PURIFI PTT4.0M08-NFC-01
4Ω
8Ω
Mid-range
| Nominal diameter | 4″ / 125 mm |
| Resonance | 48 Hz |
| Q factor | 0.31 |
| Sensitivity | 84.2 dB |
| Linear excursion | ± 2.9 mm |
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Specifications
- Sensitivity (1W, 1m, infinite baffle) SPL1W 84.2dB
Thiele & Small parameters
- Resonance frequency (free air) fS 48Hz
- Mechanical quality factor QMS 5.00
- Electrical quality factor QES 0.33
- Total quality factor QTS 0.31
Large signal parameters
- Maximum linear excursion (one way) xmax 2.9mm
- Maximum excursion before damage xlim 6.9mm
- Air volume displaced at xmax VD 16cm³
Voice Coil
- Nominal impedance Z 8Ω
- DC resistance RE 5.8Ω
- Inductance (1kHz) LE 0.37mH
- VC Diameter 30mm
- Winding height HVC 9.9mm
- Winding material Copper Clad Aluminum
Magnet
- Force factor Bl 7N/A
- Motor constant Bl/√RE 2.91N/√W
- Air gap height HAG 4mm
- Diameter 90mm
Diaphragm
- Effective diameter 85mm
- Effective area SD 56.7cm²
- Moving mass MMS 9.4g
- Moving mass (without air load) MMD 9.1g
- Material Proprietary Fiber Mix
Suspensions
- Stiffness KMS 0.855N/mm
- Compliance CMS 1170µm/N
- Equivalent volume to the compliance VAS 5.3L
- Mechanical resistance RMS 0.57N·s/m
Dimensions
- Nominal diameter 4″
- 125mm
- Overall diameter 125mm
- Baffle cutout diameter 101mm
- Overall depth 78mm
- Flange thickness 4mm
- Mounting depth 74mm
- Volume occupied by the driver 0.23L
- Net weight 1.25kg
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Export this driver to a simulation software:
Closed Box Simulator·
Speakerbench
WinISD
Basta!
Hornresp
QSpeakers
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