Bosch Plena 120W Mixer Amplifier is a high performance, professional P.A. unit with modern state of the art features. Ideal solution for providing background music to clubs, cafes, restaurants, schools and more. Plug an iPod or MP3 player, connect a cd player and 4 mics if you wish. Backed with a 3 year Bosch factory warranty. Can be used in both 100V line or 8 Ohms PA systems.
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Microphone and line inputs
All Mic/line inputs can be switched between microphone level and line level sensitivity. The inputs are balanced but can be used unbalanced. Phantom power can be switched on to provide power to condenser microphones.
Separate music inputs are available with their own input selector and volume control. The user can choose a music source like a CD player or radio (like the PLN-DVDT), and set the level of music.
More unique features are available such as detachable labels where the user can write the names for inputs, music sources and zones. These labels can then be mounted on the front, protected by the clear window. Another useful feature is to indicate preferred settings on the front panel by inserting colored pins at the preset levels of all knobs. You can then instruct a user to set all the controls to the silver pins to configure the system for their particular use. A second user can set all controls to the red pins for their configuration.
A telephone / 100 V emergency input with VOX activation is provided for easy integration with another PA system or a telephone paging system. It has its own preset volume control and overrides all other inputs, including call station and inputs 1 and 2. The unit also has a line output to add amplifiers for larger systems with more output power. This output can be switched to music only, for example, so that music on hold can be provided for the telephone system.
The mixer amplifiers come in 30, 60 and 120 Watt output power. This power is directly available on 100 V constant voltage connections and on a low impedance connection for an 8 ohm load. Moreover, the amplifiers have a separate 100 V call-only output channel for addressing areas where only priority announcements are required. The call-only output can also be used for 3-wire remote, volume control override.
An LED VU meter monitors the master output. A headphone socket, below the VU meter, provides the mixer output. For total reliability and ease of use, a limiter is integrated into the output stage to restrict output if the user applies too much signal.
|Operating temperature||-10°C to +45°C|
|Mounting||Stand-alone, 19" rack|
|Loudspeaker output 8 ohm||31V (120W)|
|Loudspeaker output 100V Max / Rated||180W / 120W|
|Emergency / telephone||1|
|Treble Control||Max ±12dB (frequency is setting dependent)|
|Bass Control||Max ±12dB (frequency is setting dependent|
|Distortion||<1% @ rated output power, 1 kHz|
|Frequency response||50 Hz to 20 kHz (+1/-3 dB @ -10 dB ref. rated output)|
|Power consumption||400 VA|
|Inrush current||10.0 A|
|Voltage||230 VAC ±10%, 50/60 Hz (reduced power at lower mains or battery voltage)|
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