Dayton Audio ND140-4 5-1/4" Aluminum Cone Midbass Driver

The Dayton Audio ND140-4 5-1/4" Aluminium Cone Midbass Driver delivers exceptional clarity and detail in the critical midbass range, making it an ideal choice for audiophiles seeking high-fidelity sound from a compact driver. Its lightweight yet rigid aluminium cone ensures fast transient response and minimal distortion, allowing for a natural and articulate presentation of vocals and instruments.

This versatile driver is perfectly suited for a wide range of applications, including car audio systems where space is at a premium, as well as home theatre setups and dedicated two-way or three-way loudspeaker designs. Its 4 ohm impedance makes it easy to integrate with most amplifiers, while the robust construction ensures reliable performance even in demanding environments.

Technically, the ND140-4 boasts a total Q factor (Qts) of 0.63, offering a balanced blend of control and efficiency for use in sealed or small ported enclosures. With a linear excursion (Xmax) of 4 mm and a displacement volume (Vd) of 34.6, it produces impressive output for its size. Sensitivity is rated at 88.4 dB (1m/2.83V), and the voice coil inductance is a low 0.79 mH, contributing to extended high-frequency response. The driver features a 3.7 ohm DC resistance and a cutout diameter of 120 mm, with a mounting depth of just 70.5 mm for easy installation.

Combining Dayton Audio’s engineering excellence with a compact footprint, the ND140-4 is a superb choice for anyone seeking accurate, detailed midbass reproduction in a versatile and affordable package.