-2-
R
L
R
Audio/Video Receiver
LFE-MONO OUT
LOW INPUT
A-409
Audio/Video Receiver
PRE OUT FRONT
C
A
Audio/Video Receiver
LFE-MONO OUT
Stereoamplifier
PRE OUT
LOW INPUT
A-409
L
R
L
R
Preamplifier
OUTPUT
D
E
B
LOW INPUT
A-409
LOW INPUT
A-409
L
R
L
R
LOW INPUT
A-409
L
R
L
R
Subwoofer combinations
All passive subwoofers with minimum impedance of 2 ohms can be driven. The A-409 has
exeptionally strong deep bass power and must be adjusted to the power rating of the subwoofer.
Subwoofer connection with these steps
1. POWER at OFF, all knobs far left, HIGH CUT far right
2. LOW INPUT connect as sketches A to G. B is useful if the Subwoofer input
signal is too low. C is requested if SAT OUT = Satellite output signal is needed. At F and
G the level is only adjustable at A-409.
H and J show the connection to a separate amplifier for satellite speakers.
G
L
R
L
R
Stereoamplifier
TAPE REC
L
R
L
R
Taperecorder / CD
OUTPUT
F
LOW INPUT
A-409
LOW INPUT
A-409
J
L
R
L
R
A-409
SAT OUT
L
R
L
R
A-409
SAT OUT
H
Stereoamplifier
MAIN IN or AUX
Poweramplifier
INPUT
3. If RCA connection is not possible connect as sketch K.
4. SUBWOOFER OUTPUT connect to subwoofer speaker as sketches L = total impedance
2 - 8 ohms, M = total impedance 4 - 8 ohms, N = total impedance = 2 - 4 ohms. The amplifier
delivers the highest power at 2 ohms. The sound and overload safety are the best at 8 ohms.
A-409 HIGH INPUT
Stereo amplifier speaker output
4 - 8
Ù
N
-
+
-
+
-
+
-
+
2 - 8
Ù
-
+
-
+
4 - 8
Ù
+
-
2 - 4
Ù
-
+
-
2 - 4
Ù
+
-
+
-
-
+
+
A-409
SUBWOOFER OUTPUT
RIGHT
A-409
SUBWOOFER OUTPUT
A-409
SUBWOOFER OUTPUT
LEFT
K
L
M
-
+
-
+
