Mechanical Drawing:

Electro-Acoustic Parameters
1. Rated impedance                                                                                Z:                       8Ω
2. Voice coil resistance                                                                           R:                       7Ω  ± 8 %
3. Resonance frequency                                                                        F0:                       900Hz ± 20 %  
              (measured 2.83Vrms open back cavity)
4. Measured characteristic sensitivity(at 1W in 10cm)                                                      96± 3dB
               3.5cc back cavity at the frequency point:                                                             2kHz
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 (96h)                                                                          1W(RMS)
(pink noise, 2nd order high pass filtered, -3dB at 1000Hz, crest factor 2)