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Bosch PLE-2MA240-EU เครื่องขยายเสียง มิกซ์เซอร์แอมป์ ระบบเสียงประกาศ สาธารณะ โวล์ทไลน์ ,2 โซน,2 ZONE,2 Channel 240 W. Mixer Amplifier ราคาประหยัด

Description

 

The Plena product range

 

The Plena Mixer Amplifier is part of the Plena product

 

range. Plena provides public address solutions for places

 

where people gather to work, worship, trade, or relax. It

 

is a family of system elements that are combined to

 

create public address systems tailored for virtually any

 

application

 

The Plena product range includes:

 

• mixers

 

• preamplifiers

 

• power amplifiers

 

• a music source unit

 

• a digital message manager

 

• a feedback suppressor

 

• call stations

 

• an All-in-One system

 

• a voice alarm system

 

• a timer

 

• a charger

 

• a loop amplifier

 

The various elements are designed to complement each

 

other thanks to matched acoustical, electrical and

 

mechanical specifications.

 

Contents of box

 

The packaging box contains the following contents:

 

• PLE-2MA120-EU, or PLE-2MA240-EU

 

• Labels and colored pins for indicating favorite

 

settings

 

• Power cord

 

• Plena Bonus CD

 

• Mounting brackets (LBC 1901/00)

 

The Plena Mixer Amplifier

 

The Plena Mixer Amplifier is a high performance,

 

professional public address unit for mixing up to six

 

separate microphone/line signals, and any one of three

 

separate music signals. For a schematic overview of the

 

Plena Mixer Amplifier, see figure 2.1 on the next page.

 

The volume of each microphone/line signal can be

 

individually adjusted to obtain the required mix; the

 

mixed output is controlled via the master volume

 

control and separate high/low tone controls.

 

The unit is easy to use, and provides a crisp call or clear

 

music. The amplifier also has enhanced features such as

 

ducking level control, priority, labelling, and setting

 

indicators.

 

All Microphone/line inputs can be switched between

 

microphone level and line level sensitivity. The inputs

 

are balanced but can also be used unbalanced. Phantom

 

power can be selected via a DIP switch 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 a PTT

 

(push to talk). A chime can be configured to precede

 

an announcement.

 

• Input 2 can be switched automatically if a signal is

 

available at the input, for example. if someone

 

speaks into the microphone (VOX activation).

 

A telephone/100 V emergency input with VOX

 

activation is also provided for easy integration with

 

another PA system or a telephone paging system. It has

 

its own volume control and overrides all other inputs,

 

including the call station and inputs 1 and 2.

 

The unit also has a line output to add amplifiers for

 

larger systems that require 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. Loop through input and output connections

 

enable external sound processing equipment (for

 

example, an equalizer or Plena feedback suppressor) to

 

be connected between the preamplifier and the power

 

amplifier stages. A feedback suppressor can ensure

 

feedback-free, clear speech for all microphones.

 

Users can create custom labels for inputs, music sources,

 

and output zones. These labels can be attached to the

 

special holders at the front of the mixer amplifier.

 

Colored pins can also be inserted at various positions

 

around the volume and tone dial controls to indicate

 

favorite settings for a particular application