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Visaton BS 76 8 Ohm, Structure-Borne Sound Driver

BS 76 · 8 Ω · part 4511 — Product photo

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BS 76 · 8 Ω · part 4511 — Product photo Product photo BS 76 · 8 Ω · part 4511 — Mounting face with M5 insert Mounting face with M5 insert BS 76 · 8 Ω · part 4511 — Dimension drawing Dimension drawing

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

BS 76 · 8 Ω · part 4511 — Product photo

Product photo

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Part number: 4511

A sealed structure-borne sound driver that screws to a resonant surface to radiate midrange and high frequencies.

Type
Structure-borne sound driver
Impedance
8 Ω
Rated power
20 W
Protection
IP68 — tested at 2 m water depth for 24 h
Resonance
200 Hz
Fixing
M5 screw
ex VAT
£32.34 inc VAT
Maximum quantity available reached.

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

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Description

The BS 76 is a structure-borne sound driver for midrange and high frequencies: an M5 screw fixes it to a surface that is able to resonate, which then radiates the sound; no enclosure is needed. It is sealed, with a fixed 3 m cable, and is rated IP68, tested at 2 m water depth for 24 hours. This 8 Ω version handles 20 W rated power (30 W maximum).

Typical applications

  • Sound output through resonant surfaces without an enclosure
  • Midrange and high-frequency structure-borne sound
  • Installations exposed to water
Full specifications
BS 76 · 8 Ω
Rated power20 W
Maximum power30 W
Nominal impedance8 Ω
Resonance frequency fs200 Hz
BodyØ76.5 mm, 31 mm deep
Net weight0.41 kg
Weight with cable0.48 kg
Cable length3 m
MountingM5 screw into the threaded insert on the mounting face
Protective systemIP68 — tested at 2 m water depth for 24 h
Temperature range−25 to 80 °C
Dimensions and drawings
BS 76 · 8 Ω · part 4511 — Dimension drawing

Dimension drawing · Open original image

Installation and cabinet guidance

The BS 76 is a sealed structure-borne sound driver, 76.5 mm in diameter and 31 mm deep, with a fixed 3 m cable. It fixes with a single M5 screw into the threaded insert on its mounting face, onto a surface that is able to resonate; no enclosure is needed. Fix it firmly against a clean, flat area, and check the surface and the position by listening before final fixing. Where the surface itself cannot be tapped, attach a matching threaded bolt or stud to it securely first.

The IP68 rating is the manufacturer's test at 2 m water depth for 24 hours; the fixed cable leaves the housing sealed, so make the cable's connection to the amplifier where it stays dry. Where the cable is exposed, run it downwards from the unit and leave a drip loop before that connection. Operating temperature range −25 to 80 °C. The BS 76 is a converter for midrange and high frequencies, and its output depends on the surface it drives.

Connect the two cable leads to an amplifier suitable for the 8 Ω load, keeping the polarity consistent between units, and keep the drive within the 20 W rating (30 W maximum). Route the cable so that it cannot rattle against the surface, clipping it clear of the driver and of any part of the surface that is free to move.

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