KRUPS Visaton FR 87 Black 10 W speaker, 1.0 channel, 4 Ω, 100–20000 Hz

The Visaton FR 87 Black is a 8.7 cm (3.4") full-range speaker designed for balanced sound reproduction and high efficiency. It is intended for speech and music playback in electronic devices, vehicles and electronic musical instruments. The speaker features a treated cone and a metal basket and is finished in black.

Advantages

The speaker offers a wide frequency response from 100 to 20,000 Hz and an RMS rated power of 10 W, providing clear reproduction of both vocals and musical content. With a 4 Ω impedance and compact 8.7 cm size, it is suitable for installations where space is limited while still delivering efficient output. The metal basket adds mechanical stability and the moisturised (treated) cone improves durability and sound consistency.

Suitable for

• Control or monitoring speakers in electronic devices
• Use in vehicle audio systems (door panels, dashboards)
• Integration in electronic musical instruments and small amplifiers

When it may not be suitable

This compact 8.7 cm full-range speaker is not intended as a high-power main loudspeaker for large rooms or professional PA systems. If you require very high SPL, deep bass extension or use in large venues, a larger woofer or a multi-way speaker system would be more appropriate.

Key specifications

• Driver size: 8.7 cm (3.4") full-range
• Frequency range: 100 – 20,000 Hz
• RMS rated power: 10 W
• Impedance: 4 Ω
• Colour: Black
• Construction features: treated (moisturised) cone, metal basket
• Weight: 0.21 kg

How to use

Mount the speaker in a suitable enclosure or vehicle location ensuring secure fixation to the metal basket and proper acoustic sealing where required. Connect to an amplifier or audio output that can drive a 4 Ω load and observe the 10 W RMS rating to avoid overdriving. For best results, allow appropriate crossover or equalisation when integrating with other drivers to balance bass and treble reproduction.

What to consider before purchase

• Intended application (control speaker, vehicle, instrument) and available mounting space
• Amplifier compatibility with a 4 Ω load and the 10 W RMS power rating
• Desired frequency performance—this unit is full-range with limited low-frequency extension

Usage recommendations

Use the Visaton FR 87 Black as a compact full-range driver in small enclosures, vehicle doors, or instrument amplifiers. Pair with appropriate crossover or equalisation if used with subwoofers or mid/high drivers to achieve a balanced system sound. Avoid applying power significantly above the rated 10 W RMS to prevent distortion or damage.