120W compression driver W085042

for horn speakersfor industrial alarmsferrite

Rated impedance - 8 - ohm - Sensitivity(1w/1m) - 94 - dB - Frequency Range - Fs-4000 - Hz - Voice Coil Diameter - 50/2 - mm/inch - Voice Coil Material - Copper - - Number of layer - 2 - - Kind of layer - inside/outside Resonance frequency - Fs - 58 - Hz Dc resistance - Re - 6.1 - ohm Mechanical factor - Qms - 6.97 - Electrical factor - Qes - 0.34 - Total factor - Qts - 0.33 - BL factor - BL - 13 - T.M Effective Moving mass - Mms - 23.06 - g Effective Cas air load - Vas - 20.22 - liters Effective piston area - Sd - 0.0214 - m^2 Overall Diameter - Φ210/Φ8.27 - mm/inch - Bolt Circle Diameter - Φ197.5/Φ7.78 - mm/inch - Bolt Hole Diameter - 8-Φ5.4/8-Φ0.21 - mm/inch - Mount Baffle Cut-out - Φ186/Φ7.32 - mm/inch - Depth - 104/5.4.09 - mm/inch