The Infinity Reference REF-5030cx is a 5.25" two-way component speaker kit designed for enthusiasts who want a proper soundstage, not merely louder audio. By separating woofer and tweeter, it enables precise placement for a front-stage image that feels like the music is happening in front of you. Woofer and tweeter separation: 5.25" Plus One+ polypropylene woofer cone with hi-roll rubber surround delivers more air than a standard 5.25" driver, providing stronger midbass from a compact footprint. Tweeter: 3/4" textile edge-driven dome tweeter for smooth highs and fatigue-free listening. Crossovers: Passive crossovers included to handle frequency division cleanly—no active crossover or DSP required. Impedance technology: True Four Ohm Impedance technology (3-ohm woofer + wire = 4-ohm load) maintains compatibility with factory and aftermarket head units. Power handling: Handles up to 60W RMS (180W peak) for clean, controlled output with headroom. Frequency response: 57–21,000 Hz provides extended highs and solid low-end within a compact speaker package. Sensitivity: 92 dB @ 2.83V for efficient playback, delivering more volume from less power. Warranty: 1 year. Contents: Two 5.25" woofers, Two 3/4" tweeters with mounting hardware, Two passive crossovers, Mounting hardware, Instruction manual. In a real car build, mount the tweeters at ear level in the A-pillars or dash and run the woofers in the doors to achieve a front-stage that feels like the music is in front of you. The passive crossovers simplify installation, and the True Four Ohm design helps maintain compatibility with a wide range of head units. With 60W RMS per pair and a 57–21k Hz range, the REF-5030cx delivers clear midbass and extended highs without requiring DSP or active processing.