Electro-Voice® ZxA1 Owner’s Manual 9
Amplifier Controls (cont’)
MASTER
Level control for adjusting the power amp’s overall amplification. The
level control affects the volume of the line input and microphone input. To
prevent distortion and clipping of pre-linked mixing consoles, the control
should generally be set to a value between 0dB and +6dB.
LIMIT
The LED brief blinking indicates that the power amplifier is operated at
its limits. Short-term blinking is uncritical, because the integrated limiter
keeps distortion under control. Constant lighting of the LED indicates that
the sound is negatively affected. Reducing the output volume is strongly
recommended.
WITH SUB/FULLRANGE
When depressed, activates a 100 Hz highpass for use with a subwoofer,
or if the ZxA1 is used as a floor monitor. A pen or paperclip is needed to
depress the switch to WITH SUB mode.
MASTER OUT
Output connector to send the signal to another speaker or subwoofer.
The output is the sum of both the MIC IN and LINE IN.
LINE IN
Electronically balanced input for the connection of high-level signal sourc-
es like mixing consoles or signal processors. Connections can be estab-
lished using 1/4” TRS or XLR-type connectors.
MIC
Level control for adjusting the microphone input level independent of the
master level.
MIC IN
XLR input for low level signals like microphones. The MIC IN and LINE IN
may both be used at the same time as a 2-channel mixer.
POWER
AC switch for switching the ZxA1’s power ON or OFF. The LED lights
after turning the power ON. If the LED is not lit upon turning the power on,
make sure that the AC cord is correctly connected and the outlet is prop-
erly working.
MAINS IN
AC connection is established via an IEC-connector. A 10’ (3m) long AC
cord with fitting IEC-plug is supplied. For 120V operation, the AC voltage
must be 95V - 132V. For 230V operation, the AC voltage must be 190V
- 264V. Locking IEC power cords may also be used.
Figure 8:
ZxA1 Amplifier Controls