Input specifications 11
MX12/4—Owner’s Manual
■ Input specifications
■ Output specifications
1. Sensitivity is the lowest level that will produce an output of +4 dB (1.23V) or the nominal output level when the unit is set to maximum gain.
2. XLR type connectors and phone jacks (TRS) (T=Hot, R=Cold, S=Gnd) are balanced.
3. Phone jacks are unbalanced.
4. Phone jacks (I/O) (T=OUT, R=IN, S=GND) are unbalanced.
• 0dB=0.775Vrms, 0dBV=1Vrms
1. XLR type connectors are balanced.
2. Phone jacks are unbalanced.
3. ST phone jacks (T=L, R=R, S=GND) are unbalanced.
4. Phone jacks (I/O) (T=OUT, R=IN, S-GND) are unbalansed.
• 0dB=0.775Vrms, 0dBV=1Vrms
Input
connectors
Gain
trim
Input
impedance
Nominal
impedance
Input level
Connector type
Sensitivity
1
Nominal level
Max. before
clipping
MIC INPUT
(1-8)
MAX
MIN
5kΩ 50~600Ω mic
–90dB (24.5µV)
–36dB (12.3mV)
–60dB (775µV)
–16dB (123mV)
–40dB (7.75mV)
+4dB (1.23V)
XLR3-31 type
2
LINE INPUT
(1-8)
MAX
MIN
50kΩ 600Ω line
–64dB (490µV)
–10dB (245mV)
–34dB (15.5mV)
+10dB (2.45V)
–14dB (155mV)
+30dB (24.5V)
Phone jack (TRS)
2
ST INPUT
(9-12)
MAX
MIN
10kΩ 600Ω line
–54dB (1.55mV)
–10dB (245mV)
–34dB (15.5mV)
+10dB (2.45V)
–14dB (155mV)
+30dB (24.5V)
Phone jack
3
RTN (L•R) 10kΩ 600Ω line –12dB (195mV) +4dB (1.23V) +20dB (7.75V)
Phone jack
3
TAPE IN (L•R) 10kΩ 600Ω line –26dBV (50.1mV) –10dBV (316mV) +18dBV (7.75V) RCA pin jack
INS I/O (1-4) 10kΩ 600Ω line –20dB (77.5mV) 0dB (775mV) +20dB (7.75V) Phone jack (I/O)
4
Output connector
Output
impedance
Nominal
impedance
Output level
Connector type
Nominal
Max. before clipping
ST OUTPUT (L•R) 150Ω 600Ω Lines +4dB (1.23V) +24dB (12.3V) XLR-3-32 type
1
GROUP OUTPUT (1-4) 75Ω 600Ω Lines +4dB (1.23V) +20dB (7.75V) Phone jack
2
MONITOR1 OUT 75Ω 600Ω Lines +4dB (1.23V) +20dB (7.75V)
Phone jack
2
SEND MONI1,
EFFECT/MONI2
75Ω 600Ω Lines +4dB (1.23V) +20dB (7.75V)
Phone jack
2
C-R OUT 470Ω 10kΩ Lines +4dB (1.23V) +20dB (7.75V) ST phone jack
3
REC OUT (L•R) 600Ω 10kΩ Lines –10dBV (316mV) +10dBV (3.16V) RCA pin jack
PHONES 100Ω 40Ω Phones 3mW 100mW ST phone jack
INS I/O (1-4) 600Ω 10kΩ Lines 0dB (775mV) +20dB (7.75V) Phone jack
4