Dayton Audio ND90-8 3-1/2" Aluminum Cone Full-Range Driver

The Dayton Audio ND90-8 is a 3-1/2-inch full-range driver that brings exceptional clarity and detail to compact audio designs. Engineered with a lightweight aluminium cone, this driver delivers a precise and articulate response, making it an ideal choice for multimedia speakers, small bookshelf loudspeakers, or custom portable audio projects where space is at a premium but sound quality cannot be compromised.

Technically, the ND90-8 features an 8-ohm impedance with a DC resistance of 7.5 ohms, ensuring compatibility with a wide range of amplifiers. Its neodymium motor system drives a copper voice coil, achieving a sensitivity of 81.4 dB SPL at 2.83V and a total Q factor of 0.65, which balances transient response and low-frequency extension. With a maximum linear excursion of 4 mm and a displacement volume of 12.5, this driver can produce surprising bass output for its size. The aluminium cone and robust chassis contribute to low distortion and a smooth frequency response, while the 85 mm cutout diameter and four mounting holes simplify integration into custom enclosures.

Whether you are upgrading a desktop speaker system or building a high-fidelity miniature loudspeaker, the ND90-8 offers a refined, full-range performance that belies its compact dimensions. Its combination of advanced materials and thoughtful engineering makes it a versatile and reliable choice for discerning audio enthusiasts.