Loudspeakers and Accessories
Loudspeakers and Accessories
Visaton

SL 87 WP 4 OHM

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.

Properties:
- Plastic: Mylar (Membrane)

No longer available.

sl87wp


sl87wp_tz
sketch




sl87wp_fs
frequency- and impedance response




ip65 temperatur_40_70  



Technical Data:
Rated power 20 Watt
Maximum power 30 Watt
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 270 g
D.C. 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 l
Effective piston area Sd 41 cm2
Dynamically moved mass Mms 2,1 g
Force factor Bxl 2,68 Tm
Inductance of the voice coil L 0,47 mH


sl87wp_av1
radiation pattern 2000 Hz
sl87wp_av2
radiation pattern 5000 Hz
sl87wp_av3
radiation pattern 10000 Hz