B 80 - 8 Ohm

Art. No. 1261

8 cm (3.3") high-end full-range loudspeaker with excellent balanced response characteristics. Due to perfect accordance of the coated paper cone, the rear ventilated damper and the phase plug, as well as the strong and lightweight neodymium magnet, an extremely well-balanced frequency response with very low harmonic distortion and lowest possible mechanical losses comes into being. The B 80 8 OHM is ideal for small high-end shelf speakers or as a mid-high-range unit in high-end multi-way speakers.

Technical Data

0.87 mm/N
Rated power
30 W
Maximum power
50 W
Nominal impedance Z
8 Ohm
Frequency response
80–20000 Hz
Mean sound pressure level
85 dB (1 W/1 m)
Opening angle (-6 dB)
119°/4000 Hz
Maximum linear displacement
2.2 mm
Resonance frequency fs
110 Hz
Magnetic induction
1.17 T
Magnetic flux
290 µWb
Height of front pole-plate
3 mm
Voice coil diameter
25 mm
Height of winding
7.5 mm
Cutout diameter
89 mm
Net weight
0.32 kg
D.C. resistance Rdc
6.6 Ohm
Mechanical Q factor Qms
Electrical Q factor Qes
Total Q factor Qts
Equivalent volume Vas
1.8 l
Effective piston area Sd
38.5 cm²
Dynamically moved mass Mms
2.8 g
Force factor Bxl
4.15 Tm
5.1 x 0.5 mm (+)2.8 x 0.5 mm (−)
Frequency- and impedance response
Directivity pattern