Audio Press Box APB-448 SB

Audio Press Box APB-448 SB
28407.20 Lei
*pretul include TVA
La comanda
Audio Press Box
cod produs: APB-448 SB
Descrierea Produsului

Active, portable, 4x MIC/LINE routable Input (A, A+B, B), 48 Line/MIC Outputs,  internal AccuPack 8 hours

A professional portable active press box (Audio Splitter) suitable for both indoorand outdoor press conferences. 
It features 4 MIC/Line Inputs (A,A+B,B) and 48 Line/Mic Outputs. 
Each Output is independet transformer balanced and isolated.
What is more, it can also be used for bilingual conferences as it features 2 separate channels A and B.
Each input can be routed to channel A or channel B or both at the same time.
There is a bus A with 24 Line/MIC outputs and bus B with 24 Line/MIC outputs. 
The APB-448 SB also includes a rechargable AccuPack so it can run on its own up to 8 hours. 
It also serves as a drive unit because it has 4 buffered expander Outputs and can power additional 96 Line/MIC Outputs. 
You can connect any of our expanders to it. 
So with this unit you can route route 4 individual inputs to up to 144 Line/MIC Outputs! 

  • 4 MIC (phantom power) / LINE Inputs – balanced with gain control and 26dB PAD
  • Each Input is routable to A/(A+B)/B Outputs Group
  • 48 High quality independent transformer balanced and isolated outputs
  • Each Output is switchable between MIC or LINE level
  • 2 internal Output Groups: 24x Output A and 24x Output B
  • 2 separate buffered A and B Outputs for driving up to 48 channels of passive
    extenders: APB-024 R-EX, APB-008 IW/OW, APB 008FB, APB P008 IW/OW or
    APB-P112
  • Switchable High-Pass filter for each Input channel
  • Switchable Compressor and Limiter for each Input channel
  • PFL/AFL for each Input/Output channel
  • Constant level Test signal oscillator with no mistake switch operation
  • Headphones control Output for PFL/AFL
  • Li-Ion AccuPack with microprocessor controlled battery management
  • 8 hour full load capacity. Note: AccuPack is placed inside the unit


+48V +48V If you are about to use condenser microphone, turn Phantom power switch ON to feed your microphone with 24/48V. If you use dynamic microphone or microphone with his own power, you can switch this OFF.
PAD PAD If you are using microphone as an input, this button should be set to “Off” position. If you are using input from the mixing console or CD player, please set this switch to “On” position.
BUS Routing switch Each microphone could be routed to 2 separated groups or to both groups at the same time. This is useful, if you have two (or four) lecterns and you want to route signal from each microphone (or group of 2 microphones) to separated tracks. Reporters can edit the recording easily, if they have both lecterns on separated tracks. You can label the outputs in the output extender with names of the lecterns or groups and reporters easily decide which group output they want to use.
AFL AFL For better check your levels, you can isolate output from each group to your headphones. You can check the output levels of each group by hearing. Just push the button and you will hear output from particular group.
PFL PFL To check your levels only for one input, push this button and you can see the level of output for corresponding input. You can easily see if all microphones have the good output levels and identify, if some of the microphones are too loud or too silent in the output.
COMP COMP (Compressor/Limiter operation button) To provide perfect output signal without clipping or distortion, you can switch the Comp button ON. If you switch this OFF, signal in output could contain signal clipping or distortion.
HPF HPF (High Pass Filter) This button helps to avoid distributing low-end rumble like a microphone handling noise or pops. You have 2 options – full range or 160Hz low-cut frequency. The one you choose depends on the sound, you want to filter out.
OSC OSC (Oscillator operation switch) To test signal level, which is coming to the outputs, you can switch this Test 1kHz sine signal oscillator on. After recipients set the levels in their recording devices, you should switch this function OFF. When compressor switch is set to ON, output signal level won’t exceed this maximum output level.
48x TRANSFORMER Transformer Separately transformer isolated outputs.
LI-ION-8H+24V-2 Rechargeable batteries Optional Built-in Li-Ion battery pack with microprocessor controlled battery management, 8 hour working time at full load. No self-discharge and memory effect, always ready to use. Short charging time compared to conventional batteries.
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