Dayton Audio ND65-8 2-1/2" Aluminum Cone Full-Range Neo Driver 8 Ohm

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Parts ExpressSKU: K652 | UPC: 844632081477
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Dayton Audio's compact ND65-8 aluminum cone driver demonstrates the latest advances in high-excursion design processes. An efficient, low-distortion Neo-Balanced motor is combined with a rigid yet lightweight aluminum diaphragm, yielding impressive high-impact audio reproduction. Perfect for single point-source speaker applications, or combined in multiples and line arrays.


  • Rubber-edged aluminum alloy cone
  • Large excursion capability
  • Self-shielded Neo-Balanced motor structure
  • 4-layer underhung voice coil with polyimide former
  • High power handling

Product Specifications

Nominal Diameter: 2-1/2"

Power Handling (RMS): 15 Watts

Power Handling (max): 30 Watts

Impedance: 8 ohms

Frequency Response: 80 to 20,000 Hz

Sensitivity: 80.8 dB 2.83V/1m

Voice Coil Diameter: 0.75"

Thiele-Small Parameters

Resonant Frequency (Fs): 77.4 Hz

DC Resistance (Re): 7.4 ohms

Voice Coil Inductance (Le): 1.04 mH

Mechanical Q (Qms): 4.01

Electromagnetic Q (Qes): 0.46

Total Q (Qts): 0.41

Compliance Equivalent Volume (Vas): 0.02 ft.³

Mechanical Compliance of Suspension (Cms): 1.68 mm/N

BL Product (BL): 4.47 Tm

Diaphragm Mass Inc. Airload (Mms): 2.5g

Maximum Linear Excursion (Xmax): 3.5 mm

Surface Area of Cone (Sd): 15.6 cm²

Materials of Construction

Cone Material: Aluminum

Surround Material: Rubber

Voice Coil Former: Kapton® / Polyimide

Magnet Material: Neodymium

Mounting Information

Overall Outside Diameter: 2.5"

Baffle Cutout Diameter: 2.05"

Depth: 2"

# Mounting Holes: 4

Optimum Cabinet Size (determined using BassBox 6 Pro High Fidelity suggestion)

Sealed Volume: 0.02 ft.³

Sealed F3: 111 Hz

Vented Volume: 0.05 ft.³

Vented F3: 55 Hz

Dayton Audio ND65-8 2-1/2" Aluminum Cone Full-Range Neo Driver 8 Ohm

Brand: Dayton Audio

Model: ND65-8

Part Number: 290-206

UPC: 844632081477

Product Category: Midrange / Midbass Drivers & Full-Range Speakers

Unit of Measure: EA

Weight: 0.4 lbs.

California Prop 65

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