Technical data:
AC supply 230 V / 50 Hz or 110 V / 60 Hz according to back side printing
internal power supply with 40000 uF storage capacitance
protection circuits against overheat and shortcut with speaker relay / breaker
damping factor at 8 ohms 250
output power at total distortion level 0.02 % 170 watts / 8 ohms
output power at total distortion level 0.02 % 250 watts / 4 ohms
output power at total distortion level 0.02 % 400 watts / 2 ohms
output power at total distortion level 2 % 280 watts / 4 ohms
frequency response subwoofer with subsonic filter at 15 Hz 15 -150 Hz / -1 dB
frequency response satellite output 50 - 40000 Hz -1 dB
signal-noise ratio over 95 dB
RCA low input sensitivity 0.1 volts / 10 ohms
speaker high input sensitivity 1.2 volts
high cut frequency variable 40 - 150 Hz / 24 dB
bass boost variable 0 to +6dB
bass boost frequency variable 20 - 55 Hz
equalizer decrease variable 0 to -6 dB
equalizer decrease frequency variable 22 - 80 Hz
subsonic filter variable 15 - 40 Hz / 24 dB
phase shift variable 0 - 270°
satellite high pass variable 50 - 150 Hz / 24 dB
satellite output signal +3 dB / 47 k ohms
standby automatic off without signal after 30 seconds
standby power consumtion max. 10 watts
max. power consumption 700 watts
width x height x depth / mm 425 x 100 x 240
weight 8 kg
Subwoofer combinations
All passive subwoofers with minimum impedance of 2 ohms can be driven. The A-400 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-400.
H and J show the connection to a separate amplifier for satellite speakers.
R
L
R
Audio/Video Receiver
LFE-MONO OUT
LOW INPUT
A-400
Audio/Video Receiver
PRE OUT FRONT
C
A
Audio/Video Receiver
LFE-MONO OUT
Stereoamplifier
PRE OUT
LOW INPUT
A-400
L
R
L
R
Preamplifier
OUTPUT
D
E
B
LOW INPUT
A-400
LOW INPUT
A-400
L
R
L
R
LOW INPUT
A-400
L
R
L
R
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