Visaton BF 30 R 4 Ohm 3 cm Full-Range Speaker Black

The Visaton BF 30 R is a 3 cm full-range driver that delivers clear, balanced sound from a remarkably compact chassis. Its neodymium magnet system and paper cone with rubber surround provide efficient output and reliable performance in tight installations.

Advantages

This driver combines a shallow mounting depth of just 13.5 mm with a wide frequency range of 200–20,000 Hz. The 4-ohm impedance allows easy integration into small audio systems, while the rubber surround improves durability and reduces distortion at higher excursions.

Suitable for

• Portable Bluetooth speakers and smart home devices
• Compact multimedia systems and desktop monitors
• Model making, robotics, and DIY audio projects
• Replacement driver for small full-range applications

Key specifications

• Nominal diameter: 3 cm (1.2 inch)
• Rated power: 5 W RMS, maximum 8 W
• Impedance: 4 Ohm
• Frequency response: 200–20,000 Hz
• Mean sound pressure level: 80 dB (1 W/1 m)
• Resonance frequency: 300 Hz
• Voice coil diameter: 13 mm
• Magnet type: Neodymium
• Cone material: Paper, surround: Rubber
• Outer diameter: 30 mm, cutout: 28 mm, depth: 13.5 mm
• Colour: Black

Recommendations

Pair with a small sealed or vented enclosure of 0.05–0.1 litres for optimal bass response. Use a low-pass filter below 15 kHz if high-frequency beaming is noticeable. Ensure the amplifier can deliver at least 5 W into 4 ohms for full output.