MONACOR SPH-30X/8SW
4Ω
8Ω
Full-range
Nominal diameter | 3″ / 81 mm |
Resonance | 105 Hz |
Q factor | 0.42 |
Sensitivity | 86 dB |
Linear excursion | ± 2 mm |
Program Power | 50 W |
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- Sensitivity (1W, 1m, infinite baffle) SPL1W 86dB
- Frequency response 105 - 17000Hz
Thiele & Small parameters
- Resonance frequency (free air) fS 105Hz
- Mechanical quality factor QMS 8.59
- Electrical quality factor QES 0.49
- Total quality factor QTS 0.42
Large signal parameters
- Maximum linear excursion xmax 2mm
- Air volume displaced at xmax VD 6cm³
- Power handling P 20W
- Program power Pmax 50W
Voice Coil
- Nominal impedance Z 8Ω
- DC resistance RE 5.7Ω
- Inductance (1kHz) LE 0.5mH
- VC Diameter 21mm
- Winding material Kapton
Magnet
- Force factor Bl 4.48N/A
- Motor constant Bl/√RE 1.88N/√W
Diaphragm
- Effective diameter 62mm
- Effective area SD 30cm²
- Moving mass MMS 2.65g
- Moving mass (without air load) MMD 2.5g
Suspensions
- Stiffness KMS 1.11N/mm
- Compliance CMS 900µm/N
- Equivalent volume to the compliance VAS 1.3L
- Mechanical resistance RMS 0.2N·s/m
Dimensions
- Nominal diameter 3″
- 81 x 81mm
- Overall size 81 x 81mm
- Baffle cutout diameter 73mm
- Overall depth 42mm
- Flange thickness 1mm
- Mounting depth 41mm
- Volume occupied by the driver (estimated) 0.11L
- Net weight 0.141kg
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