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Visaton Speaker Driver - SL 87 WP - 4 Ohm Waterproof Fullrange Speaker
Art. No. 2067
Visaton SL87WP - 4 Ohm Waterproof Full Range Speaker.
Characteristics and Sound Properties
Water proof 8 cm (3.3") full-range loudspeaker with a transparent plastic cone and rubber sealing ring. High mean sound pressure. Optimised for voice and signal output. Magnetically shielded.
Protectioned for front side when built into a sealed enclosure.
Properties:-
- Plastic: Mylar (Membrane)
Technical Specifications
| Rated power | 20 W |
| Maximum power | 30 W |
| Nominal impedance Z | 4 Ohm |
| Frequency response | 180–10000 Hz |
| Mean sound pressure level | 87 dB (1W/1m) |
| Resonance frequency fs | 270 Hz |
| Voice coil diameter | 20 mm |
| Cutout diameter | 80 mm |
| Net weight | 0.27 kg |
| DC resistance Rdc | 3.8 Ohm |
| Mechanical Q factor Qms | 6.91 |
| Electrical Q factor Qes | 3.14 |
| Total Q factor Qts | 2.16 |
| Equivalent volume Vas | 0.37 litres |
| Effective piston area Sd | 41 cm2 |
| Dynamically moved mass Mms | 2.1 grams |
| Force factor Bxl | 2.68 Tm |
| Inductance of the voice coil L | 0.47 mH |
Driver Dimensions
Loudspeaker Driver Dimensions and Measurements - all dimensions in mm (approx.)
Frequency and Impedance Response
Loudspeaker Frequency and Impedance Response Graph
Directivity Pattern
Loudspeaker Directivity Pattern (on and off axis response)
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