Mechanical Drawing:

Electro-Acoustic Parameters
1. Rated impedance                                                                                Z:                       6Ω
2. Voice coil resistance                                                                           R:                       5.2Ω  ± 15 %
3. Resonance frequency                                                                        F0:                       850Hz ± 15 %  
              (measured at 1ccm 2.05Vrms)
4. Measured characteristic sensitivity(at 0.7W(2.05V) in 10cm)                                       93± 3dB
               1cc back cavity at the frequency point:                                                                2kHz
Power Handing
Loudspeaker mounted in lifetime test device (2ccm back cavity, open front)
1. MAX.SHORT TERM POWER (1sec. ON / 60sec. OFF)                                             1W(RMS)
(pink noise, 2nd order high pass filtered, -3dB at 800Hz, crest factor 2)
2. MAX. CONTINUOUS POWER (168h)                                                                       0.7W(RMS)
(pink noise, 2nd order high pass filtered, -3dB at 800Hz, crest factor 2)