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