Dayton Audio ND91-4 3-1/2" Aluminum Cone Full-Range Driver 4 Ohm
Dayton Audio's ND91 aluminum cone full-range drivers are the latest addition to the acclaimed ND Series high output/low distortion neodymium transducers. By increasing the original ND90's voice coil diameter from 3/4" to 1" and adding a copper alloy shorting ring, the ND91-4 features even lower distortion and delivers better bass impact and dynamic range—with peak Xmax up to 25 mm!
This high-BL version further exploits the low distortion characteristics of the Neo-Balanced motor's optimized magnetic field, making the ND91 drivers an excellent choice for full-range point-source speaker enclosures, as well as extremely accurate, high resolution line arrays.
| PRODUCT SPECIFICATIONS |
| Power Handling (RMS) |
30 Watts |
| Power Handling (max) |
60 Watts |
| Impedance |
4 ohms |
| Frequency Response |
65 TO 17,000 Hz |
| Sensitivity |
81.3 dB 1W/1m |
| Voice Coil Diameter |
1" |
| THIELE-SMALL PARAMETERS |
| Resonant Frequency (Fs) |
63.4 Hz |
| DC Resistance (Re) |
4.1 ohms |
| Voice Coil Inductance (Le) |
0.74 mH |
| Mechanical Q (Qms) |
3.06 |
| Electromagnetic Q (Qes) |
0.44 |
| Total Q (Qts) |
0.38 |
| Compliance Equivalent Volume (Vas) |
0.05 ft.³ |
| Mechanical Compliance of Suspension (Cms) |
1.13 mm/N |
| BL Product (BL) |
4.6 Tm |
| Diaphragm Mass Inc. Airload (Mms) |
5.6g |
| Maximum Linear Excursion (Xmax) |
4.6 mm |
| Surface Area of Cone (Sd) |
30.4 cm² |
| MATERIALS OF CONSTRUCTION |
| Cone Material |
Aluminum |
| Surround Material |
Rubber |
| Voice Coil Wire Material |
Aluminum |
| Voice Coil Former |
Kapton® / Polyimide |
| Basket / Frame Material |
Steel |
| Magnet Material |
Ferrite |
| MOUNTING INFORMATION |
| Overall Outside Diameter |
3.35" |
| Baffle Cutout Diameter |
3.01" |
| Depth |
2.22" |
| # Mounting Holes |
4 |
| OPTIMUM CABINET SIZE * |
| Sealed Volume |
0.01 ft.³ |
| Sealed F3 |
132 Hz |
| Vented Volume |
0.03 ft.³ |
| Vented F3 |
73 Hz |
| * Enclosure volume/F3s based on BassBox "optimum" calculations |
- |
| Dayton Audio ND91-4 3-1/2" Aluminum Cone Full-Range Driver 4 |
| Brand |
Dayton Audio |
| Model |
ND91-4 |
| Part Number |
290-224 |
| UPC |
844632090448 |
| Product Category |
Woofers |
| Product Rating |
(2 Reviews)
|
| Unit of Measure |
ea |
| Weight |
0.7000 |
