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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.
General characteristics | |
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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 | |
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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) | |
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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 |