FBT Install Libra 8S W

Libra Series: An Installation Solution by FBT

The FBT Install LIBRA 8S White belongs to the Libra series, designed for integration environments where aesthetics, reliability, and system coherence are paramount. Its cylindrical shape and white color allow installation close to listening areas without disrupting the venue's architecture, while providing essential bass reinforcement for contemporary music and audiovisual content.

Who Is the LIBRA 8S White For and What Are Its Applications?

This passive subwoofer is ideal for installation projects in bars, restaurants, shops, museums, hotels, multipurpose rooms, or corporate spaces. It effectively complements a main sound system by adding substance to the low-frequency spectrum while remaining controlled to preserve intelligibility. Thanks to its compact size, it is also suitable for setups with limited floor space.

Performance, Integration, and Implementation Recommendations

Clean and Efficient Bass in a Discreet Format

The LIBRA 8S features an 8-inch (203 mm) loudspeaker paired with a 1.5-inch (38 mm) voice coil. It delivers a maximum continuous sound pressure level of 114 dB and a peak of 117 dB, with a sensitivity of 89 dB. Its frequency response from 42 Hz to 300 Hz makes it a particularly useful low-mid and bass reinforcement to enrich the listening experience without weighing down the sound.

Amplification, Filtering, and Signal Management

With a nominal impedance of 8 ohms, the LIBRA 8S accepts a power of 150 W and up to 600 W (IEC 268-5). FBT recommends a 300 W rms amplifier to best exploit its dynamic headroom. To optimize bass control and protect the system, a high-pass filter at 38 Hz with a slope of 24 dB per octave is recommended, along with external filtering via the FBT DSP Processor if your installation includes one.

Designed for Installation: Connectivity and Construction

The Euroblock connectors (input and link) facilitate clean wiring and daisy-chaining in integration setups. The enclosure is made of Baltic Birch plywood, providing rigidity and mechanical stability, contributing to cleaner bass. The suspension included allows for installation adapted to venue constraints (discreet positioning, architectural integration, coverage optimization).

Technical specifications

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Type	Passive subwoofer	Power (IEC 268-5)	600 W
Series	Libra	Loudspeaker diameter	8 inches (203 mm)
Manufacturing	Italy	Voice coil diameter	1.5 inches (38 mm)
Color	White	Recommended high-pass filter	38 Hz, 24 dB per octave
Nominal impedance	8 ohms	Recommended external filter	FBT DSP Processor
Sensitivity	89 dB	Input	Euroblock
Frequency response	42 Hz to 300 Hz	Link	Euroblock
Dispersion H x V	Omnidirectional	Enclosure material	Baltic Birch plywood
Max continuous SPL	114 dB	Suspension	Included
Max peak SPL	117 dB	Dimensions	326 x diameter 275 mm
Recommended amplifier	300 W rms	Weight	6.1 kg
Power	150 W