Yamaha F12M Owner's Manual - Page 3
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Connection example
Connections
Stand alone
1 Use as full-range
speaker system
2 Use as bi-amp
speaker system
Use combined with subwoofer
1 2-way crossover
2 3-way crossover
Speaker system and Neutrik NL4FC connector connections
1+
1–
Neutrik NL4FC connector
Bi-amp drive
The F12/F12M/F15/F25 also support bi-amp drive.
FULL-RANGE
PIN
1±=INPUT
2±=N.C.
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Mixer
HF
Mixer
LF
Crossover
1.4 kHz (24 dB/oct., Gc=–3 dB)
HF
Mixer
LF
Crossover
80 Hz (18 dB/oct., Gc=–6 dB)
HF
Mixer
LF
SLF
Crossover
LF/HF; 1.4 kHz (24 dB/oct., Gc=–3 dB)
SLF/LF; 80 Hz (18 dB/oct., Gc=–6 dB)
2–
Full-range operation
1+
+
2+
1–
–
2+
2–
For bi-amp drive, switch the mode switch from FULL-RANGE to BI-AMP with a
BI-AMP
flat-bladed screwdriver.
PIN
Caution: • Do not switch the mode switch during operation.
1±=L.F.
2±=H.F.
• SPEAKER SYSTEMS: F12/F12M/F15/F25
• SUBWOOFER: F28
Power amp
Polarity
Reversed
Power amp
Normal
Power amp
Polarity
Normal
Power amp
Normal
Power amp
Polarity
Reversed
Power amp
Normal
Power amp
Normal
Power amp
Bi-amp operation
1+
LF+
1–
LF–
2+
HF+
2–
HF–
Full-range position
F12/F12M/
F15/F25
Bi-amp position
F12/F12M/
F15/F25
Full-range position
F12/F15
F28
Bi-amp position
F12/F15
F28
Subwoofer
1+
+
1–
–
2+
2–
3