The Bosch LBB1990/00 is the heart of the PLENA Voice Alarm System: six zones on board, up to 120 zones with routers, a built-in 240 W amplifier and message manager, supervised emergency microphone, EN 54-16 certified. Scroll down for details.

Bosch PRS‑2P250 Power Amplifier 2 x 250 W, 2-channel power amplifier with Praesideo network, connection, rack unit 2 RU, Frequency response : 60 Hz to 19 kHz (-3 dB), Rated load resistance 40 ohm (100 V); 20 ohm (70 V), 10 ohm (50 V) Loudspeaker output.

The Bosch LBB1992/00 adds six zones and 12 input contacts to the PLENA Voice Alarm System, with one or two amplifiers for calls and background music at the same time. EN 54-16 certified. Scroll down for details.

The Bosch LBB1938/30 is the 480 W power amplifier of the PLENA Voice Alarm System: 70 V / 100 V and 8 ohm outputs, dual inputs with priority switching, EN 54-16 certified, 3 U. Scroll down for details.

The Bosch LBB1935/20 is a 240 W PLENA power amplifier in a 2 U housing: 70 V / 100 V and 8 ohm outputs, dual inputs with priority switching, 100 V input for slave use. Scroll down for details.

The Bosch LBB1956/00 is the PLENA six-zone call station: zone, all-call and PTT keys, condenser microphone on a flexible stem, selectable gain, speech filter and limiter; up to 8 LBB1957/00 keypads. Scroll down for details.

The Bosch LBB1957/00 adds seven zone keys with LEDs to the LBB1956/00 call station; up to eight keypads per station, same metal base, flush-mountable. Scroll down for details.

A slim 20 W aluminium column loudspeaker for speech where directivity matters: passenger terminals, places of worship, conference venues, pools and factories. IP65 for indoor and outdoor use, designed for voice alarm to EN 54-24. 70 V, 100 V or 8 ohm; swivel bracket supplied. Scroll down for details.

A slim 40 W aluminium column loudspeaker for speech where directivity matters: passenger terminals, places of worship, conference venues, pools and factories. IP65 for indoor and outdoor use, designed for voice alarm to EN 54-24. 70 V, 100 V or 8 ohm; swivel bracket supplied. Scroll down for details.

A powerful 36 W column loudspeaker with four high-sensitivity dual-cone drivers, for speech and music where directivity matters indoors. Solid MDF in easy-clean vinyl with a cloth front; swivel wall bracket supplied. Scroll down for details.

A powerful 36 W column loudspeaker with four high-sensitivity dual-cone drivers, for speech and music where directivity matters indoors. Solid MDF in easy-clean vinyl with a cloth front; swivel wall bracket supplied. Scroll down for details.

A cost-effective bidirectional cabinet loudspeaker for good speech and background music indoors. A wedge-shaped cabinet with two drivers on an angled baffle for a very wide 270° spread: ideal for long corridors and shopping arcades. Scroll down for details.

A premium-sound 20 W two-way cabinet loudspeaker in an aluminium enclosure for high-fidelity music and speech, indoors and outdoors: IP65, wind force Bft 11 and EN54-24 certified for voice alarm. 70 V, 100 V or 8 ohm via a rotary tap switch; wall bracket supplied. Charcoal RAL 7021. Scroll down for details.

A premium-sound 20 W two-way cabinet loudspeaker in an aluminium enclosure for high-fidelity music and speech, indoors and outdoors: IP65, wind force Bft 11 and EN54-24 certified for voice alarm. 70 V, 100 V or 8 ohm via a rotary tap switch; wall bracket supplied. White RAL 9010. Scroll down for details.

A premium-sound 50 W two-way cabinet loudspeaker in an aluminium enclosure for high-fidelity music and speech, indoors and outdoors: IP65, wind force Bft 11 and EN54-24 certified for voice alarm. 70 V, 100 V or 8 ohm via a rotary tap switch; wall bracket supplied. White RAL 9010. Scroll down for details.

A cost-effective cabinet loudspeaker for good speech and background music indoors. Solid MDF in easy-clean vinyl with a cloth front, brackets for wall or ceiling included, 70 V and 100 V taps. Scroll down for details.

A cost-effective cabinet loudspeaker for good speech and background music indoors. Solid MDF in easy-clean vinyl with a cloth front, brackets for wall or ceiling included, 70 V and 100 V taps. Scroll down for details.

A premium-sound 15 W two-way cabinet loudspeaker for speech, foreground and background music, indoors and outdoors: compact ABS with an aluminium grille, IP65, chlorine, corrosion and salt-mist resistant. Selectable 8 ohm, 70 V or 100 V; adjustable bracket with anti-theft screws. Charcoal RAL 7021. Scroll down for details.

A premium-sound 15 W two-way cabinet loudspeaker for speech, foreground and background music, indoors and outdoors: compact ABS with an aluminium grille, IP65, chlorine, corrosion and salt-mist resistant. Selectable 8 ohm, 70 V or 100 V; adjustable bracket with anti-theft screws. White RAL 9010. Scroll down for details.

A premium-sound 30 W two-way cabinet loudspeaker for speech, foreground and background music, indoors and outdoors: compact ABS with an aluminium grille, IP65, chlorine, corrosion and salt-mist resistant. Selectable 8 ohm, 70 V or 100 V; adjustable bracket with anti-theft screws. White RAL 9010. Scroll down for details.