Dayton Audio ND65-4 2-1/2" Aluminum Cone Full-Range Driver

The Dayton Audio ND65-4 is a compact 2-1/2" full-range driver that delivers remarkably clear and detailed sound, making it an excellent choice for space-constrained audio projects. Its aluminium cone and 4-ohm impedance are ideally suited for small satellite speakers, portable Bluetooth enclosures, or custom desktop monitors where a wide frequency response is desired without the need for a separate tweeter. This driver also excels in multi-channel home theatre systems or as a replacement driver in compact consumer electronics.

Engineered with a lightweight aluminium cone and a copper voice coil, the ND65-4 achieves a sensitivity of 83 dB SPL at 2.83V/1m and a total Q factor of 0.61, ensuring balanced performance in small sealed or ported enclosures. The linear excursion (Xmax) of 3.5 mm and a displacement volume (Vd) of 5.4 provide surprising bass extension for its size. With a nominal impedance of 4 ohms, a DC resistance of 3.5 ohms, and a voice coil inductance of 0.44 mH, this driver is easy to integrate into low-power amplifier designs. The cut-out diameter of 52 mm and mounting depth of 48 mm allow for straightforward installation in compact cabinets.

Combining precision engineering with versatile application, the ND65-4 offers a reliable and high-quality solution for demanding audio projects.