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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