Filter
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10
9. BLOCK DIAGRAM
8. OUTPUT EQ CHARACTERISTIC
1
A
2
B
High-pass filter
(180Hz,12dB/Oct.)
Low-pass filter
(7kHz,12dB/Oct.)
Equalizer
Out
Compressor
(Limiter)
Control
Release
Time
Equarizer Control
63Hz – 16kHz
Bridging In/Out
–20dBV, 3.3kHz
0 dBV = 1 V = approx. 2 dBm
Mute
Compressor
(Limiter)
off
Thermostat 105°C
OT
PT
Power
Amp.
COMP.
EQ
Low-cut
(60Hz,6dB/Oct.)
Power
Indicator
Output
Fuse
Peak
Indicator
Relay
Relay
Master
Volume
Control
Speaker
Output
Terminal
Balanced
Transformer
Output
8Ω, 25V, 70V
Unbalanced
Direct Output
4Ω
Protecting Circuit
• Output Muting
• DC Drift
AC
Fuse
Power
Switch
250V
1A
+24V DC
+24V DC
#1
#5
#6
Module
Input Ports
–20dB V
(100mV)
10kΩ
+Vcc
–Vcc
AC 120V
60Hz
In
on
off
on
off
+12
dB
+10
+8
+6
+4
+2
0
–2
–4
–6
–8
–10
–12
20 50 100 200 500 1k 2k 5k 10k 20k Hz