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Visaton FRS 8 4 Ohm, 3.3 Inch, HiFi Full Range Speaker

Part number: 2003

A compact 8 cm HiFi full-range driver for small loudspeakers, electronic equipment and model-making projects.

Nominal size
8 cm / 3.3 inch
Impedance
4 Ω
Rated power
30 W
Cut-out
Ø 73 mm
Frame / overall depth
78 mm square / 40 mm
Sensitivity
82 dB · 1 W/1 m
ex VAT
£16.74 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 FRS 8 uses a metal basket and a moisture-resistant cone. This is the 4 Ω model, part 2003. Its compact format suits surround effects and small subwoofer/satellite systems; a moisture-resistant cone does not make the complete driver waterproof.

Typical applications

  • Compact HiFi and surround-effect speakers
  • Monitoring audio in electronic equipment
  • Model construction
  • Ceiling speakers in buses and railway carriages
Full specifications
FRS 8 · 4 Ω
Rated power30 W
Maximum power50 W
Nominal impedance4 Ω
Frequency response (−10 dB)100–20000 Hz
Mean sound pressure level82 dB (1 W/1 m)
Opening angle (−6 dB)180°/4000 Hz
Excursion limit±2.5 mm
Resonance frequency (fs)120 Hz
Magnetic induction0.8 T
Magnetic flux200 µWb
Height of front pole-plate4 mm
Voice coil diameter20 mm
Height of winding4.5 mm
Cut-out diameter73 mm
Net weight0.28 kg
DC resistance (Rdc)3.5 Ω
Mechanical Q factor Qms3.61
Electrical Q factor Qes0.85
Total Q factor Qts0.69
Equivalent volume Vas1 l
Effective piston area Sd31 cm²
Dynamically moved mass Mms2.5 g
Force factor Bxl2.2 T m
Inductance of the voice coil L0.4 mH
Terminals4.8 x 0.8 mm (+)/2.8 x 0.8 mm (-)
Temperature range–25 to 70 °C; contact us for use in extreme temperatures
Dimensions and drawings
Installation and cabinet guidance

Allow for a 73 mm panel opening and match the fixing slots before drilling. Leave room behind the speaker for the magnet, terminals and wiring. Optional grille 1138 suits rear mounting; grille 4634 suits front mounting.

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