AudioPressBox APB-448 SB Owner's Manual - Page 6

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You can check the result with your headphones plugged in.

7) 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.

8) PFL button

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.

9) Microphone level indicator bar

You can visually monitor the level of each microphone

output signal in 5-segment output indicator bar with signal

clip LED. If this red light is flashing, you should reduce the

gain of the microphone.

10) Gain Reduction indicator bar

If Comp switch is set to ON, you can visually monitor the

level of Gain reduction on this 4-segment indicator bar.

11) 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.

12) Test signal 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.

13) Global group output level indicators

You can check output levels of each group individually

here in 7-segment level indication bar.

14) AFL button

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.

15) Output level knobs

Set output levels to each group individually and adjust

them that they will not reach the higher levels (6 – 12

values) constantly. You can check the levels with the

headphones.

16) Headphones output connector

If you want to monitor the output by your headphones,

you can plug them to this connector (6.3 TRS/Jack stereo

connector).

17) Headphones output level knob

If you have your headphones plugged in, you can adjust

the level of monitoring the output by turning this knob to

set your comfort hearing level. Please be careful when

setting the levels, too high monitoring volumes can

damage your hearing ability!

18) Power ON indicator

When AudioPressBox® is turned on, this indicator lights up.

19) Power switch

With the power switch, you can turn your AudioPressBox®

ON or OFF.