Audiotek ATW420S 3.5" Titanium Super Tweeter

The Audiotek ATW420S is a 3.5-inch car-audio super tweeter designed to add dedicated high-frequency output to a compatible sound system. It is intended for listeners whose existing speakers or subwoofers need more treble extension and definition. This listing is for one individual tweeter rather than a pair.

With a stated 3,000 Hz to 25,000 Hz frequency response, the ATW420S is built to reproduce upper-frequency information that can be less prominent in bass-focused systems. Its 105 dB sensitivity rating supports efficient output when matched with suitable amplification and crossover protection. The 8-ohm nominal impedance is suited to systems designed to accommodate that load.

The ATW420S uses a titanium dome tweeter design with a bullet-style center profile. This configuration is intended for focused high-frequency playback in custom car-audio installations. A stated maximum-power rating of 600 watts identifies its published peak handling specification.

A die-cast aluminum frame gives the tweeter a rigid mounting structure for automotive use. The compact 3.5-inch format can be useful in custom panels, speaker pods, or other locations with adequate clearance. Its published mounting depth is 2.25 inches, so installation space should be measured before cutting or mounting.

A crossover capacitor is included to support high-frequency-only use and help keep low-frequency content away from the tweeter. The ATW420S is best used as part of a complete system with appropriately selected midrange speakers, amplification, and wiring. Confirm amplifier compatibility, crossover strategy, polarity, and mounting requirements before installation.

Key Features

• 3.5-Inch Super Tweeter: Adds dedicated upper-frequency coverage to compatible vehicle audio systems.
• Titanium Dome Design: Supports detailed high-frequency reproduction in a compact format.
• 600W Maximum Rating: Provides the published maximum power-handling reference for system matching.
• 105 dB Sensitivity: Helps produce strong output with appropriate system power.
• 3,000–25,000 Hz Response: Covers the stated high-frequency operating range.
• Included Crossover Capacitor: Supports high-pass connection and tweeter protection.

Design & Installation

The ATW420S combines a titanium dome design with a die-cast aluminum frame. Its bullet-style super-tweeter layout is made for dedicated treble reproduction rather than full-range speaker duty. The aluminum frame provides a robust foundation for mounting in a vehicle audio installation.

Allow at least 2.25 inches of mounting depth and verify the available panel, pod, or enclosure space before installation. Use the included crossover capacitor or another properly selected high-pass crossover, and connect the tweeter only to an amplifier or crossover channel compatible with its 8-ohm impedance. For balanced results, pair it with suitable midrange speakers and set output levels carefully.