{"product_id":"infinity-primus-603f-6-5-coaxial-speakers","title":"Infinity Primus 603F 6.5\" Coaxial Speakers","description":"\u003cdiv\u003e\n\u003cp\u003eInfinity Primus 603F 6.5\" 2-way coaxial car speakers deliver smooth vocals, crisp cymbals, and rich bass in a compact package built to fit a wide range of vehicles. Featuring Infinity's cooling vented basket frame, they maintain output with less wear over time.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003e6-1\/2\" 2-way coaxial design\u003c\/b\u003e: Integrates woofer and tweeter in a single unit for a compact upgrade that fits many factory openings and aftermarket installations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePlus One+ polypropylene woofer cone with hi-roll rubber surround\u003c\/b\u003e: Increases cone surface for stronger bass response and extended excursion while preserving durability and control.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003e1\/2\" edge-driven silk dome tweeter\u003c\/b\u003e: Delivers clean high-frequency detail with low distortion at high listening levels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003e3-ohm impedance\u003c\/b\u003e: Lower impedance helps draw more current from your head unit or amplifier and is compatible with virtually all factory or aftermarket car stereos.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePower handling: 50W RMS \/ 150W peak\u003c\/b\u003e: Indicates safe continuous power and dynamic headroom for typical head units or amps.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eFrequency response: 55 Hz – 20 kHz\u003c\/b\u003e: Covers deep bass to sparkling highs for a full-range listening window.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSensitivity: 92 dB @ 2.83V\u003c\/b\u003e: How efficiently the speaker converts power to audible sound, influencing perceived loudness with given input.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCooling vented basket frame\u003c\/b\u003e: Aims to maximize sustained output and reduce wear during extended playback.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eInfinity's true 4-ohm architecture\u003c\/b\u003e: Uses a low-impedance voice coil to safely draw extra power from factory radios, aftermarket stereos, or an external amplifier for stronger, clearer sound.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eGrilles not included\u003c\/b\u003e: Ships without grilles, giving installation flexibility in various vehicle interiors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWarranty\u003c\/b\u003e: 1-year warranty.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWhat's in the box\u003c\/b\u003e: Infinity Primus 603F owner's manual; Two 2-way speakers; Two 8\" lengths of speaker wire (each with female quick-slides on one end and tinned wire on the other); Eight 1\" screws; 8 speed clips; 2 adhesive-backed foam gaskets; Template and specs on box.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIn a typical car audio build, the Primus 603F upgrades from factory speakers to deliver clearer vocal articulation, more defined high end, and stronger bass without occupying excessive space. The Plus One+ woofer and edge-driven tweeter work together for a coherent soundstage, while the 3-ohm impedance and true 4-ohm architecture support efficient power delivery from a range of source units, including amplifiers for additional headroom. The cooling basket frame helps maintain performance during longer sessions, contributing to reliable real-world usability and longevity.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Infinity","offers":[{"title":"Default Title","offer_id":49850259734756,"sku":null,"price":79.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0842\/2522\/9028\/files\/g108P603F-o_other1.jpg?v=1789262116","url":"https:\/\/www.12voltoutlet.com\/products\/infinity-primus-603f-6-5-coaxial-speakers","provider":"12 Volt Outlet","version":"1.0","type":"link"}