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Specifications
Owner’s Manual
167
General Specifications
All faders are nominal when measured. (The nominal position is 10 dB lower than the maximum position.)
Output impedance of signal generator: 150 ohms
* IM8-40: 1-40, IM8-32: 1-32, IM8-24: 1-24
Analog Input Specifications
Where 0 dBu = 0.775 Vrms and 0 dBV = 1 Vrms
* Sensitivity is the lowest level that will produce an output of +4dB (1.23 V), or the nominal output level when the unit is set to the maximum level. (All faders
and level controls are at their maximum positions.)
Input HPF
MONO CH INPUT*
80 Hz, 12 dB/oct
Input Equalization
(+15, -15dB maximum)
Turn over/roll-off frequency of
shelving: 3dB below maximum
variable level.
MONO CH INPUT*
HIGH: 10 kHz (shelving)
Hi-MID: 400 Hz-8 kHz (peaking)
LO-MID: 80 Hz-1.6 kHz (peaking)
LOW: 100 Hz (shelving)
ST CH INPUT
HIGH: 10 kHz (shelving)
Hi-MID: 3 kHz (peaking)
LO-MID: 800 Hz (peaking)
LOW: 100 Hz (shelving)
LAMP
IM8-40: 3 pcs, IM8-32/24: 2pcs
XLR-4-31 type, The LAMP voltage is 12 V DC between 3 and 4 pins of XLR-4-31 connectors.
Each lamp can use 5 W max.
Signal Indicator
MONO CH INPUT*
ST CH INPUT 1-4
INSERT OUT
3 points LED meter (PEAK, 0, -20 dB)
PEAK lights if the signal reaches 3dB below the clipping level.
GROUP OUT, AUX SEND, MONO OUT
LED Level Meter
Post STEREO OUT fader
Pre MONITOR control
4x12 points LED meters (PEAK, +10, +6, +3, 0, -3, -6, -10, -15, -20, -25, -30 dB)
USB Audio
USB IN/OUT
Sampling Frequency = 44.1/48 kHz (depending on the PC application)
Compressor
MONO CH INPUT*
Control x 1 (gain/threshold/ratio)
Dimensions
Height: 219 mm, Depth: 739 mm,
Width: 1716 mm (IM8-40), 1471.5 mm (IM8-32), 1227 mm (IM8-24)
Net Weight
51.5 kg (IM8-40), 44.4 kg (IM8-32), 37.8 kg (IM8-24)
Input Connectors
PAD
GAIN
Input
Impedance
Appropriate
Impedance
Sensitivity*
Nominal Level
Max. before
clipping
Connector Specifications
INPUT A (MONO CHs)
IM8-40: 1-40
IM8-32: 1-32
IM8-40: 1-24
0
-60 dB
3 k
Ω
50-600
Ω
Mics
-80 dBu (0.078 mV)
-60 dBu (0.775 mV)
-40 dBu (7.75 mV) XLR-3-31 type (balanced [1=GND,
2=HOT, 3=COLD])
-16 dB
-36 dBu (12.3 mV)
-16 dBu (123 mV)
+4 dBu (1.23 V)
26 dB
-34 dB
-54 dBu (1.55 mV)
-34 dBu (15.5 mV)
-14 dBu (155 mV)
+10 dB
-10 dBu (245 mV)
+10 dBu (2.45 V)
+30 dBu (24.5 V)
INPUT B (MONO CHs)
IM8-40: 1-40
IM8-32: 1-32
IM8-40: 1-24
0
-60 dB
10 k
Ω
600
Ω
Mics/Lines
-80 dBu (0.078 mV)
-60 dBu (0.775 mV)
-40 dBu (7.75m V) TRS phone jack (balanced [Tip =
HOT, Ring = COLD, Sleeve =
GND])
-16 dB
-36 dBu (12.3 mV)
-16 dBu (123 mV)
+4 dBu (1.23 V)
26 dB
-34 dB
-54 dBu (1.55 mV)
-34 dBu (15.5 mV)
-14 dBu (155 mV)
+10 dB
-10 dBu (245 mV)
+10 dBu (2.45 V)
+30 dBu (24.5 V)
INPUT A/B (ST CHs)
-
-34 dB
10 k
Ω
600
Ω
Lines
-54 dBu (1.55 mV)
-34 dBu (15.5 mV)
-14 dBu (155 mV)
Phone jack (unbalanced)
RCA pin jack
+10 dB
-10 dBu (245 mV)
+10 dBu (2.45 V)
+30 dBu (24.5 V)
INSERT IN (MONO CHs)
IM8-40: 1-40
IM8-32: 1-32
IM8-40: 1-24
-
-
10 k
Ω
600
Ω
Lines
-20 dBu (77.5 mV)
0 dBu (0.775 V)
+20 dBu (7.75 V)
TRS phone jack (unbalanced [Tip
= Out, Ring = In, Sleeve = GND])
INSERT IN (AUX, GROUP,
STEREO, MONO)
-
-
10 k
Ω
600
Ω
Lines
-10 dBu (77.5 mV)
0 dBu (0.775 V)
+10 dBu (2.45 V)
TRS phone jack (unbalanced [Tip
= Out, Ring = In, Sleeve = GND])
AUX RETURN 1-4
-
-
10 k
Ω
600
Ω
Lines
-12 dBu (195 mV)
+4 dBu (1.23 V)
+24 dBu (12.3 V)
Phone jack (unbalanced)
2TR IN L/R
-
-
10 k
Ω
600
Ω
Lines
-26 dBV (50.1 mV)
-10 dBV (0.316 V)
+10 dBV (3.16 V)
RCA pin jack
3.5 DIA stereo phone jack
TALKBACK MIC IN
-
-
10 k
Ω
600
Ω
Lines
-66 dBu (0.389 mV)
-50 dBu (2.45 mV)
-30 dBu (24.5 mV) XLR-3-31 type (unbalanced)
