Dayton Audio ND140-4
4Ω
8ΩMid Bass
| Nominal diameter | 5.25″ / 138 mm |
| Resonance | 59.2 Hz |
| Q factor | 0.63 |
| Sensitivity | 84.7 dB |
| Linear excursion | ± 4 mm |
| Program Power | 80 W |
.jpg)
.jpg)
.jpg)
Specifications
- Sensitivity (1W, 1m, infinite baffle) SPL1W 84.7dB
- Frequency response 54 - 8000Hz
Thiele & Small parameters
- Resonance frequency (free air) fS 59.2Hz
- Mechanical quality factor QMS 5.35
- Electrical quality factor QES 0.72
- Total quality factor QTS 0.63
Large signal parameters
- Maximum linear excursion xmax 4mm
- Air volume displaced at xmax VD 35cm³
- Power handling P 40W
- Program power Pmax 80W
Voice Coil
- Nominal impedance Z 4Ω
- DC resistance RE 3.7Ω
- Inductance (1kHz) LE 0.79mH
- VC Diameter 25.4mm
- Former material Kapton Polyimide
Magnet
- Force factor Bl 3.9N/A
- Motor constant Bl/√RE 2.03N/√W
- Material Neodymium
Diaphragm
- Effective diameter 105mm
- Effective area SD 86.6cm²
- Moving mass MMS 10.1g
- Moving mass (without air load) MMD 9.5g
- Material Black Anodized Aluminum
Suspensions
- Stiffness KMS 1.41N/mm
- Compliance CMS 710µm/N
- Equivalent volume to the compliance VAS 7.22L
- Mechanical resistance RMS 0.7N·s/m
- Surround material Rubber
Dimensions
- Nominal diameter 5.25″
- 138mm
- Overall diameter 138mm
- Baffle cutout diameter 120mm
- Overall depth 71mm
- Volume occupied by the driver (estimated) 0.32L
.png)
.png)
.png)
Export this driver to a simulation software:
Closed Box Simulator·
Speakerbench
WinISD
Basta!
Hornresp
QSpeakers
SpeakerSim
MfbLabs.jpg.webp)
.jpg.webp)
.jpg.webp)