INFINITY Alpha 603M 6.5″ Coaxial 3-Way Speaker
Product Description:
The Infinity Alpha 603M is a 6½‑inch (165 mm) coaxial 3‑way car speaker with an included grille, engineered to deliver Infinity’s signature balanced, clear sound at an affordable price. It features injection‑molded polypropylene woofers paired with a PEI balanced‑dome tweeter, offering a rich low‑mid foundation and detailed high frequencies. Designed and individually voice‑tuned by Harman engineers, it ensures accurate, musical performance with a refined visual ID and strong build quality.
Product Features:
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Injection‑molded polypropylene woofer cone provides stiffness and sensitivity for deep, controlled mid‑bass and midrange output.
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PEI balanced‑dome tweeter with edge‑driven silk membrane, ensuring crisp, transparent highs without harshness.
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Three‑way coaxial design integrates woofer, midrange, and tweeter into a single unit for full‑range sound from one compact assembly.
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Rigorously reliability‑tested: Each speaker undergoes environmental and stress testing (freeze, bake, vibration, UV exposure, long‑term full‑power) to guarantee durability and consistency.
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Elegant new Infinity ID design, blending a modern aesthetic with functional engineering for installation in various vehicle types.
Product Specifications:
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Speaker Size: 6.5″ (165 mm) three‑way coaxial with grille included
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Power Handling: 60 W RMS, up to 480 W Peak power
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Sensitivity: 90 dB at 2.83 V/1 m
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Frequency Response: 55 Hz to 20 kHz
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Nominal Impedance: 4 Ω
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