Public Address System(PA)
Bosch LBB1938/30, Power Amplifier, 1x480W / Public Address System / PA system
- 480 W power amplifier in a 3U high 19” housing
- EN 54‑16 certified
- 70 V / 100 V and 8 Ohm outputs
- Dual inputs with priority switching
- 100 V input for slave operation on 100 V speaker line
- PRODUCT OVERVIEW
- Technical specifications
The LBB1938/30 is a powerful 480 W power amplifier in a 3U 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 high-performance unit fulfils a wide range of public address requirements at a surprisingly low cost.
Controls and indicators
Front
• Meter (LEDs for -20, -6, 0 dB and Power ON)
• Battery operation indicator
• Overheat indicator
• Air inlet for forced air cooling
Back
• Level control input 1
• Level control input 2
• Power button
• Mains switch
Interconnections
Back
• Priority line input 1 (XLR/balanced)
• Line loop‑through 1 (XLR/balanced)
• Program line input 2 (XLR/balanced)
• Line loop‑through 2 (XLR/balanced)
• Priority controlled loudspeaker output terminals
• 24 VDC power supply terminal
• Three loudspeaker direct output terminals
• Two 100 V slave input terminals
• Input 2 enable control terminal
• Input 1 priority control terminal
• Earth connection screw
• Mains socket