Dayton Audio ND140-8 5-1/4" Aluminum Cone Midbass Driver

The Dayton Audio ND140-8 5-1/4" Aluminium Cone Midbass Driver delivers exceptional clarity and controlled low-end extension in a compact form factor. Engineered for audiophiles and DIY enthusiasts, this 8-ohm driver is ideal for use in high-fidelity two-way or three-way speaker systems, automotive audio upgrades, and custom sound installations where space is at a premium but performance cannot be compromised. Its lightweight aluminium cone ensures fast transient response, making it particularly suited for reproducing detailed midbass frequencies with precision.

Technically, the ND140-8 features a robust motor system with a copper voice coil wire and a total Q factor (Qts) of 0.68, offering a balanced blend of efficiency and damping for sealed or ported enclosures. The driver achieves a maximum linear excursion (Xmax) of 4 mm, with a displacement volume (Vd) of 34.6, enabling solid low-end output despite its modest size. Sensitivity is rated at 84.5 dB SPL at 1m/2.83V, while the DC resistance (Re) is 7.8 ohms. The aluminium cone is complemented by a durable surround and a 133.4 mm nominal diameter, with a cut-out diameter of 12 mm and four mounting holes for straightforward installation. With a depth of 70.5 mm, this driver fits neatly into compact designs, delivering authoritative midbass that enriches any listening experience.