Bosch Appliances Car Amplifier PLE-2MA120-EU User Manual

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Bosch Security Systems | 2007-10 | PLE-2MA120-EU,  PLE-2MA240-EU en
Plena Mixer Amplifier | Installation and User Instructions | Operation
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5.2 Microphone/line 
controls
Use the volume controls (9) to individually control the 
sound level of microphone/line inputs 1 through 6.
 
5.3 Music 
controls
5.3.1
Source selection
Use the music source selector (11) to select one of the 
connected music sources.
5.3.2
Volume control
Use the music source volume control (12) to control the 
sound level of the selected music source.
5.4 Tone 
control
5.4.1
Introduction
The unique tone controls provide separate control for 
mic/line inputs and music inputs so that the voice on 
the microphones can be specifically optimized for 
excellent speech or singing. Correspondingly, the tone 
controls for background music provide the most 
appropriate music reproduction.
The tone controls are not standard bass and
treble controls: they can be used as a traditional tone 
control with high and low control, but also have a 
powerful contour that addresses problems found in real 
situations.
5.4.2
Microphone/line tone control
The tone control for the microphone and line inputs 
boosts warmth in voices without boosting rumble, and 
cuts rumble without loosing warmth in the low 
frequencies. In the high frequencies, the tone control 
boosts sparkle without adding sharpness, but when 
cutting is first, cuts harshness and sharpness without 
reducing clarity.
Use the Hi (high) and Lo (low) tone controls (see 
figure 5.2, numbers 3 and 10) to collectively change the 
tone of microphone/line inputs 1 through 6. 
5.4.3
Music tone control
The tone control for the music inputs boosts deep bass 
first without making the sound boomy, and cuts rumble 
without loosing warmth in the low frequencies. In the 
high frequencies, the tone control is similar to the 
microphone inputs, with slightly different frequencies to 
suit music reproduction. 
Use the Hi (high) and Lo (low) tone controls (see 
figure 5.2, numbers and 13) to change the tone of the 
selected music source.
Note
Users can create custom labels for the: 
microphone/line inputs, description of the music 
sources, and audio output zones 1 and 2. These 
labels can be attached to the mixer amplifier at 
position numbers 2, 4, and 6 (see figure 5.2). 
Colored pins can also be inserted at various 
positions around the dial controls to indicate the 
favorite settings for a particular application.
figure 5.2: Front panel
B
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