Dayton Audio ND25FA-4 1" Soft Dome Neodymium Tweeter

The Dayton Audio ND25FA-4 Dome Tweeter is a precision-engineered soft dome tweeter designed to deliver clear, detailed high-frequency reproduction in a wide range of audio projects. Its 25.4mm diaphragm and 90 dB SPL sensitivity at 2.83V/1m ensure effortless integration into both new builds and upgrades, making it an ideal choice for hi-fi loudspeakers, studio monitors, and custom automotive audio systems. Whether you are a seasoned DIY enthusiast or a professional installer, this tweeter brings a refined, airy top end that complements any two-way or multi-way design.

At the heart of the ND25FA-4 lies a 25.4mm soft dome diaphragm, chosen for its smooth, natural sound and low distortion. The tweeter’s impedance is rated at 4 ohms, with a DC resistance of 3.2 ohms, and its resonance frequency sits at 135 Hz, allowing for flexible crossover design. Key electrical parameters include a voice coil inductance of 0.48 mH, a Qes of 2.61, Qms of 3.87, and a total Qts of 1.56, which together ensure controlled, accurate performance. The unit measures 66 mm in diameter with a cutout of Ø 45 mm and a depth of 25.4 mm, making it compact enough for tight enclosures while still delivering impressive output.

This tweeter is part of Dayton Audio’s respected ND Series, known for reliability and sonic excellence. With its robust construction and carefully tuned parameters, the ND25FA-4 offers a cost-effective solution for achieving pristine high frequencies in any audio project.