Alpha 403F

Powerful Plus One™ woofer cone: The Alpha 403F's injection-molded polypropylene woofer cone provides superior rigidity and sensitivity. It has a larger surface area than comparable cones, which moves more air to produce deeper bass and richer midrange frequencies. Balanced PEI dome tweeter: The integrated tweeter features a Polyetherimide (PEI) balanced dome. This design delivers crisp, high-frequency sound without harshness or distortion, ensuring vocals, strings, and hi-hats are clear and transparent. Optimized for easy installation: The newly engineered speaker basket is designed to fit into most factory speaker locations. This universal design, along with a mounting kit, makes installation straightforward for both beginners and experienced installers. Robust construction: The Alpha series speakers undergo rigorous reliability testing, including environmental stress tests involving freezing, baking, and continuous high-power operation. This ensures stable performance and durability for long-term use. Value-engineered performance: As part of the Alpha series, the 403F is designed to deliver Infinity's signature audio quality at a budget-friendly price point