MONO OPERATION
minimum impedance of 2 ohms
woofer
OPERATION
Automatic Turn-On Selection: The ZX series offers three different automatic turn-on modes that can be
selected on the end panel; +12V, DC Offset, and Audio. Using either the DC Offset or Audio mode causes the
REM terminal to have +12V out for turning on additional amplifi ers.
• Remote Turn-On: Set the switch to +12V to use the remote turn-on lead from your source unit. Run 18
gauge wire from the Remote Turn-On Lead on your source unit to the terminal labeled REM between the
amplifi er's positive and negative power terminals. This is the preferred automatic turn-on method.
• DC Offset Turn-On: If Remote Turn-On is not an option, the next best setting is DC Offset. The DC Offset
mode detects a 6V DC offset from the HI-Level speaker outputs when the source unit has been turned on.
• Signal Sense Turn-On: The Audio setting is the fi nal alternative for Automatic turn-on. This is a Signal Sense
turn-on method that detects the incoming audio signal from your source unit and automatically turns on the
amp. This turn-on method will not work properly if the input gain control is not set appropriately.
4
2010 ZX 300.1 400.1 500.1 750.1 RevC.indd 4
2010 ZX 300.1 400.1 500.1 750.1 RevC.indd 4
AUTO
INPUT
L
TURN ON
SENSITIVITY
+12V
DC
AUDIO
LO
INPUT
OFFSET
HI
REMOTE BASS
SPKR +
SPKR -
ZX AMPLIFIERS
Autogoods "130"
AUTO
INPUT
L
TURN ON
SENSITIVITY
+12V
DC
AUDIO
LO
INPUT
OFFSET
HI
SPKR +
SPKR -
+
–
signal in
ZX300.1
GAIN
BASS
R
L
R
BOOST
OFF
OUTPUT
ON
R
L
R
GAIN
BASS
BOOST
XOVER
OFF
LO
OUTPUT
OFF
ON
REMOTE BASS
signal out
XOVER
OFF
LO
10/15/2009 10:55:55 AM
10/15/2009 10:55:55 AM