ND64-4 2-1/2" Aluminum Magnesium Cone Full-Range Driver 4 Ohm

Rubber-edged aluminum magnesium alloy cone

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Dayton Audio’s ND64-4 is truly a full-range, low distortion driver and capable of over 6 mm of peak-to-peak excursion.

Dayton Audio’s ND64-4 is truly a full-range driver and capable of over 6 mm of peak-to-peak excursion. It features a dual Neo-Balanced magnet structure, a 3/4" CCAW voice coil, and a copper sleeve to minimize distortion. An efficient, low-distortion Neo-Balanced motor is combined with a rigid yet lightweight aluminum magnesium diaphragm, yielding impressive high-impact audio reproduction. Perfect for single point-source speaker applications, or combined in multiples and line arrays.

Sealed Volume 0.002 ft.³
Sealed F3 265.5 Hz
Vented Volume 0.005 ft.³
Vented F3 117.3 Hz
* Enclosure volume/F3s based on BassBox "optimum" calculations


• Rubber-edged aluminum magnesium alloy cone
• Dual neodymium motor structure
• 4-layer voice coil with polyimide former
• Copper sleeve to minimize distortion
• High power handling

Speaker Series ND Series
Model Number ND64-4
Color Black
Unit of Measure Each
UPC 848791002809
Warranty - Parts 5 Years
Warranty - Labor 5 Years
Product Shipping Weight (lbs.) 1.0000
Speaker Type Full-Range
Nominal Diameter 2.50"
Power Handling (RMS) 15 watts
Power Handling (max) 30 watts
Continuous Program Power --
Impedance 4 ohms
Sensitivity 85.2 dB @ 2.83V/1m
Frequency Response 100 - 20,000 Hz
Voice Coil Diameter 19 mm
Magnet Weight --
DC Resistance (Re) 3.7 ohms
Voice Coil Inductance (Le) 0.37 mH
Resonant Frequency (Fs) 103.0 Hz
Mechanical Q (Qms) 4.36
Electromagnetic Q (Qes) 0.36
Total Q (Qts) 0.33
Diaphragm Mass Inc. Airload (Mms) 2.56g
Moving Mass Of Diaphragm (Mmd) --
Mechanical Compliance of Suspension (Cms) 0.93 mm/N
Surface Area Of Cone (Sd) 15.6 cm²
Volume of Displacement (Vd) 29.64 cm³
BL Product (BL) 4.13 Tm
Compliance Equivalent Volume (Vas) 0.42 liters
Maximum Linear Excursion (Xmax) 1.9 mm
Driver's Mechanical Losses (Rms) --
Cone / Diaphragm Material Black Anodized Aluminum Cone
Entry / Exit Diameter --
Surround Material Rubber
Voice Coil Wire Material CCA
Voice Coil Former Polyimide
Basket/Frame Material Stamped Steel
Magnet Material Neodymium
Overall Outside Diameter 64 mm
Overall Depth 39 mm
Baffle Cutout Diameter 53 mm
# Mounting Holes 4
Mounting Hole Diameter --
Bolt Circle Diameter --
Product Weight --
SKU 848791002809
Model # ND64-4
Barcode # 848791002809
Brand Dayton Audio
Shipping Weight 0.1570kg
Shipping Width 0.076m
Shipping Height 0.051m
Shipping Length 0.076m
Shipping Cubic 0.000295000m3

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