Visaton SC 5.9 ND 8 Ohm, 2 x 3.5 Inch, Full Range Oval Speaker
Product photo · Enlarge image
Product photo
Rear view and connections
Dimension drawing
Response and impedance
Directivity pattern — vertical
Directivity pattern — horizontal
Product photographs and manufacturer drawings. Images are not to scale.
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The SC 5.9 ND uses a compact neodymium magnet to reduce weight and mounting space in TVs, PCs and monitoring equipment. Its magnetically shielded construction and clear upper-frequency response suit speech and multimedia audio. This 8 Ω version handles 3 W rated power and weighs 60 g.
Typical applications
- TV and PC audio
- Electronic monitoring
- Compact multimedia systems
Full specifications
| Rated power | 3 W |
|---|---|
| Maximum power | 4 W |
| Nominal impedance | 8 Ω |
| Frequency response (−10 dB) | 150–17000 Hz |
| Mean sound pressure level | 82 dB (1 W/1 m) |
| Opening angle (-6 dB) | 180°/4000 Hz horizontal; 131°/4000 Hz vertical |
| Excursion limit | ±1 mm |
| Resonance frequency fs | 280 Hz |
| Magnetic induction | 0.75 T |
| Magnetic flux | 100 µWb |
| Height of front pole-plate | 3 mm |
| Voice coil diameter | 14 mm |
| Height of winding | 4 mm |
| Cut-out | 43 x 82 mm (oval) |
| Net weight | 0.06 kg |
| D.C. resistance Rdc | 7.7 Ω |
| Mechanical Q factor Qms | 6.98 |
| Electrical Q factor Qes | 10.02 |
| Total Q factor Qts | 4.11 |
| Equivalent volume Vas | 0.4 l |
| Effective piston area Sd | 26.5 cm² |
| Dynamically moved mass Mms | 1.2 g |
| Force factor Bxl | 1.2 Tm |
| Inductance of the voice coil L | 0.4 mH |
| Terminals | Blade terminals — check width and thickness before selecting connectors |
| Temperature range | –25 to 70 °C |
Dimensions and drawings

Dimension drawing · Open original image
Installation and cabinet guidance
Allow for a 43 × 82 mm oval opening, 50 × 90.5 mm frame and 28.5 mm depth, plus wiring clearance. Check connector fit on the supplied driver before ordering terminals. Confirm impedance and fixing positions when replacing an existing speaker.
Mount on a rigid panel with a continuous seal around the frame to prevent air leaks and rattles. Keep the cone and surround clear of the grille and internal parts.
Use an amplifier suitable for the 8 Ω load and follow the polarity marks. Check blade width and thickness before choosing connectors, insulate the connections and secure the wiring clear of the moving parts.
Use this impedance version’s enclosure parameters when developing a cabinet, and test the response at the intended listening level. Allow for the volume occupied by the driver and keep damping material clear of the cone and terminals.
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