Low Impedance Loudspeakers; Mains Connection - Bosch LBB 1903/10 Installation And Operating Manual

Plena Mixer Amplifier | Installation and Operating Manual |

4.8.2Low impedance loudspeakers

Connect low impedance loudspeakers to the 8 Ohm/0 terminals. This output can deliver the rated output power
into an 8 Ohm load. Connect multiple loudspeakers in a series/parallel-arrangement to make the combined
impedance 8 Ohm or higher. Check the loudspeaker polarity for in-phase connection. Ensure that the jumper(s) for
loudspeaker voltage selection is / are properly set (see §2.5).

4.9 Mains connection

Figure 4.11
Use the supplied mains cord to connect the system to the mains supply.
Note
If necessary set the switch 115/230 V to the required voltage using a sharp object, e.g. a small screwdriver.
Bosch Security Systems | 2003-09 | 3922 988 92883en
External settings and connections
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