Peerless OC25SC65-04 1" Textile Dome Tweeter - 4 ohm

Peerless (Vifa) OC25SC65-04 1" Soft Textile Dome Tweeter for Custom Mounting

This OC family tweeter features a 25 mm 4 ohm voice coil, a damped fabric dome for smooth frequency response performance, and ferrofluid in the gap of the neodymium magnet motor, providing enhanced cooling of the voice coil. The tweeter comes with a twist-lock mating feature, to allow for easy installation into custom faceplates.

With a resonance frequency of 1380Hz, you should use a crossover frequency above 3kHz and at least 12dB.