ND65-4 2-1/2" Aluminum Cone Full-Range Driver 4 Ohm
Rubber-edged aluminum alloy cone
$52.50
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Dayton Audio's compact ND65-4 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.
OPTIMUM CABINET SIZE *
Sealed Volume 0.05 ft.³
Sealed F3 102 Hz
Vented Volume 0.08 ft.³
Vented F3 53 Hz
- Enclosure volume/F3s based on BassBox "optimum" calculations
(844632081460)
• 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
• Large excursion capability
• Self-shielded Neo-Balanced motor structure
• 4-layer underhung voice coil with polyimide former
• High power handling
| Speaker Series | ND Series |
|---|---|
| Model Number | ND65-4 |
| Color | Black |
| Unit of Measure | Each |
| UPC | 844632081460 |
| Warranty - Parts | 5 Years |
| Warranty - Labor | 5 Years |
| Product Shipping Weight (lbs.) | 0.4000 |
| 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 | 83 dB @ 2.83V/1m |
| Frequency Response | 85 - 20,000 Hz |
| Voice Coil Diameter | 19 mm |
| Magnet Weight | -- |
| DC Resistance (Re) | 3.5 ohms |
| Voice Coil Inductance (Le) | 0.44 mH @1 kHz |
| Resonant Frequency (Fs) | 89.5 Hz |
| Mechanical Q (Qms) | 5.56 |
| Electromagnetic Q (Qes) | 0.68 |
| Total Q (Qts) | 0.61 |
| Diaphragm Mass Inc. Airload (Mms) | 2.5g |
| Moving Mass Of Diaphragm (Mmd) | -- |
| Mechanical Compliance of Suspension (Cms) | 1.26 mm/N |
| Surface Area Of Cone (Sd) | 15.6 cm² |
| Volume of Displacement (Vd) | 5.4 cm³ |
| BL Product (BL) | 2.68 Tm |
| Compliance Equivalent Volume (Vas) | 0.53 liters |
| Maximum Linear Excursion (Xmax) | 3.5 mm |
| Driver's Mechanical Losses (Rms) | -- |
| Cone / Diaphragm Material | Black Anodized Aluminum Cone |
| Entry / Exit Diameter | -- |
| Surround Material | Rubber |
| Voice Coil Wire Material | Copper |
| Voice Coil Former | Kapton® / Polyimide |
| Basket/Frame Material | Steel |
| Magnet Material | Neodymium |
| Overall Outside Diameter | 64 mm |
| Overall Depth | 48 mm |
| Baffle Cutout Diameter | 52 mm |
| # Mounting Holes | 4 |
| Mounting Hole Diameter | -- |
| Bolt Circle Diameter | -- |
| Product Weight | -- |
| SKU | 844632081460 |
| Model # | ND65-4 |
| Barcode # | 844632081460 |
| Brand | Dayton Audio |
| Shipping Weight | 0.1810kg |
| Shipping Width | 0.095m |
| Shipping Height | 0.070m |
| Shipping Length | 0.095m |
| Shipping Cubic | 0.000634000m3 |
| Assembled Length | 0.095m |
| Assembled Height | 0.070m |
| Assembled Width | 0.095m |
Dayton Audio ND65-4 2-1/2" Full Range Driver
By: Michael Hayes on 22 September 2016After reading the information on the web site I had high hopes for this tiny little speaker driver. They were exceeded. The application is a Bluetooth enabled active speaker and the results are extraordinary. It really does perform better than many speakers twice its size.
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