Infinity Alpha 603F coaxial speaker 165mm 60 480W 90dB 55Hz–20kHz 4ohm

Infinity Alpha 603F — Powerful Coaxial Speakers

Discerning listeners looking for quality sound in their vehicle will appreciate the Infinity Alpha 603F coaxial speakers. These 165mm speakers combine high performance, precision and durability. With a rated power of 60 W RMS and a maximum power of 480 W, they can handle a wide range of sound sources, from factory car stereos to powerful amplifiers. The patented Plus One polypropylene diaphragm provides a larger effective area, which results in higher sensitivity 90 dB and stronger output in the bass and midrange. Accurate high-frequency reproduction is provided by the PEI balanced dome tweeter, which handles frequencies up to 20 kHz without distortion. These speakers combine top-notch sound with easy installation, making them an ideal choice for a wide range of vehicles.

Exceptional audio performance and frequency response

The Infinity Alpha 603F speakers are designed to cover the entire audible range with a 55 Hz - 20 kHz frequency response. This means you'll enjoy deep bass, clear mids and clear highs with minimal distortion. The combination of the Plus One polypropylene cone and the balanced PEI tweeter delivers an accurate and rich audio experience that will satisfy even the most demanding listeners.

Easy installation and universal compatibility

The speakers are compatible with most cars and trucks thanks to their universal mounting dimensions. 4 Ω nominal impedance allows direct connection to factory and aftermarket car stereos without the need for additional modifications. In addition, their robust construction has been tested for reliability and environmental resistance, ensuring a long service life even in harsh conditions.

Technical data

• Type: Coaxial car speaker without grille
• Diameter: 6-1/2" (165 mm)
• Power handling: 60 W RMS, 480 W max.
• Sensitivity: 90 dB (at 2.83 V)
• Frequency range: 55 Hz - 20 kHz
• Impedance: 4 Ω
• Woofer cone: Polypropylene, Plus One architecture
• Tweeter: PEI balanced dome

Package contents

• 2 speakers
• 8 screws
• 8 flat connectors
• Quick start guide