Peerless PMT-30N18AL04-04
4Ω
Miniature
| Nominal diameter | 1.2″ / 30 mm |
| Resonance | 240 Hz |
| Q factor | 0.65 |
| Sensitivity | 77.4 dB |
| Linear excursion | ± 1.6 mm |
| Program Power | 4 W |
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Specifications
- Sensitivity (1W, 1m, infinite baffle) SPL1W 77.4dB
- Frequency response 210 - 20000Hz
Thiele & Small parameters
- Resonance frequency (free air) fS 240Hz
- Mechanical quality factor QMS 2.13
- Electrical quality factor QES 0.94
- Total quality factor QTS 0.65
Large signal parameters
- Maximum linear excursion xmax 1.6mm
- Air volume displaced at xmax VD 0.8cm³
- Power handling P 2W
- Program power Pmax 4W
Voice Coil
- Nominal impedance Z 4Ω
- DC resistance RE 3.5Ω
- Inductance (1kHz) LE 0.067mH
- VC Diameter 18mm
Magnet
- Force factor Bl 1.84N/A
- Motor constant Bl/√RE 0.98N/√W
- Air gap height HAG 1.5mm
- Material Neodymium
Diaphragm
- Effective diameter 25mm
- Effective area SD 4.9cm²
- Moving mass MMS 0.604g
- Moving mass (without air load) MMD 0.6g
- Material Aluminum
Suspensions
- Stiffness KMS 1.02N/mm
- Compliance CMS 710µm/N
- Equivalent volume to the compliance VAS 0.024L
- Mechanical resistance RMS 0.53N·s/m
- Surround material Foam
Dimensions
- Nominal diameter 1.2″
- 30mm
- Net weight 0.025kg
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