13
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Block Diagram
KAX-5000
KAX-3500, KAX-2500
CHANNEL A
[BRIDGE]
[PARALLEL]
INPUT
CHANNEL B
BA
State variable
Active filter
ON
OFF
YAMAHA
SPEAKER
PROCESSING
State variable
Active filter
BA
HPF
LPF
CHANNEL A
ATT
OFF
Limiter
Limiter
INV
Temperature
Sensor
(Heat Sink)
Protection
Circuit
CLIP
CLIP
Ach Power Amp
Bch Power Amp
SIGNAL
PROTECTION
TEMP
SPEAKERS
CHANNEL A
3
3
1
1
2
2
1+
1+
1-
1-
2-
2-
2+
2+
A+B BRIDGE
CHANNEL B
SIGNAL
YAMAHA
SPEAKER
PROCESSING
CHANNEL B
ATT
PARALLEL
BRIDGE
STEREO
HPF
Frequency
[25 Hz-150 Hz]
POWER
FAN
+B
E
-B
+24
-24
E
POWER CIRCUIT
Frequency
[25 Hz-150 Hz]
OFF
LPF
POWER SW
