TW 70 - 8 Ohm

Art. No. 9002

Cone tweeter with special basket for the high-frequency range above 5000 Hz. Balanced frequency response with brilliant highs and high power handling. Due to the sealed rear no separate high-frequency range housing construction necessary. Especially suitable as replacement unit for many HiFi speakers.

Technical Data

Nominal impedance Z
8 Ohm
Frequency response
800–20000 Hz
Mean sound pressure level
90 dB (1 W/1 m)
Opening angle (-6 dB)
82°/4000 Hz
Excursion limit
+/−0.5 mm
Resonance frequency fs
1500 Hz
Magnetic induction
0.96 T
Magnetic flux
134 µWb
Height of front pole-plate
2.5 mm
Voice coil diameter
14 mm
Height of winding
2.5 mm
Cutout diameter
64 mm
Net weight
0.165 kg
D.C. resistance Rdc
7.0 Ohm
Mechanical Q factor Qms
1.26
Electrical Q factor Qes
4.21
Total Q factor Qts
0.97
Effective piston area Sd
20 cm²
Inductance of the voice coil L
0.16 mH
Connections
4.8 x 0.8 mm (+)2.8 x 0.8 mm (−)
Peak power handling with high pass
100 W (12 dB/Okt.; 5000 Hz)60 W (12 dB/Okt.; 3000 Hz)
Nominal power handling with high pass
80 W (12 dB/Okt.; 5000 Hz)40 W (12 dB/Okt.; 3000 Hz)
Frequency- and impedance response
Directivity pattern