500 W compression driver W157556

for horn speakersfor industrial alarmsneodymium

Rated impedance - 8 - ohm - Sensitivity(1w/1m) - 98 - dB - Frequency Range - Fs-4000 - Hz - Voice Coil Diameter - 75/3 - mm/inch - Voice Coil Material - Copper - - Number of layer - 2 - - Kind of layer - inside/outside Resonance frequency - Fs - 41 - Hz Dc resistance - Re - 5.2 - ohm Mechanical factor - Qms - 7.6014 - Electrical factor - Qes - 0.3791 - Total factor - Qts - 0.3611 - BL factor - BL - 21 - T.M Effective Moving mass - Mms - 105.65 - g Effective Cas air load - Vas - 168.7099 - liters Effective piston area - Sd - 0.0946 - m^2 Overall Diameter - Φ387/Φ15.24 - mm/inch - Bolt Circle Diameter - Φ370/Φ14.55 - mm/inch - Bolt Hole Diameter - 8-Φ7.15/8-Φ0.28 - mm/inch - Mount Baffle Cut-out - Φ357/Φ14.06 - mm/inch - Depth - 140/5.52 - mm/inch Net Weight ( 1 unit) - 4.1 - kg - Shipping Weight ( 1 unit) - 5.7 - kg - Package Size ( 1 unit) - 405*405*214 - mm