Visaton SC 4.9 FL 8 Ohm, 1.6 x 3.5 Inch, Flat Oval Full Range Speaker
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Product photographs and manufacturer drawings. Images are not to scale.
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The SC 4.9 FL combines a plastic frame with a shallow oval format for equipment where depth and panel height are restricted. It suits compact music and speech reproduction behind a narrow opening.
Typical applications
- Slim multimedia equipment
- Built-in audio with restricted mounting depth
Full specifications
| Rated power | 4 W |
|---|---|
| Maximum power | 5 W |
| Nominal impedance | 8 Ω |
| Frequency response | 120–20000 Hz |
| Mean sound pressure level | 83 dB (1 W/1 m) |
| Excursion limit | +/- 1 mm |
| Resonance frequency fs | 220 Hz |
| Magnetic induction | 1.15 T |
| Magnetic flux | 184 µWb |
| Height of front pole-plate | 2 mm |
| Voice coil diameter | 25.5 mm |
| Height of winding | 2 mm |
| Cutout diameter | 36 x 86 mm |
| Net weight | 0.054 kg |
| D.C. resistance Rdc | 6.9 Ω |
| Mechanical Q factor Qms | 3.06 |
| Electrical Q factor Qes | 2.29 |
| Total Q factor Qts | 1.31 |
| Equivalent volume Vas | 0.43 l |
| Effective piston area Sd | 23.5 cm² |
| Dynamically moved mass Mms | 0.9 g |
| Force factor Bxl | 1.98 Tm |
| Inductance of the voice coil L | 0.13 mH |
| Connections | Solder lugs |
| Protective system | IP63 at front with sealed mounting |
| Temperature range | -25 to 70 °C |
Dimensions and drawings

Dimension drawing · Open original image
Installation and cabinet guidance
Check the 36 × 86 mm cut-out, fixing pattern and complete depth against the drawing.
Use an 8 Ω-compatible amplifier and solder strain-relieved leads to the connection lugs.
IP63 applies to the front when installed with a sealed mounting joint. Protect the rear and terminals, and leave the cone clear of the grille.
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