FR 6,5" - 8 Ohm

Art. No. 31065

16 cm (6.5") full-range driver with tweeter cone. Due to the good highs very suitable for sound reinforcement systems. Water resist cone due to impregnation. Removable decoration ring.

Typical applications
Ceiling-mounted speakers
Public address applications
Electronic musical instruments

Technical Data

Rated power
40 W
Maximum power
60 W
Nominal impedance Z
8 Ohm
Frequency response
70–20000 Hz
Mean sound pressure level
87 dB (1 W/1 m)
Opening angle (-6 dB)
41°/4000 Hz
Excursion limit
+/−3 mm
Resonance frequency fs
75 Hz
Magnetic induction
0.75 T
Magnetic flux
190 µWb
Height of front pole-plate
4 mm
Voice coil diameter
20 mm
Height of winding
4 mm
Cutout diameter
143 mm
Net weight
0.47 kg
D.C. resistance Rdc
6.8 Ohm
Mechanical Q factor Qms
Electrical Q factor Qes
Total Q factor Qts
Equivalent volume Vas
16 l
Effective piston area Sd
129 cm²
Dynamically moved mass Mms
5.9 g
Force factor Bxl
2.5 T m
Inductance of the voice coil L
0.8 mH
4.8 x 0.8 mm (+)2.8 x 0.8 mm (−)
Frequency- and impedance response
Directivity pattern