Mechanical Drawing:
Electro-Acoustic Parameters
1.Rated impedance Z: 4Ω
2.Voice coil resistance R: 4Ω±15%
3.Resonance frequency F0: 850±20%Hz
(measured 1.5Vrms，in free air)
4.Measured characteristic sensitivity 86± 3dB
(measured at baffle 2Vrms,at 2-3kHz)
Power Handing
Loudspeaker mounted in lifetime test device (open back cavity, open front)
1. MAX.SHORT TERM POWER (1sec. ON / 60sec. OFF) 1.2W (RMS)
(pink noise, 2nd order high pass filtered, -3dB at 1000Hz, crest factor 2)
2. MAX. CONTINUOUS POWER (168h) 1W (RMS)
(pink,noise, 2nd order high pass filterde, -3dB at 1000Hz, crest factor 2)
