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Appendix > Input / Output characteristics
Input / Output characteristics
Analog Input Characteristics
0 dBu = 0.775 Vrms
PAD
Input Jacks
Trim / SW
26 dB
Position
OFF
MIC/LINE 1–
2
ON
HEADSET
-
MIC
OFF
INPUT CH2
GUITAR *5
ON
LINE 3/4
-
LINE 5/6,
-
7/8
*1 "Input sensitivity" is the lowest level that will produce an output of +4 dBu (1.23 V) or the nominal output
level when the unit is set to maximum gain (all level controls are at their maximum position)
*2 1 & Sleeve = GND, 2 & Tip = HOT, 3 & Ring = COLD
*3 Tip = Signal, Sleeve = GND
*4 For CH 1, HEADSET MIC
GAIN
Actual
Load
impedance
Impedance
10
0
3 kΩ
Mics/Lines
10
0
HIGH
MID
1.5 kΩ*4
LOW
10
0
1 MΩ
10
0
HIGH
10 kΩ
LOW
-
10 kΩ
Nominal
Sensitivity
*1
−76 dBu
(0.123 mV)
−30 dBu
(24.50 mV)
50–600 Ω
−50 dBu
(2.451 mV)
−4 dBu
(489.0 mV)
−58 dBu
(0.976 mV)
−48 dBu
-
(3.085 mV)
−38 dBu
(9.757 mV)
−72 dBu
(0.195 mV)
−26 dBu
(38.84 mV)
-
−46 dBu
(3.884 mV)
0 dBu
(0.775 V)
−24 dBu
(48.90 mV)
600 Ω line
−14 dBu
(154.6 mV)
−24 dBu
600 Ω line
(48.90 mV)
78
Input level
Max. before
Nominal
clip
−60 dBu
−50 dBu
(0.775 mV)
(2.451 mV)
−14 dBu
−4 dBu
(154.6 mV)
(489.0 mV)
−34 dBu
−24 dBu
(15.46 mV)
(48.90 mV)
+12 dBu
+22 dBu
(3.085 V)
(9.757 V)
−42 dBu
−32 dBu
(6.156 mV)
(19.47 mV)
−32 dBu
−22 dBu
(19.47 mV)
(61.56 mV)
−22 dBu
−12 dBu
(61.56 mV)
(194.7 mV)
−56 dBu
−46 dBu
(1.228 mV)
(3.884 mV)
−10 dBu
0 dBu
(245.1 mV)
(775.0 mV)
−30 dBu
−20 dBu
(24.51 mV)
(77.50 mV)
-
+10 dBu
-
(2.451 V)
−8 dBu
+2 dBu
(308.5 mV)
(975.7 mV)
+2 dBu
+12 dBu
(975.7 mV)
(3.085 V)
−8 dBu
+2 dBu
(308.5 mV)
(975.7 mV)
Connectors
Combo jack *2
(balanced)
3.5 mm phone
jack for CH 1
HEADSET MIC
(plug-in power /
unbalanced)
Phone jack *3
(unbalanced)
LINE 3/4 phone
jack *3
(unbalanced)
LINE 5/6 RCA pin
jacks and 3.5 mm
phone jack *6
(unbalanced)
LINE 7/8 3.5 mm
phone jack *7
(CTIA)
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