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Visaton FR 77 8 Ohm, 3 Inch, Full Range Speaker

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FR 77 · 8 Ω · part 4629 — Product photo

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FR 77 · 8 Ω · part 4629 — Product photo Product photo FR 77 · 8 Ω · part 4629 — Label and terminals Label and terminals FR 77 · 8 Ω · part 4629 — Dimension drawing Dimension drawing FR 77 · 8 Ω · part 4629 — Response and impedance Response and impedance FR 77 · 8 Ω · part 4629 — Directivity pattern Directivity pattern

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

FR 77 · 8 Ω · part 4629 — Product photo

Product photo

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Part number: 4629

A compact 7.7 cm full-range driver for conference, communication and multimedia installations.

Nominal size
7.7 cm / 3 inch
Impedance
8 Ω
Rated power
5 W
Cut-out
71 mm
Sensitivity
87 dB (1 W/1 m)
Resonance
250 Hz
£7.95 Business price, ex VAT £9.54 inc VAT at 20%
Maximum quantity available reached.

Description

The FR 77 combines 5 W rated power with 87 dB sensitivity. Its square frame suits built-in speech and music systems.

Typical applications

  • Conference systems
  • Communication equipment
  • Multimedia installations
  • Column loudspeakers
Full specifications
FR 77 · 8 Ω
Rated power5 W
Maximum power7 W
Nominal impedance8 Ω
Frequency response (−10 dB)150–20000 Hz
Mean sound pressure level87 dB (1 W/1 m)
Resonance frequency fs250 Hz
Cut-out71 mm — check fit against the driver before cutting
Net weight0.15 kg
Terminals4.8 x 0.8 mm (+)/2.8 x 0.8 mm (-)
Temperature range-20 to 70 °C
Dimensions and drawings
FR 77 · 8 Ω · part 4629 — Dimension drawing

Dimension drawing · Open original image

Installation and cabinet guidance

Allow for a 77 mm square frame and 32.8 mm speaker depth, plus room for the connections. Confirm the required panel opening against the actual driver before cutting.

Use an amplifier suitable for the 8 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.

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