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Dayton Audio ND90-8 Speaker Driver Full-Range
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Dayton Audio ND90-8 Speaker Driver Full-Range Aluminum 20W 8Ohm 81dB 80Hz-15kHz Ø8.9cm
Robustness, easy to install and high sound performance
Dayton Audio's compact aluminum cone drivers demonstrate 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 applications, or combined in multiples and line arrays.
Highlight :
- Direct replacement for Aura NS3
- Rubber-edged anodized aluminum alloy cone
- Large excursion capability—4 mm Xmax, 20 mm peak
- Full-range 80 Hz to 15 kHz performance
- 20 watts RMS power handling
Technical characteristics
| Specifications | |
|---|---|
| Type | Full-Range |
| Color | Black |
| Cone / Diaphragm Material | Aluminum |
| Nominal diameter | 8.9 cm |
| Impedance | 8 ohms |
| Resistance | 7.5 ohms |
| Voice coil inductance (Le) | 1.08 mH @ 1 kHz |
| Resonant frequency (Fs) | 70.7 Hz |
| Mechanical quality factor (Qms) | 4.71 |
| Electromagnetic quality factor (Qes) | 0.75 |
| Total quality factor (Qts) | 0.65 |
| Diaphragm mass inc. airload (Mms) | 4.2g |
| Mechanical compliance of suspension (Cms) | 1.22 mm/N |
| Surface area of cone (Sd) | 31.2 cm² |
| Volume of displacement (Vd) | 12.5 cm³ |
| Force factor (BL) | 4.3 Tm |
| Compliance equivalent volume (Vas) | 1.77 Litres |
| Maximum linear excursion (Xmax) | 4 mm |
| Voice coil diameter | 19 mm |
| SPL | 81.4 dB @ 2.83V/1m |
| Power handling | RMS : 20W Max : 40W |
| Usable Frequency Range | 80 - 15000Hz |
| Speaker Power (W RMS) | 20.0 |
| Speaker Type | Full range |
| Impedance (Ω) | 8 |
| Loudspeaker diameter (mm) | 89.0 |
| Diaphragm type | Aluminium |
| Efficiency / Sensitivity (dB) | 81.0 |
| Max Linear Excursion (Xmax) (mm) | 4.0 |
| Lowest frequency (Hz) | 80 |
| Highest frequency (Hz) | 15000 |
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