Infinity Primus 603F 150W 6.5" Coaxial Car Speakers

Infinity Primus 603F 150W 6.5" Coaxial Car Speakers - Pair
(INFINITY PRIMUS603F)

We Think You Should Know

• 12 Month Australian Warranty
• Purchase Guarantee (see T&C's)
• Infinity Primus 603F Speakers - 3 Ohm
• 160mm Woofer
• 50W RMS / 150W peak
• 92dB sensitivity for clear output
• 127mm Mounting Diameter
• 48.5mm Mounting Depth
• Frequency: 55Hz - 20kHz
• Patented Plus One™ cone

Overview

The Infinity Primus 603F 6.5" Coaxial Car Speakers deliver precise, live-performance acoustics across standard vehicle passenger cabins. Drivers install this high-end 6.5-inch coaxial 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 using HARMAN's patented Plus One™ design to maximize overall speaker-cone surface area within standard baskets by up to 35%. This expanding architecture boosts sensitivity by up to 2dB, rewarding you with rich low-frequency character.
• Edge Driven Silk Dome Tweeters – Upgraded with luxury edge-driven silk dome 1/2" high-frequency tweeters rather than harsh, fatiguing metal materials. These premium drivers expand the high-frequency range beautifully, ensuring you capture every bit of natural detail tucked inside your favourite tunes.
• Vented Basket Frame Thermal Cooling – Features a super-rigid vented basket frame that acts almost like a cooling fan as the cone moves through its stroke. By wicking heat away from the sensitive voice coils and motor structure, it locks in lower distortion at high outputs and builds a longer-lasting speaker.
• Engineered for Easy Drop In Installation – Skip tedious dashboard modification or custom door panels. Boasting a highly compact physical chassis footprint tailored explicitly for tight factory spaces, these 6.5" coaxial drivers slide cleanly into place without requiring body panel cutting.
• Super Low Impedance Efficiency Loop – Employs a highly efficient 3.0-ohm low-impedance voice coil configuration. This architecture safely balances the thin factory electrical wire lines found in stock car frames, effortlessly squeezing out every available watt from factory radios or aftermarket amps.
• Competitively Tuned Signature Voice – Skip dull, mass-manufactured, off-the-shelf sound profiles. Every entry in the Primus line is meticulously balanced and carefully voiced by top engineers to preserve consistent tonal accuracy and verify you get the legendary transparent soul of the Infinity sound signature.

Ideal For

• Car audio hobbyists replacing flat, underpowered original factory 6.5-inch door or rear deck speakers with a high-fidelity coaxial alternative
• DIY car customisers seeking direct drop-in replacement coaxial speakers that fit standard compacts, trucks, or family sedans with zero modification
• Daily commuters seeking front-row vocal transparency, highly detailed horn texturing, and rich midrange depth over highway speed hum
• Value-conscious listeners looking to introduce reference-grade audiophile performance into their vehicles at a highly mainstream price point

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.

• 2 x Speakers
• 8 x Screws
• 8 x Speed clips
• 2 x 18AWG 200mm pigtail cables
• 1 x Foam gasket
• 2 x Brand stickers
• 1 x Owner's manual