Pioneer TS-T110 7/8" Hard Dome Tweeters

The Pioneer TS-T110 is a pair of compact 7/8-inch hard dome tweeters made to add dedicated high-frequency output to a car audio system. They are suited to replacing worn factory tweeters or supplementing a system that lacks upper-frequency detail. With a 4-ohm nominal impedance and 40-watt nominal power handling, they are designed for use with compatible car audio amplification.

These tweeters cover a 2,500 Hz to 30,000 Hz frequency range, focusing on the upper range of music where vocal detail, cymbals, strings, and ambient information are heard. Their 90 dB sensitivity rating supports clear output from modest power. The result is a focused high-frequency addition rather than a full-range speaker replacement.

Pioneer specifies a 22 mm PPTA hard dome tweeter design with a lightweight polyimide diaphragm and a uniquely shaped wave guide. This engineering is intended to support wide dispersion from a small mounting footprint. A heat-resistant voice coil, magnetic fluid, and strontium magnet are also listed in the original product specifications.

The TS-T110 includes high-pass filtering at 7,000 Hz with a 6 dB-per-octave slope to protect the tweeters from lower-frequency content. This makes the pair appropriate for use as dedicated high-frequency drivers in a properly configured speaker system. Match them with compatible front speakers and an audio source or amplifier that supports the system's impedance and power requirements.

Flexible flush- and surface-mount options help the TS-T110 fit common door-panel, dash-corner, and trim-panel locations. Its 2-inch mounting-hole requirement and 3/4-inch mounting depth should be checked against the selected installation point before purchase. Proper placement, secure mounting, and correct polarity are important for balanced stereo imaging and reliable operation.

Key Features

• 22 mm Hard Dome: Compact 7/8-inch tweeters handle dedicated high-frequency reproduction.
• 120W Maximum Power: Rated for 120 watts maximum and 40 watts nominal power.
• 2,500–30,000 Hz Response: Covers the upper-frequency range for added detail.
• 90 dB Sensitivity: Supports clear output with compatible low-to-moderate power.
• Built-In High-Pass Filtering: 7,000 Hz, 6 dB-per-octave filtering limits low-frequency content.
• Two Mounting Choices: Supports flush or surface mounting for installation flexibility.

Design & Installation

The TS-T110 uses a compact 22 mm PPTA hard dome design with a heat-resistant voice coil, magnetic fluid, and a 22 g strontium magnet. Pioneer also specifies a lightweight polyimide tweeter diaphragm and uniquely shaped wave guide. The assembly has a metal-mesh and heat-resistant-resin grille construction listed in the original specifications.

For flush installation, allow for a 2-inch mounting hole, 3/4-inch mounting depth, and approximately 3/8-inch protrusion. Surface mounting is also supported, with the original installation guide showing door-side and dashboard-corner placement examples. Use the specified high-pass-filtered connection arrangement, observe positive and negative polarity, and verify available panel depth before cutting or drilling.