Visaton R 10 S 4 Ohm, 4 Inch, Full Range Speaker
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The R 10 S is a compact 10 cm full-range driver with a balanced frequency response and high sensitivity, making it a dependable control and announcement speaker for electronic equipment, rail vehicles and buses. This 4 Ω version handles 20 W rated power and has 5.2 x 0.5 mm and 2.8 x 0.5 mm blade terminals.
Typical applications
- Equipment monitoring
- Ceiling speakers in rail vehicles and buses
- Model construction
Full specifications
| Rated power | 20 W |
|---|---|
| Maximum power | 30 W |
| Nominal impedance | 4 Ω |
| Frequency response (−10 dB) | 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 | 160 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 |
| Cut-out | 93 mm |
| Net weight | 0.16 kg |
| D.C. resistance Rdc | 3.4 Ω |
| Mechanical Q factor Qms | 5.53 |
| Electrical Q factor Qes | 1.96 |
| Total Q factor Qts | 1.45 |
| Equivalent volume Vas | 1.9 l |
| Effective piston area Sd | 56 cm² |
| Dynamically moved mass Mms | 1.9 g |
| Force factor Bxl | 1.9 T m |
| Inductance of the voice coil L | 0.2 mH |
| Terminals | 5.2 x 0.5 mm (+)/2.8 x 0.5 mm (-) |
| Protective system | IP53 — front side in a sealed enclosure |
| Temperature range | -40 to 70 °C |
Dimensions and drawings

Dimension drawing · Open original image
Installation and cabinet guidance
Allow for a 93 mm panel opening and a 102 mm square frame with four 5 x 6.9 mm fixing slots. Leave about 36 mm behind the panel for the basket, magnet and terminals, plus room for the wiring.
Use connectors that fit the 5.2 x 0.5 mm positive and 2.8 x 0.5 mm negative blade terminals. Use an amplifier suitable for the 4 Ω load and observe terminal polarity. For a 100 V line system, connect through a suitable line transformer; do not connect the driver directly to the line.
Optional protective grilles for 10 cm drivers are available; match the grille to the panel finish and check its fixing pattern against the frame before drilling.
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