PreSonus AudioBox™ iOne 사용자 매뉴얼

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2.0 Hookup 
2.1 
Front-Panel Controls and Connections
AudioBox
 iOne and iTwo 
Owner’s Manual
4
2.0 Hookup
2.1 
Front-Panel Controls and Connections
Microphone/Instrument/Line Inputs. Both channels of the AudioBox iTwo have 
Mic-Line/Instrument combo jacks that accept a ¼-inch TRS or XLR plug. 
 
 
 
 
 
On the AudioBox iOne, Channel 1 offers an XLR jack, and Channel 2 has a ¼-inch 
Instrument jack.
Please Note: As with any audio input device, plugging in a microphone or 
instrument, or turning phantom power on or off, will create a momentary spike in the 
audio output of your AudioBox. Because of this, we highly recommend that you turn 
the input level all the way down before changing connections or turning phantom 
power on or off. This simple step will add years to the life of your audio equipment.
Microphone Inputs. These XLR inputs are equipped with high-headroom 
PreSonus microphone preamplifiers. These preamps work great with all types 
of microphones including dynamic, ribbon, and condenser microphones.
Power User Tip: Dynamic microphones and ribbon microphones (which are a special 
type of dynamic mic) are generally lower-output devices that, with few exceptions, 
require no external power source. Sending phantom power to a ribbon mic that 
doesn’t require it can cause severe damage to the mic—usually beyond repair. 
Condenser microphones are generally more sensitive than dynamic and ribbon 
microphones and typically require external +48V phantom power. Always review your 
microphone’s documentation and follow its recommended operating practices.
Instrument Inputs. These ¼-inch connectors are for use with instruments that don’t 
have internal preamps (guitar, bass, etc.). See Input Source Button for more 
information.
Power User Tip: Active instruments are those that have an internal preamp and a 
line-level output. This type of instrument should be plugged into a line input, rather than 
an instrument input. Plugging a line-level source into the instrument inputs not only risks 
damage to these inputs but also results in a very loud and often distorted audio signal.
Line Inputs. The ¼-inch connectors on the AudioBox iTwo can 
also accept line-level inputs such as keyboards and samplers. 
See Input Source Button for more information.