240W Mixer Amplifier with USB/Bluetooth - BOSCH

PLE-1MExxx-3IN Mixer amplifier,USB/BT

• Inbuilt Bluetooth for audio streaming
• Supports audio playback from USB pen drive
• 4 microphone/line inputs, plus music source input
• Optional 2‐tone chime generation for input 1

The Plena Economy mixer amplifiers are 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 crisp and clear announcements and music is as easy as turning on a radio. Offering the essentials of public address in an affordable package.

System overview

The range consists of three mixer amplifiers, which are available in 60, 120, and 240 W. The mixer amplifiers are equipped with an inbuilt music source, which can provide hours of uninterrupted music either through Bluetooth streaming or USB pen drive. They are supplied with an IR remote control for controlling the music source. The units feature four mic/line inputs, 1 BGM and operate in a single zone. To ensure optimum performance, there are no moving parts, such as hard drives that can fail or wear out. The units have a limiter circuit and provide an audio insert feature to use as a pre/power amplifier. The VU meter gives an output level indication.

Functions

Power
The mixer amplifiers come in 60, 120 and 240 W output power. This power is directly available on 100 V constant voltage connections and on a low impedance connection for a 4-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.

Inputs
All mic/line inputs can be switched between microphone level and line level sensitivity. The inputs are balanced, but can be used as unbalanced inputs.
Phantom power can be switched-on to provide power to condenser microphones. Input channel 1 can take priority over all other
microphone, AUX & 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.

Music source and AUX input
The unit has an internal music source and AUX input option. The internal music source plays audio files from an USB pen drive (with a capacity of up to 32GB)or streamed through Bluetooth. The player will automatically search and and play all playable audio tracks from the USB pen drive and has repeat /random/all modes. The following formats are supported: MP3 and
WAV files with bit rates from 32 kbit/s.

Personalized settings
Another useful feature is to indicate preferred settings on the front panel by inserting colored pins at the preset levels of all knobs. One user can make use of silver pins to set the controls as per his convenience. A second user can make use of red pins to set the controls for his particular use.

Output status
An LED VU meter provides output indication. A headphone socket (6.3 mm), 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 excess signal.

Controls and indicators

Front panel

• Power-ON switch with LED indication
• LCD display, USB port, UBS/BT keyboard functions with IR remote sensor
• Four volume knobs for microphone inputs
• Volume knob for AUX input
• Knob for treble level
• Knob for bass level
• Master volume knob
• LED VU meter for master output (LEDs for -18, -12, -6,-3, 0 dB)
• Headphone socket

Back panel

• Four inputs with DIP swicthes
• AUX input
• Pair of RCA connectors for Insert feature
• 100 V and 4-ohm loudspeaker outputs
• A/c socket with fuse holder

Certifications and approvals

Technical specifications