Infinity Alpha 603M 480W 6.5" 3-Way Car Speakers - Pair

Infinity Alpha 603M 480W 6.5" 3-Way Car Speakers - Pair
(INFINITY ALPHA603M)

We Think You Should Know

• 12 Month Australian Warranty
• Purchase Guarantee (see T&C's)
• Infinity ALPHA603M Speakers - 4 Ohm
• 165mm Woofer
• 60W RMS / 480W peak
• 3-way coaxial design
• Patented Plus One™ cone
• 90dB sensitivity for clear output
• 142mm Mounting Diameter
• 55.4mm Mounting Depth
• Frequency: 55Hz - 20kHz

Overview

The Infinity Alpha 603M 6.5" 3-Way Car Speakers Pair deliver precise, live-performance acoustics across standard vehicle passenger cabins. Drivers install this high-end 6.5-inch three-way pair to bring iconic audiophile clarity straight to their factory mounting locations. The high-sensitivity motor layout extracts breathtaking high-resolution detail and impactful mid-bass slam without requiring a mandatory amplifier overhaul.

Key Features:

• Patented Plus One Woofer Cone Architecture – Engineered with HARMAN’s patented Plus One™ cone design (US patent #7,548,631) to offer a significantly larger overall speaker-cone surface area than traditional drivers in its class. This expansion results in higher sensitivity and a notable increase in low-frequency character.
• PEI Balanced Dome Tweeter Assembly – Built using high-grade Polyetherimide (PEI) balanced dome elements that project crystal-clear high frequencies. This specific acoustic material guarantees detailed note reproduction entirely free from harshness or clipping, even at high output listening levels.
• High Output 480W Explosive Peak Capacity – Engineered to effortlessly handle sudden musical transitions and demanding dynamic peaks. Delivering a robust 60 Watts RMS of continuous power and scaling to an impressive 480 Watts peak, these multi-element speakers give a powerful punch to your daily commute.
• New Infinity Industrial ID Aesthetics – Redesigned from the ground up featuring an elegant, modern industrial profile targeted at young audio enthusiasts. This sleek cosmetic upgrade instantly brings contemporary styling to your vehicle's interior while radically elevating the dull sonic character of stock setups.
• Individually Voiced & Competitively Tuned – Avoid flat, mass-produced generic audio profiles. Infinity transducer engineers don't simply build off-the-shelf drivers; they meticulously test and voice each speaker line against the competition and each other to confirm a uniform signature response.
• Drop In Easy Universal Frame Installation – Skip complex door panel modifications or tedious body metal cutting. These 6.5" three-way speakers feature a highly optimised, compact chassis design engineered to slip effortlessly into tight factory cavities across trucks, compact cars, or luxury cruisers.

Ideal For

• Car owners wanting an entry-level speaker upgrade that brings a genuine signature Infinity sound experience at a highly affordable price point
• DIY car audio customisers looking for direct fitment 6.5-inch multi-element speakers that drop into standard door openings without modifying panels
• Daily commuters seeking crisp treble, smooth vocals, and punchy polypropylene mid-bass depth that cleanly cuts through road tyre drone
• Value-conscious young music lovers wanting a stylish speaker pair packed with protective mesh grilles and backed by strict reliability testing

Infinity Car Audio

Since their beginnings in 1968 Infinity Loud Speakers have been renowned for producing some of the best home and car audio speaker systems money could buy and the latest Kappa Series of speakers is no different. Infinity holds many US patents for their speaker designs and technologies from their Plus One cone technologies and true 4-ohm topology through to their exclusive Intermount, I-Mount and Starfish speaker mounting systems. Infinity is truly one of a few genuine speaker brands and a brand we have no hesitation in recommending should you have not heard of them before.

• 1 x Pair of Infinity Alpha 603M 6.5-Inch High-Output 3-Way Car Speakers
• 2 x Protective Sleek Modern Coaxial Speaker Mesh Cover Grilles
• 2 x Adhesive-Backed High-Density Anti-Resonant Foam Installation Gaskets
• 8 x Heavy-Duty Structural Enclosure Chassis Installation Mounting Screws
• 8 x Heavy-Duty Secure Fastening Sheet-Metal Installation Spade Clips
• 1 x Comprehensive Mini Owner's Setup & Configuration Layout Manual