Edirol R-4 Manual De Usuario

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10
 
Introducing the R-4
 
fig.panel-1.eps_50
 
Hold switch [HOLD]
 
By selecting the 
 
HOLD ON
 
 position, you can disable the panel buttons so that unwanted operations will not 
occur if a button is pressed accidentally.
However, even if this switch is set to HOLD ON, the 
 
phantom power switches
 
,
 
 limiter switch
input level select switches
 
,
 
 Input level knobs
 
, and 
 
Monitor level knob
 
 will still be 
operable.
 
Phantom power switches [PHANTOM POWER]
 
These switch the phantom power on/off for the XLR type connectors of the combo input jacks located on 
the right panel. Since separate switches are provided for channels 1/2 and channels 3/4, you can turn 
phantom power on/off separately for these channels.
 
fig.jack-type
 
* Always turn the phantom power off when connecting any device other than 
condenser microphones that require phantom power. You risk causing damage 
if you mistakenly supply phantom power to dynamic microphones, audio 
playback devices, or other devices that don’t require such power. Be sure to 
check the specifications of any microphone you intend to use by referring to 
the manual that came with it.
This instrument’s phantom power: 48 V DC, 8 mA Max
(total of all channels must be 25 mA or less)
 
Limiter switch [LIMITER]
 
This is an on/off switch for an input level limiter in the analog circuitry.
When the input level is too high, the limiter compresses the input level appropriately to prevent distortion.
The limiter switch turns limiting on/off for all channels 1–4 together. However, the input level is detected 
separately for each channel. You cannot turn the limiter on/off separately for each channel.
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5
XLR plug
TRS phone
plug
 (balanced)
Phone plug
(unbalanced)
6
R-4_e.book 10 ページ 2005年2月10日 木曜日 午後3時36分