• EXTREME SPL BULLET TWEETER OUTPUT: Kicker ST-Series KI-49ST4TW 1.5" horn-loaded bullet tweeter delivers ultra-high efficiency and aggressive volume for competition-style systems.
• CLEAR VOCALS THAT CUT THROUGH BASS: Voiced for strong presence and intelligibility, perfect for loud builds where vocals and highs need to stay sharp over heavy low-end.
• 50W RMS / 100W PEAK POWER HANDLING: Handles 15–50W RMS with 100W peak power capability, built to stay loud and consistent at high output levels.
• EASY INSTALL + FLEXIBLE MOUNTING OPTIONS: Includes front or rear mounting options, trim bezel choices, and spring-loaded terminals that accept 16 AWG wire for quick, clean wiring.
• COMPLETE KIT WITH CROSSOVER + SERVICEABLE DESIGN: Includes in-line 6dB high-pass crossover components (capacitor/resistor) and supports field-replaceable voice coil assemblies (ST3RK/ST4RK).

1.5" 50W RMS 4 Ohm Aluminum Dome Bullet Kicker ST-Series Tweeter KI-49ST4TW

This Listing Includes:

• (1) Kicker ST-Series 1.5" Aluminum Dome Bullet Tweeter KI-49ST4TW


• Mounting hardware and accessories (flanges, backing nut, screws)


• In-line crossover components (capacitor + resistor)

Get extreme output and razor-sharp clarity with the Kicker ST-Series KI-49ST4TW 1.5" bullet tweeter, built for competition-style SPL systems and loud, high-impact builds. This PA-style tweeter features an extremely efficient horn-loaded aluminum diaphragm that delivers powerful high frequencies with serious projection, perfect for cutting through heavy bass systems.

Kicker voices the ST-Series for clear vocals and strong presence, making it a go-to choice for high-output car audio setups. Install flexibility is built in too, with front or rear mount options, trim bezel choices, and spring-loaded terminals that accept up to 16 AWG wire for easy wiring. Plus, it includes an in-line 6dB high-pass crossover and supports a field-replaceable voice coil (ST3RK/ST4RK) for serviceability.

Specifications:

• Brand: Kicker


• Model: KI-49ST4TW


• Type: Bullet Tweeter (Single)


• Size: 1.5"


• Impedance: 4 Ohm


• RMS Power Handling: 15-50W RMS


• Peak Power Handling: 100W


• Frequency Response: 3kHz-20kHz


• Sensitivity: 108 dB (1W/1m)


• Crossover: In-line 6dB High-Pass

Dimensions:

• Mounting Depth: 1-1/4"


• Mounting Diameter: 2-7/8"


• Thread Length: 1-3/16"


• Thread Diameter: 1-7/8"