เครื่องเสียง เพาเวอร์แอมป์ มีปรีแอมป์ในตัว BOSCH PLE-1ME240-3AP 240 Watt Micer Amplifier whith USB & Bluetooth เครื่องขยายเสียง 240 วัตต์ รองรับสัญญาณบลูทูธ ยูเอสบี 

 **รุ่นใหม่

- Inbuilt Bluetooth for audio streaming
- Supports audio playback from USB pen Drive
- 4 microphone/line inputs, plus music source input
- Insert feature to use as a pre/power amplifier
- Optional 2-tone chime generation for input 1
 
 
This PLENA Economy mixer amplifier is a professional public address unit with modern state‑of‑the‑art features. It is 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 mixer amplifier is equipped with an inbuilt music source, which can provide hours of uninterrupted music either through Bluetooth streaming or USB pen drive.  It is supplied with an IR remote control for controlling the music source. The unit features four
mic/line inputs, 1 BGM and operates in a single zone. To ensure optimum performance, there are no moving parts, such as hard drives that can fail or wear out. The unit has a limiter circuit and provides an audio insert feature to use as a pre/power amplifier. The VU meter gives an output level indication.
 
 
Functions
 
Power
 
     The mixer amplifier has an output power of 60 W. This power is directly available on 100 V constant voltage connections and on a low impedance connection for a 4-ohm load. Moreover, the amplifier has 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 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.