STX Audio STX-600TW 3.71" Super Tweeter

The STX Audio STX-600TW is a 3.71-inch super tweeter designed to add dedicated high-frequency output to a car audio system. It is intended for listeners building systems that need clearer treble presence alongside larger midrange speakers, subwoofers, or high-output bass sections. Its 4-ohm nominal impedance supports use with compatible car-audio amplification.

This model is built for the upper-frequency range, with a published frequency response of 2 kHz to 20 kHz. That makes it suited to reproducing details such as cymbals, vocal articulation, and other upper-register information that may be less prominent in bass-focused systems. The listed 105 dB sensitivity indicates efficient output relative to the power applied.

A titanium diaphragm is used for the moving high-frequency element, while the voice coil is specified as CCAW, or copper-clad aluminum wire. These materials are identified in the published product information and are central to the STX-600TW's driver construction. The speaker is rated at up to 1000 watts maximum power handling.

The compact super-tweeter format makes the STX-600TW an option for custom car-audio installations where a dedicated treble driver is desired without using a full-size coaxial speaker. It can complement a system with separate mids and bass drivers by concentrating on the published 2 kHz to 20 kHz range. Proper system tuning remains important because this is a specialized high-frequency speaker rather than a full-range driver.

For an upgrade path, the STX-600TW is most appropriate in a properly designed multi-speaker system using compatible amplification and filtering. Its 4-ohm load should be matched to an amplifier channel that supports that impedance. Verify enclosure, mounting, crossover, and wiring requirements with the rest of the system before installation.

Key Features

• 3.71-Inch Super Tweeter: Provides a compact dedicated driver for high-frequency reproduction.
• 4-Ohm Nominal Impedance: Works with compatible 4-ohm car-audio amplifier channels.
• 1000W Maximum Rating: Published maximum power-handling specification for system matching.
• 105 dB Sensitivity: Supports efficient high-frequency output with compatible amplification.
• Titanium Diaphragm: Uses a titanium diaphragm for the high-frequency driver assembly.
• CCAW Voice Coil: Uses copper-clad aluminum wire in the voice-coil construction.

Design & Installation

The STX-600TW combines a titanium diaphragm with a CCAW voice coil in a compact 3.71-inch super-tweeter format. Published product information lists a compact magnet size of 1.30 x 0.39 x 0.28 inches. Its design is focused on dedicated high-frequency reproduction rather than full-range playback.

Mount the tweeters securely in a location that supports their 3.71-inch form factor and directs high-frequency sound toward the listening area. Use a compatible 4-ohm amplifier channel and an appropriate crossover or high-pass filter so the driver is used within its published 2 kHz to 20 kHz frequency range. Set amplifier gain conservatively and follow the instructions for the amplifier and any external crossover used in the installation.