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FR 13 WP - 4 Ohm (black)

Art. No. 2133

Saltwater resistant 13 cm (5") full-range driver with moulded plastic cone, plastic basket and grille. Absolutely corrosion-resistant and waterproof due to encased magnet and silicon-coated leads. Clear-cut high-range output.

*) IP protection class for front side when built into a sealed enclosure

Typical applications

  • Outdoor PA systems
  • Loudspeaker for solariums and damp
  • Boats, ships and open vehicles


  • Suitable for outdoor applications
  • Seawater proof
  • Functionally at low temperature according to EN 60068-2-1 (-40 °C; 96 h)
  • Up to the standards of the Germanischer Lloyd (requirements for electrical equipment/low temperature)
  • Plastic: ASA (UL 94:HB; UV-/weather-proof)
  • Ball-resistant
*Gross price for private customers. Industrial prices are available on request.
Technical Data
Amplitude & Impedance Frequency
Directivity pattern
Rated power 40 W
Maximum power 60 W
Nominal impedance Z 4 Ohm
Frequency response 70–16000 Hz
Mean sound pressure level 85 dB (1 W/1 m)
Opening angle (-6 dB) 69°/4000 Hz
Excursion limit +/−2.5 mm
Resonance frequency fs 100 Hz
Magnetic induction 0.85 T
Magnetic flux 210 µWb
Height of front pole-plate 4 mm
Voice coil diameter 20 mm
Height of winding 5 mm
Cutout diameter 112 mm
Net weight 0.29 kg
D.C. resistance Rdc 3.8 Ohm
Mechanical Q factor Qms 2.49
Electrical Q factor Qes 2.19
Total Q factor Qts 1.17
Equivalent volume Vas 4.4 l
Effective piston area Sd 78 cm²
Dynamically moved mass Mms 4.8 g
Force factor Bxl 2.3 Tm
Inductance of the voice coil L 0.4 mH
Colour black
Connections 4.8 x 0.8 mm (+)/2.8 x 0.8 mm (-)
Protective system IP 65 *)IP 67
Temperature range −40 ... 80 °C

Used in / Accessories:

Gasket for FR 13 WP

For watertight mounting of FR 13 WP 4 OHM (black) and FR 13 WP 4 OHM (white).

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