PURIFI PTT6.5M04-NFA-01
4Ω
8ΩMid-range
| Nominal diameter | 6.5″ / 176 mm |
| Resonance | 55 Hz |
| Q factor | 0.33 |
| Sensitivity | 89 dB |
| Linear excursion | ± 2.9 mm |
| Program Power | 250 W |
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Specifications
- Sensitivity (1W, 1m, infinite baffle) SPL1W 89dB
Thiele & Small parameters
- Resonance frequency (free air) fS 55Hz
- Mechanical quality factor QMS 4.20
- Electrical quality factor QES 0.36
- Total quality factor QTS 0.33
Large signal parameters
- Maximum linear excursion (one way) xmax 2.9mm
- Maximum excursion before damage xlim 7.3mm
- Air volume displaced at xmax VD 39cm³
- Power handling P 100W
- Program power Pmax 250W
Voice Coil
- Nominal impedance Z 4Ω
- DC resistance RE 3.9Ω
- Inductance (1kHz) LE 0.26mH
- VC Diameter 39mm
- Winding height HVC 9.8mm
- Winding material Copper Clad Aluminum
Magnet
- Force factor Bl 8.1N/A
- Motor constant Bl/√RE 4.1N/√W
- Air gap height HAG 4mm
- Diameter 100mm
Diaphragm
- Effective diameter 130mm
- Effective area SD 133cm²
- Moving mass MMS 17.8g
- Moving mass (without air load) MMD 16.6g
- Material Proprietary Fiber Mix
Suspensions
- Stiffness KMS 2.13N/mm
- Compliance CMS 470µm/N
- Equivalent volume to the compliance VAS 11.7L
- Mechanical resistance RMS 1.47N·s/m
Dimensions
- Nominal diameter 6.5″
- 176mm
- Overall diameter 176mm
- Baffle cutout diameter 148mm
- Overall depth 89mm
- Flange thickness 4mm
- Mounting depth 85mm
- Volume occupied by the driver (estimated) 0.61L
- Net weight 1.75kg
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Export this driver to a simulation software:
Closed Box Simulator·
Speakerbench
WinISD
Basta!
Hornresp
QSpeakers
SpeakerSim
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