TOA Electronics A-9120S Stereo Amplifier User Manual


 
123
25. LEVEL DIAGRAM
M-9000
A-9060DH/9120DH/9120DL
SLOT
ADC
MODULE SLOT
ANALOG INPUT
ADC INPUT
Clipping Level
Reference Level
DSP
Digital Domain
–10 dB ATT
0 dBFS = 1 V
DAC
SPEAKERS
LPF
VOLUME
PRE
AMP
OUT 1
H
H: Hot
C: Cold
E: Earth
H: Hot
C: Cold
E: Earth
C
E
PRE
AMP
OUT 2
PRE AMP
OUT 1
PWR AMP
IN 1
PRE AMP
OUT 2
PWR AMP
IN 2
RELAY
RELAY
H
C
E
PRE
AMP
OUT 2
H
C
E
OUTPUT
Analog
FADER
ATTENUATION
ONLY
AMPLIFY
ONLY
OUTPUT
Digital
FADER
INPUT
Digital
FADER
(dB)
+10
(dBV)
+40
+30
+20
+10
0
–10
–20
–30
+9
+8
+7
+6
+5
+4
+3
+2
+1
0
–1
–2
–3
–4
–5
–6
–7
–8
–9
–10
–67
–68
–69
–70
OFF
(dB)
+10
+9
+8
+7
+6
+5
+4
+3
+2
+1
0
–1
–2
–3
–4
–5
–6
–7
–8
–9
–10
–67
–68
–69
–70
OFF
(dB)
(dB)
+10
+9
+8
+7
+6
+5
+4
+3
+2
+1
0
0
–1
–2
–3
–4
–5
–6
–7
–8
–9
–10
–67
–68
–69
–70
OFF
CROSS
POINT
Digital
FADER
0 dBFS = 2 V
(0 dB Gain)
(+14 dB Gain)
(+14 dB Gain)
NE5532
NE5532
(+14 dB Gain)
(+14 dB Gain)
NE5532
POWER
AMP
POWER
AMP
NE5532
LPF
(0 dB Gain)
MIXOUT
–14 dBV
(200 mV)
(3.16 V)
+10 dBV
(1 V)
0 dBV
(100 mV)
–20 dBV
PRE OUT
SPEAKER OUTPUT
(10 V)
+20 dBV
70 V
(70 V)
+37 dBV
25 V
(25 V)
+28 dBV
60 W
4 Ω
(15.5 V)
+24 dBV
120 W
(22 V)
+27 dBV
(1 V)
0 dBV
POWER AMP
INPUT
(1 V)
0 dBV
(2 V)
+6 dBV
(200 mV)
–14 dBV
DSP INPUT DSP OUTPUT
DAC OUTPUT
(2 V)
+6 dBV
(200 mV)
–14 dBV
VOLUME OUTPUT
(2 V)
+6 dBV
(200 mV)
–14 dBV
LPF OUTPUT
&
SLOT MIX OUT
MIXER mode
ONLY
FADER MARGIN
0 dBFS
10 dB
10 dB
FADER MARGIN
10 dB
10 dB
FADER MARGIN
10 dB
10 dB
–20 dBFS
0 dBFS
–20 dBFS
(316 mV)
–10 dBV
L
LOW
COM
HIGH
R
L
R
AIN
DIN
DIN
DOUT
OUT 1
+
+
OUT 2
A-9060S/9120S/9240SH
PRE AMP
OUT 1
PWR AMP
IN
RELAY
(+14 dB Gain)
(+14 dB Gain)
NE5532
POWER
AMP
NE5532
SPEAKERS
OT-less model: A-9240SH CU
70 V
+
+
SPEAKERS
70 V
25 V
8 Ω
COM
70 V
OT
25 V
8 Ω
COM
TRANS IN
DIRECT
E
With OT model:
A-9060S CU, A-9120S CU
70 V Hi-Z BTL POWER AMP (gain: +37 dB): A-9060DH CU, A-9120DH CU
Low-Z Single-END POWER AMP (gain: +27 dB): A-9120DL CU
Model:
A-9060S CU
A-9120S CU
A-9240SH CU
Gain:
24 dB
27 dB
37 dB
Single-END
Single-END
70 V Hi-Z BTL