R 10 SC - 4 Ohm

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Magnetically shielded 10 cm (4") fullrange speaker with high efficiency, balanced frequency response. Water-repellent cone and rubber gasket. Especially suitable as control speaker in electronic devices and as speaker for public applications and public transport systems.

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

Typical applications

Video monitoring screens
Control speakers for electronic devices
Ceiling-mounted speakers in railway carriages and busses

Attributes

functionally at cold according to EN 60068-2-1/EN 50155
cold storage (-40 °C) according to EN 60068-2-1/EN 50155
functionally at damp heat (cyclic) according to EN 60068-2-3/EN 50155
functionally at dry heat according to EN 60068-2-2/EN 50155

Technical Data

Rated power	20 W
Maximum power	30 W
Nominal impedance Z	4 Ohm
Frequency response	100–13000 Hz

Mean sound pressure level	90 dB (1 W/1 m)
Opening angle (-6 dB)	92°/4000 Hz
Excursion limit	+/−1,5 mm
Resonance frequency fs	165 Hz
Magnetic induction	0,95 T
Magnetic flux	135 µWb
Height of front pole-plate	3 mm
Voice coil diameter	15 mm
Height of winding	4 mm
Cutout diameter	93 mm
Net weight	0,24 kg
D.C. resistance Rdc	3,6 Ohm
Mechanical Q factor Qms	6,4
Electrical Q factor Qes	1,67
Total Q factor Qts	1,32
Equivalent volume Vas	2,6 l
Effective piston area Sd	56 cm²
Dynamically moved mass Mms	1,9 g
Force factor Bxl	2 T m
Inductance of the voice coil L	0,2 mH
Connections	5,2 x 0,5 mm (+) 2,8 x 0,5 mm (−)
Protective system	IP 54 *)
Temperature range	−40 ... 70 °C