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Visaton SC 4.7 ND 8 Ohm, 1.6 x 2.8 Inch, Full Range Oval Speaker

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SC 4.7 ND · 8 Ω · part 8048 — Product photo

Product photo · Enlarge image

SC 4.7 ND · 8 Ω · part 8048 — Product photo Product photo SC 4.7 ND · 8 Ω · part 8048 — Rear view and connections Rear view and connections SC 4.7 ND · 8 Ω · part 8048 — Dimension drawing Dimension drawing SC 4.7 ND · 8 Ω · part 8048 — Response and impedance Response and impedance SC 4.7 ND · 8 Ω · part 8048 — Directivity pattern — horizontal Directivity pattern — horizontal SC 4.7 ND · 8 Ω · part 8048 — Directivity pattern — vertical Directivity pattern — vertical

Product photographs and manufacturer drawings. Images are not to scale.

SC 4.7 ND · 8 Ω · part 8048 — Product photo

Product photo

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Part number: 8048

A shielded neodymium oval driver for very compact electronic audio.

Nominal size
4 × 7 cm / 1.6 × 2.8 inch
Impedance
8 Ω
Rated power
2 W
Cut-out
35 x 65 mm (oval)
Sensitivity
81 dB (1 W/1 m)
Connections
Blade terminals; check fit
ex VAT
£8.34 inc VAT
Maximum quantity available reached.

Stock and dispatch
Selected products are held in UK stock; other lines are sourced to order. Dispatch timing depends on the product and quantity.

Delivery information. Need it for a specific date? Ask us.

Quantity discounts

Description

The SC 4.7 ND is a narrow oval speaker for built-in speech and music reproduction in displays, PCs and other small electronic equipment. A neodymium magnet keeps the assembly compact, with magnetic shielding for use near sensitive components. This 8 Ω version handles 2 W rated power and fits a 35 × 65 mm oval opening.

Typical applications

  • TV and PC audio
  • Electronic monitoring
  • Compact displays
Full specifications
SC 4.7 ND · 8 Ω
Rated power2 W
Maximum power4 W
Nominal impedance8 Ω
Frequency response (−10 dB)220–20000 Hz
Mean sound pressure level81 dB (1 W/1 m)
Opening angle (-6 dB)180°/4000 Hz horizontal; 180°/4000 Hz vertical
Excursion limit±0.5 mm
Resonance frequency fs360 Hz — confirm before enclosure design
Magnetic induction0.7 T
Magnetic flux60 µWb
Height of front pole-plate2 mm
Voice coil diameter14 mm
Height of winding2 mm
Cut-out35 x 65 mm (oval)
Net weight0.041 kg
D.C. resistance Rdc7.7 Ω
Mechanical Q factor Qms5.31
Electrical Q factor Qes8.34
Total Q factor Qts3.24
Equivalent volume Vas0.11 l
Effective piston area Sd16 cm²
Dynamically moved mass Mms0.6 g
Force factor Bxl1.12 Tm
Inductance of the voice coil L0.3 mH
Terminals4.8 mm (+) / 2.8 mm (−) blades — check thickness before selecting connectors
Temperature range–25 to 70 °C
Dimensions and drawings
SC 4.7 ND · 8 Ω · part 8048 — Dimension drawing

Dimension drawing · Open original image

Installation and cabinet guidance

Allow for a 35 × 65 mm oval opening, 41.5 × 70.5 mm frame and 27.5 mm depth, with extra room for connections. Check the supplied terminal thickness before choosing connectors, and match both impedance and mounting dimensions for replacement work.

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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