DS18 TX1S Tweeter X1 – 1.38" PEI Dome, Ferrite, 200W Max, 4-Ohm (Set of 2)

Overview

The DS18 TX1S X1 tweeters bring refined high-end detail to your car audio without taking up a lot of space. Built around a compact 1.38-inch PEI dome and a robust ferrite magnet, they are designed to stay cool while delivering crisp treble across a wide listening range. With a 200 Watts maximum and 50 Watts RMS handling per pair, this set is designed to complement a variety of factory and aftermarket systems, adding clarity to vocals, cymbals, and air around the highs.

Power, efficiency, and frequency range

Engineered for efficiency, these tweeters are low-impedance at 4 ohms, which helps you get the most from the head unit or amp you already own. The frequency response spans from 2K to 20K Hz, and the 88 dB sensitivity suggests solid performance even with moderate amplification. This combination aims to reveal more of the top-end detail in everyday tracks, from bright pop to intricate instrumental sections.

• 200 Watts max, 50 Watts RMS (per set)
• Low-impedance 4-ohm design for efficient power use
• Frequency response: 2K–20K Hz; 88 dB sensitivity

Versatile mounting options

The included mounting kit supports angle, flush, and surface mounting, making installation in a wide range of vehicles feasible. With a mounting depth of 0.71 inches and a cutout diameter of 2 inches, you can place the X1S tweeters in dashboards, doors, or panels where space is tight, while maintaining a clean appearance.

• Angle, flush, and surface mounting options
• Mounting depth: 0.71 in; Cutout diameter: 2 in
• Kit included in the box for quick setup

Build quality and real-world use

The 1.38-inch PEI dome combines lightweight rigidity with heat tolerance, while the ferrite magnet is built to handle elevated temperatures. The design pairs with speaker wire that includes built-in bass blockers to help reduce low-end leakage into the highs, contributing to a clearer top end in daily driving settings.

In practice, the TX1S X1 tweeters can help enhance the perceived air and brightness of high frequencies in a wide range of music styles. The result is a more articulate treble that supports clearer vocals and more precise cymbal detail, especially when paired with a compatible cross-over or midrange drivers.

What you get and installation notes

This is a true set of two tweeters with a complete mounting kit, designed for straightforward installs in many vehicles. Plan for a clean install by choosing a mounting location that maintains proper phase and imaging relative to your other speakers. As with any car audio upgrade, results depend on your overall system, enclosure, and head-unit or amplifier power.

• Two DS18 TX1S X1 tweeters included
• Mounting kit with angle, flush, and surface options
• Wiring with built-in bass blockers
• Compact 0.71 in mounting depth and 2 in cutout