Operation Manual

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INPUT L+R
Low-level RCA signal input for connection to head-unit pre-out.
INPUT GAIN
Input gain/sensitivity control allowing the matching of the amplifier
input section to the head-unit (pre-out) output voltage.
FILTER FREQ. LPF
Crossover filter frequency control allowing the setting of the
Lowpass cut-off frequency between 40 and 240 Hz.
Note: This control is not active when the amplification mode switch
is in the ''Fullrange'' position!
Amplification Mode Switch
Depending on the selected switch setting the amplifier operates in
Fullrange, Highpass or Lowpass mode.
FILTER FREQ. HPF
Crossover filter frequency control allowing the setting of the
Highpass cut-in frequency between 40 and 240 Hz.
Note: This control is not active when the amplification mode switch
is in the ''Fullrange'' position!
FUSE
Fuses for protection of the amplifier-internal electronics against
overload or faulty operation / wrong manipulation.
+12 V
Power connection terminal to positive terminal of car battery.
REMOTE/REM
Remote switiching contact for the automatic (remote) turn-on /
turn-off of the power amplifier from the head-unit's remote (or
antenna control) lead.
GROUND/GND
Power connection terminal to chassis ground or negative
terminal of car battery (-12 V)
 L  und  R 
Speaker output terminals for one stereo speaker pair or one single
speaker connected in bridged mode (e.g. subwoofer)
In bridged mode the minium speaker impedance is 4 Ohms!
POWER LED
Amplifier status-LED. Lit green when power is on.
PROTECT LED
Lit red when amplifier is in protect mode due to shorted speakers,
overtemperature etc.
B2
CONNECTIONS AND CONTROLS AXTON C209/C409
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C109-509 Manual DEF.indd 28C109-509 Manual DEF.indd 28 15.02.2005 15:30:30 Uhr15.02.2005 15:30:30 Uhr