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The PB-05 is an automatic microphone gate unit which is based on the
latest optical technology. The PB-05 is plugged between microphone and
cable. It's equipped with an infrared sensor. The PB-05 senses if
someone is in front of the microphone and will switch on the
microphone. The distance can be adjusted between 15cm and 120cm with
the help of a Trim Pot. The microphone will be switched off
automatically if nobody is in front of it. A red status LED indicates
if the microphone is switched on. The PB-05 works with 48 Volt phantom
power. Condensor microphones can be used in connection with the PB-05.
The phantom power passes the microphone. A small push button on the top
allows the user to toggle between "Mic On" and "Optogate Enable". The
PB-05 is ideal for lead and backing vocal mics, acoustical instruments
and talk back mics. The PB-05 is the best and easiest solution for the
most common problems in live applications. It eliminates unwanted
background noise of other instruments into unused microphones on stage.
So, the clarity of the mix and the dynamics will be increased due to
less phase cancellation and background noise. It reduces the possibility
of feedback from unused mics.
The PB-05 is available in 2 versions.
The PB-05M (Mute) has an attenuation of -42 dB in the “Mic Off” position.
The PB-05D (Ducking) reduces the signal by -16 dB, in the “Mic Off” position.
Both units are powered via phantom power, can be used with dynamic or
condenser mics, have an adjustable distance “sensitivity” and have a
bypass switch on top of the unit.
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Size PB-05:
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69mm Länge x 35mm Höhe x 21mm Breite
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Connectors:s
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XLR 3-pin (1 = gnd, 2 = plus, 3 = minus)
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Case construction:
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Aircraft-aluminium, black galvanizedl
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Distance
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Adjustable between 15 - 120 cm (depending of the type of reflection surface)
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Angle
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+ / - 10 degrees
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Switching noise:
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Immeasurable
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Frequency responses
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0 Hz - 30kHz, - 3 dB at 150 Ohm Microfonimpedanz
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Signal noise ratio:
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-114 dB / -122 dB, Mic on / off, 150 Ohm Mic.
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Distortion
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< 0,05 % with 100mV signal
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Delaytime mic on:
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< 0,2 Sec
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Delaytime mic off:
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ca. 1 Sec
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Attenuation "mic on":
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0 dB
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Attenuation "mic off":
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16 dB or 42 dB in connection with 150 Ohm mics, depending of the model
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Nutzbare Mikrofontypen:
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All type of dynamic - and phantom powered mics up to 10 mA current consumption
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Maximum input level:
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3 dB (1,1V)
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Operating temperature:
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0 - 55 degrees Celsius
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Background light range:
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0 - 20000 Lux daylight and 0 - 12000 Lux electric bulblight
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Distance measurement:
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Active infrared reflection principle with 3 bit code
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Power:
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24-48 V Phantompower (passes phantompower to the microphone)
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Current consumption:
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ca. 3.7 mA
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Features
- Turns off your mic automatically via infrared when you are not using it!
- No false audio triggers!
- Set the distance and go!
- Eliminate unwanted sound from going to your mix, monitors, and mains!
- Excellent for in-ear monitors and very loud stage environments!
- Your sound will be better than EVER before!
- Your amps will sound better!
- Your ears and your Audiences will thank you! You will not be able to live without it anymore...
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Optogate PB-05 
