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DAYTON AUDIO ND140-8 Speaker Driver Midbass / Midrange Aluminium 40W 8 Ohm 84.5dB 54Hz - 8000Hz Ø13.3cm
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Dayton Audio ND140-8
Speaker Driver Midbass / Midrange Aluminium 40W 8 Ohm 84.5dB 54Hz - 8000Hz Ø 13.3cm
The Dayton Audio ND140-8 is a low/midrange driver capable of delivering 40W RMS (80W Max) at 8 Ohm. It reproduces frequencies between 54Hz and 8000Hz. It has a robust Aluminium diaphragm with rubber suspensions, ensuring a large 4mm travel, and its symmetrical Neodymium engine ensures very low distortion for optimum reproduction quality.
Technical characteristics
| General characteristics | |
|---|---|
| Speaker type | Midbass / Midrange |
| Nominal diameter | 13.3cm (5.25") |
| Power handling | RMS : 40W Max : 80W |
| Impedance | 8 Ohm |
| Sensitivity | 84.5dB @ 2.83/1m |
| Frequency response | 54Hz - 8000Hz |
| Voice coil diameter | 25mm |
| Max linear excursion (Xmax) | 4mm |
| Cone material | Anodized Aluminium |
| Surround material | Rubber |
| Voice coil wire material | Copper |
| Voice coil former | Kapton / Polyimide |
| Basket material | Steel |
| Magnet material | Neodymium |
| Overall diametet | 138mm |
| Total depth | 70.5mm |
| Drilling diameter | 120mm |
| Number of fixation holes | 4 |
| Measurements | |
|---|---|
| DC Resistance (Re) | 7.8 Ohm |
| Voice coil inductance (Le) | 1.44mH @ 1kHz |
| Resonant frequency (Fs) | 56.5Hz |
| Mechanical Q (Qms) | 5.01 |
| Electromagnetic Q (Qes) | 0.79 |
| Total Q (Qts) | 0.68 |
| Diaphragm Mass Inc. Airload (Mms) | 10.4g |
| Mechanical compliance of suspension (Cms) | 0.76 mm/N |
| Surface area of cone (Sd) | 86.6cm² |
| Volume of displacement (Vd) | 34.6cm² |
| BL Product (Bl) | 6.05Tm |
| Compliance equivalent volume (Vas) | 7.74 litres |
| Optimum cabinet size (Based on BassBox Calculations) | |
|---|---|
| Sealed volume | 0.36ft³ |
| Sealed F3 | 75Hz |
| Vented Volume | 0.84ft³ |
| Vented F3 | 37Hz |
| Speaker Power (W RMS) | 80.0 |
| Speaker Type | Midbass |
| Speaker Type | Midrange |
| Impedance (Ω) | 8 |
| Loudspeaker diameter (mm) | 133.0 |
| Diaphragm type | Aluminium |
| Efficiency / Sensitivity (dB) | 84.0 |
| Max Linear Excursion (Xmax) (mm) | 4.0 |
| Lowest frequency (Hz) | 54 |
| Highest frequency (Hz) | 8000 |
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