Skar Audio VX4-ST 4" Titanium Bullet Super Tweeter

The Skar Audio VX4-ST is a 4-inch high-compression titanium bullet super tweeter built to deliver clear, extended highs with up to 600 watts peak power for automotive and custom audio systems.

Engineered as a focused high-frequency driver, the VX4-ST pairs a compact, high-temperature Kapton voice coil with a titanium bullet diaphragm and an included in-line capacitor crossover. It’s sold individually so you can install a single tweeter for a custom front-stage upgrade or match pairs for stereo use. The driver’s tight dispersion and high sensitivity make it especially useful where clarity and presence are needed without adding large enclosures.

How will the VX4-ST improve the top end of my car audio system?

The VX4-ST is designed to reproduce upper midrange and treble with improved definition and presence. Its titanium bullet diaphragm provides quick transient response, while the 1.75" Kapton voice coil tolerates heat during demanding use.

• Frequency response from 2.5 kHz to 20 kHz for crisp highs and detailed harmonics
• 102 dB sensitivity for efficient output with moderate power
• High-compression design enhances on-axis clarity and vocal presence

What are the power and reliability specs I should know?

The tweeter handles peak bursts up to 600 watts and continuous RMS power at 300 watts, giving it headroom for dynamic passages. Thermal resilience comes from the Kapton voice coil and compact construction that resists overheating under real-world listening conditions.

• 600W max power for transient peaks
• 300W RMS for sustained performance
• 4-ohm impedance compatible with many amplifiers and crossovers

Does it include crossover protection and how is it wired?

Yes—an in-line capacitor crossover is included and factory-connected to the positive terminal, providing basic high-pass filtering to protect the tweeter from low-frequency energy. This simplifies installation and helps integrate the tweeter with midrange drivers or full-range sources.

• Included in-line capacitor crossover pre-wired to the positive terminal
• Protection against damaging low frequencies when paired with midrange/woofers
• Easy series wiring for straightforward installation

How will the VX4-ST fit into my installation and sound goals?

The compact 4-inch form factor and bullet-style profile allow flexible mounting locations like pillars, dash pods, or custom enclosures. Whether you’re seeking sharper vocals, clearer cymbals, or a more revealing soundstage, the VX4-ST brings top-end articulation without demanding large physical space.

• Sold individually to support custom stereo or multi-driver setups
• Small footprint fits pods, dash mounts, or custom brackets
• Titanium bullet design provides focused dispersion for on-axis clarity

Who is this for: The Skar Audio VX4-ST is aimed at installers and enthusiasts upgrading factory systems or building compact, high-output front stages. Choose this tweeter if you want a compact, high-sensitivity driver that adds detailed highs and presence while tolerating demanding power levels. It’s ideal for custom car audio builds where space is limited but high-frequency performance cannot be compromised.