Bosch LBB4441-00 Loudspeaker Supervision Board

The board monitors the integrity of a loudspeaker. It works together with the LBB 4440/00 Supervision Control Board. The speaker status is communicated to
the LBB 4440/00 via the existing loudspeaker cable.

Features

• Loudspeaker and loudspeaker line monitoring without additional cabling
• Open-circuit fault detection
• Compatible with 100 V and 70 V loudspeaker lines
• Powering of the supervision-board from the power amplifier
• Communication is not affected by the audio signals on the loudspeaker line