FRS 10 WP - 4 Ohm (black)

Art. No. 2100

Saltwater resistant 10 cm (4") full-range driver with glas fibre cone, plastic basket and grille. Balanced frequency response, high efficiency and good high-midrange reproduction. Long time weather proved and therefore especially suited for out-door sound reinforcement systems, swimming pools, sauna and speaker for boats, ships and open vehicles. Also suitable for model boat applications.

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

Typical applications
Outdoor PA systems
Speaker systems for saunas
Weatherproof network column speakers
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: PC (UL 94: V-0)
  • Temperature resistant up to 120 °C
  • Ball-resistant

Technical Data

Rated power
25 W
Maximum power
50 W
Nominal impedance Z
4 Ohm
Frequency response
90–19000 Hz
Mean sound pressure level
90 dB (1 W/1 m)
Opening angle (-6 dB)
64°/4000 Hz
Excursion limit
+/−3 mm
Resonance frequency fs
190 Hz
Magnetic induction
1.0 T
Magnetic flux
190 µWb
Height of front pole-plate
3 mm
Voice coil diameter
20 mm
Height of winding
5 mm
Cutout diameter
92 mm
Net weight
0.36 kg
D.C. resistance Rdc
3.4 Ohm
Mechanical Q factor Qms
Electrical Q factor Qes
Total Q factor Qts
Equivalent volume Vas
2 l
Effective piston area Sd
57 cm²
Dynamically moved mass Mms
2.4 g
Force factor Bxl
3.8 Tm
Inductance of the voice coil L
0.2 mH
schwarz / black
4.8 x 0.8 mm (+)2.8 x 0.8 mm (−)
Protective system
IP 65 *)
Temperature range
−40 ... 120 °C
Frequency- and impedance response
Directivity pattern