 ohm impedance make it compatible with many factory locations and stock radios. Their high sensitivity helps them play well with lower-power OEM head units without needing an external amp.

• Standard 4x6" form factor for common door or rear-deck locations.
• 3.0 ohm impedance commonly accepted by factory systems.
• High sensitivity reduces the need for added amplification.
• Simple coaxial installation keeps factory wiring intact.

What sound characteristics should I expect from these speakers?

Expect articulate midrange, a controlled low-mid presence and clear, non-fatiguing highs. The edge-driven textile tweeter produces a smoother high end compared with metal domes, while the Plus One™ woofer design helps broaden the perceived low-frequency output for a small speaker.

• Clear high frequencies with reduced sibilance thanks to textile tweeters.
• Full-sounding midrange from the larger cone surface area.
• Balanced response aimed at natural vocals and instruments.
• Good transient handling for punchy music with quick dynamics.

How durable and reliable are these Reference Series speakers?

Infinity designs the Reference Series for long-term automotive use, with materials chosen to resist typical cabin stresses such as temperature swings and vibration. The robust construction helps maintain performance over years of daily driving.

• Textile tweeter resists brittleness and ringing over time.
• Plus One™ woofer cone resists flex for stable sound under power.
• Solid mounting frame to reduce unwanted resonance in door panels.
• Quality electrical contacts for consistent signal transfer.

Who is this for? Drivers who want a clear upgrade over stock 4x6" speakers without adding amplifiers will find the Infinity REF-6422cfx a practical choice. It suits commuters, casual audiophiles, and anyone seeking better vocal clarity and punchy mid-bass from a compact speaker size, while remaining straightforward to install in many factory locations.