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Connecting an external power amplifier
When connecting an external power amplifier to enhance speaker output, connect the input
jacks of the power amplifier to the PRE OUT jacks of the unit. The same channel signals are
output from the PRE OUT jacks as from their corresponding SPEAKERS terminals.
a F.PRESENCE jacks (RX-A3070 only)
Output front presence channel audio signals or Zone2 audio signals depending on the “Power Amp
Assign” setting (p.142).
b R.PRESENCE jacks (RX-A3070 only)
Output rear presence channel audio signals or Zone3 audio signals depending on the “Power Amp
Assign” setting (p.142).
c FRONT jacks
Output front channel sounds.
d SURROUND jacks
Output surround channel sounds.
e SUR. BACK jacks
Output surround back channel sounds. When using only one surround back speaker, connect the
external amplifier to the SINGLE jack (L side).
f CENTER jack
Outputs center channel sounds.
(Example)
Connecting front speakers via an external power amplifier
About external power amplifiers
We recommend using power amplifiers that meet the following conditions.
With unbalanced inputs
With volume control bypass (or without volume control circuit)
Output power: 100 W or more (6 to 8 Ω)
Caution
To prevent the generation of loud noises or abnormal sounds, make sure the followings before making
connections.
Remove the power cable of the unit and turn off the external power amplifier before connecting them.
When using the PRE OUT jacks, do not connect speakers to the corresponding SPEAKERS terminals.
When using a pre-main amplifier that does not have the volume control bypass, turn up the volume
of the pre-main amplifier enough and fix it. In this case, do not connect other devices (except the
unit) to the pre-main amplifier.
HDMI OUT
ARC
(ZONE OUT)
1
2
HDMI
(1 BD/DVD)
AV 1 AV 2 AV 3 AV 4
(HDCP2.2)
AV 5 AV 6 AV 7
IN OUT
REMOTE
AV 2 AV 3 AV 4
)
COAXIAL
AC IN
FM
ANTENNA
(
4 RADIO
)
OPTICAL
1
2
ZONE OUT/PRE OUT
ZONE 2/
F.PRESENCE
ZONE 3/
R.PRESENCE
SPEAKERS
CENTER FRONT
SURROUND BACK
SURROUND
R.PRESENCE
R
5
6
L R R RL L L R L
SINGLE
ZONE 2/ZONE 3/F.PRESENCE ZONE 2/ZONE 3/BI-AMP
AM
PRE OUT
(REAR)
SUBWOOFER
CENTERFRONT
SURROUND SUR. BACK
(SINGLE) (FRONT)
EXTRA SP2
F.PRESENCE
EXTRA SP1
RS-232C
TRIGGER
OUT
1
2
12V 0.1A
MAX. TOTAL
NETWORK
( 3
NET
)
Y
P
RPB
Y
P
RPB
COMPONENT VIDEO
AV 2
B
AV 1
A
(HDCP2.2)
cba def
The unit (rear)
HDMI
V
2
AV 3 AV 4
(HDCP2.2)
AV 5 AV 6 AV 7
IN OUT
REMOTE
1
2
U
T
3/
NCE
SPEAKERS
CENTER FRONT
SURROUND BACK
R
OUND
R.PRESENCE
L R R RL L L
SINGLE
ZONE 2/ZONE 3/F.PRESENCE
PRE OUT
(REAR)
SUBWOOFER
CENTERFRONT
SURROUND SUR. BACK
(SINGLE) (FRONT)
EXTRA SP2
RS-232C
TRIGGER
OUT
1
2
12V 0.1A
MAX. TOTAL
NETWORK
( 3
NET
)
PRPB
PRPB
N
T VIDEO
MAIN IN
PR
SU
R
FRONT
L
R
L
R
The unit (rear)
PRE OUT (FRONT) jacks
Main input jack
Amplifier with
volume control
bypass
(such as A-S3000)
40


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