Mechanical Drawing:

Electro-Acoustic Parameters
1. Rated impedance                                                                                Z:                       8Ω
2. Voice coil resistance                                                                           R:                       6.8Ω  ± 10 %
3. Resonance frequency                                                                        F0:                      1400Hz ± 15 %  
              (measured at 2ccm back cavity 1.55Vrms)
4. Measured characteristic sensitivity                                                                                97.5± 3dB
               (2kHz at 1.55Vrms in 3.16cm 2cc back)

Power Handing
Loudspeaker mounted in lifetime test device (2ccm back cavity, open front)
1. MAX.SHORT TERM POWER (1sec. ON / 60sec. OFF)                                             2.0Vrms
(pink noise, 2nd order high pass filtered, -3dB at 800Hz, crest factor 2)
2. MAX. CONTINUOUS POWER (168h)                                                                       1.55Vrms
(pink noise, 2nd order high pass filtered, -3dB at 800Hz, crest factor 2)