Bosch PLE‑1MA060‑EU PLE-1MA060-EU 用户手册

Communications Systems | PLE‑1MAxx0‑EU Plena Mixer Amplifier

These Plena mixer amplifiers are high performance,
professional public address units with modern state of the
art features. They are easy to use, taking the complexity
away from the user and putting it where it belongs, inside
the equipment. Providing a crisp call or clear music is as
easy as turning on the radio.
The amplifier is also surprisingly affordable, without
sacrificing features such as ducking, priority and
flexibility.

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.

Input channels 1 and 2 can take priority over all other
microphone and music inputs:

•

Input 1 can be activated by contact closure on the PTT

(push to talk). A 2-tone chime can be configured to

precede an announcement.

•

Input 2 can be switched automatically if a signal is fed

to the input i.e. if someone speaks into the

microphone (VOX activation).

When one or both inputs are configured to have priority,
the amount of attenuation (reduction) of the cinch inputs,
can be set between ‑2 dB (little attenuation) or -∞ dB
(mute). This provides a talk-over or voice-over function.
Input channels 1 and 2 also feature selectable speech
filters to enhance the clarity of announcements.
Music inputs
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.
Personalized settings
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.

▶ 4 microphone/line inputs, plus 3 music source inputs
▶ 100 V and telephone input with priority & VOX
▶ Announcement only output, 3-wire volume override
▶ Voice-activated emergency override
▶ Wide range of power (30, 60 and 120 Watts)
▶ 2-tone chime
▶ Outputs for line out and music only out
▶ Unique easy-to-use intuitive tone controls