Yamaha IM8-32, Service Manual

Page: 6 / 307

IM8-40/IM8-32/IM8-24
6
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, -15 dB maximum)
Turn over/roll-off frequency of
shelving: 3 dB 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: 2 pcs
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 3 dB below the clipping level.
GROUP OUT, AUX SEND, MONO OUT
LED Level Meter Post STEREO OUT fader
Pre MONITOR control 4 x 12 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-3-31type
(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
-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 -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 -10 dBu (245 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
600 Ω Lines
600 Ω Lines
600 Ω Lines
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 -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
-66 dBu (0.389 mV) -50 dBu (2.45 mV) -30 dBu (24.5 mV) XLR-3-31 type (unbalanced)
– –
–
–
– –
– –
– – 600 Ω Lines