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FR 12 - 4 Ohm

Art. No. 2060

13 cm (5") fullrange speaker system with an inverted cone displacement. Very compact design making this the ideal choice where space is at a premium.

Typical applications

  • Built into cars, busses or trains
  • Electronic musical instruments
  • Monitoring speaker for electronic devices
*Gross price for private customers. Industrial prices are available on request.
Technical Data
Amplitude & Impedance Frequency
Directivity pattern
Rated power 15 W
Maximum power 40 W
Nominal impedance Z 4 Ohm
Frequency response 70–18000 Hz
Mean sound pressure level 85 dB (1 W/1 m)
Opening angle (-6 dB) 79°/4000 Hz
Excursion limit +/−2.5 mm
Resonance frequency fs 110 Hz
Magnetic induction 0.8 T
Magnetic flux 150 µWb
Height of front pole-plate 3 mm
Voice coil diameter 20 mm
Height of winding 4.5 mm
Cutout diameter 114 mm
Net weight 0.284 kg
D.C. resistance Rdc 3.4 Ohm
Mechanical Q factor Qms 5.61
Electrical Q factor Qes 2.8
Total Q factor Qts 1.87
Equivalent volume Vas 8.7 l
Effective piston area Sd 87 cm²
Dynamically moved mass Mms 3.8 g
Force factor Bxl 1.7 T m
Inductance of the voice coil L 0.1 mH
Connections 4.8 x 0.8 mm (+)/2.8 x 0.8 mm (-)
Temperature range −40 ... 70 °C

Used in / Accessories:


Protective grille made of black painted metal. Decoration ring made of black plastics. Can be supplied painted in other colours on request. - Suitable for: FR 12 4 OHM FR 12 8 OHM

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