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The LBB 1935/20 is a powerful 240 W power amplifier in a 2U high 19” case for rack mounting or tabletop use. LEDs on the front panel show the status of the amplifier: power, audio output level, and supervised functions. This highperformance unit fulfils a wide range of public address requirements at a surprisingly low cost.
The amplifier is protected against overload and short circuits. A temperaturecontrolled fan ensures high reliability at high output levels and low acoustic noise at lower output levels. An overheat protection circuit switches off the power stage and activates an LED on the front panel, if the internal temperature reaches a critical limit due to poor ventilation or overload. The unit operates both on mains power and on a 24 V battery power supply for emergency backup, with automatic switchover. For emergency and evacuation use, the following functions are monitored: mains presence, battery present, pilot tone presence, amplifier operation.
Front panel LEDs indicate the status of supervised functions. The LEDs of pilot‑tone supervision and battery status can be switched off for general public address use. Failsafe (normally energized) relays are provided for each supervised function. These relays are always active regardless of the switches on the rear panel.
The amplifier has two balanced inputs with priority control, each with a loop‑through facility. This makes it easy to connect remote systems that require priority control. An additional 100 V line input is provided to connect the amplifier to a 100 V loudspeaker line to provide more power to remote locations. Gain or level control is located on the rear of the unit to avoid accidental setting change. A meter with LED‑bar shows the output level.
The amplifier has 70 V and 100 V outputs for constant voltage loudspeaker systems, and a low impedance output for 8ohm loudspeaker loads. The amplifier has two separate priority controlled 100 V outputs for zones that only need announcements made via the priority input, and for zones that will not receive announcements made via the priority input.
What`s in the box?
1 x LBB 1935/20 Power Amplifier
1 x Power cord
1 x Set of 19″ mounting brackets
1 x Safety Instructions
1 x Cable with XLR connector

SKU: LBB1935/20 Categories: ,

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