Dayton Audio Reference RS125P-4
4Ω
8ΩWoofer
| Nominal diameter | 5″ / 126 mm |
| Resonance | 70 Hz |
| Q factor | 0.48 |
| Sensitivity | 85.7 dB |
| Linear excursion | ± 4 mm |
| Program Power | 60 W |
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Specifications
- Sensitivity (1W, 1m, infinite baffle) SPL1W 85.7dB
- Frequency response 70 - 12000Hz
Thiele & Small parameters
- Resonance frequency (free air) fS 70Hz
- Mechanical quality factor QMS 3.19
- Electrical quality factor QES 0.57
- Total quality factor QTS 0.48
Large signal parameters
- Maximum linear excursion xmax 4mm
- Air volume displaced at xmax VD 22cm³
- Power handling P 30W
- Program power Pmax 60W
Voice Coil
- Nominal impedance Z 4Ω
- DC resistance RE 3.1Ω
- Inductance (1kHz) LE 0.32mH
- VC Diameter 25mm
- Winding material Copper
- Former material Aluminum
Magnet
- Force factor Bl 3.49N/A
- Motor constant Bl/√RE 1.98N/√W
- Material Ferrite
Diaphragm
- Effective diameter 83mm
- Effective area SD 54.1cm²
- Moving mass MMS 5.1g
- Moving mass (without air load) MMD 4.8g
- Material Paper / Kevlar
Suspensions
- Stiffness KMS 0.98N/mm
- Compliance CMS 1020µm/N
- Equivalent volume to the compliance VAS 3.98L
- Mechanical resistance RMS 0.7N·s/m
- Surround material Rubber
Dimensions
- Nominal diameter 5″
- 126mm
- Overall diameter 126mm
- Baffle cutout diameter 94mm
- Overall depth 55mm
- Volume occupied by the driver (estimated) 0.2L
- Frame material Cast Aluminium
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Export this driver to a simulation software:
Closed Box Simulator·
Speakerbench
WinISD
Basta!
Hornresp
QSpeakers
SpeakerSim
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