49ST4TW 1.5-Inch Pro Audio Bullet Tweeters, SVC 4-Ohm (Pair)

This pair of Kicker ST4TW bullet tweeters brings PA-style output to a car audio system, built around a horn-loaded aluminum diaphragm for high efficiency and extreme output at competition-level SPL. Unlike a typical dome tweeter, this single-unit bullet design is voiced for clear vocals that stay audible over high-output bass rather than getting buried by it. Each tweeter mounts with front or rear options plus trim bezel choices, so it fits a range of pillar, dash, or door locations. Spring-loaded terminals accept up to 16 AWG wire for a quick connection, and a built-in in-line 6dB crossover protects the tweeter from frequencies below its range without needing an external crossover network. Sensitivity is rated at 108dB, meaning these tweeters play loud with very little power, and recommended amp power runs from 15 to 50W RMS, so a modest amplifier channel provides enough power for them. The field-replaceable voice-coil assembly means a damaged tweeter can be rebuilt instead of replaced outright. This pair suits SPL-focused builds and anyone running high-power subwoofers who needs vocals and highs that stay clear and present at loud volume rather than disappearing into the bass.