Owner`s manual

Electro-Voice ZxA1 Series Owner’s Manual
12
ZxA1-Sub Amplifier Controls
LIMIT
The LED brief blinking indicates the power amplifier is operated at its limits. Short-term blinking
is not critical because the integrated limiter keeps distortion under control. Constant lighting
of the LED indicates the sound is negatively affected. Reducing the output volume is strongly
recommended.
LEVEL
Level control for adjusting the volume of the subwoofer. The level control affects the volume of
both Channels A and B.
BOOST
The BOOST switch controls the low-frequency extension of the subwoofer. NORMAL works best
when the subwoofer is used under normal applications. LOW-END BOOST provides additional
low-frequency extension and works best for applications requiring enhanced bass performance.
POLARITY
The POLARITY switch controls the acoustic polarity of the subwoofer. When using with a ZxA1
and in most applications, the switch should always be set to NORMAL. If the bass output is low
when using with other loudspeaker systems and subwoofers, try setting the switch to REVERSE
POLARITY.
XLR INPUT
XLR input connector to receive the signal from another speaker or subwoofer.
XLR OUTPUT
XLR output connector to send the signal to another speaker or subwoofer.
POWER
AC switch for switching the ZxA1-Sub’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 the AC cord is correctly
connected and the outlet is properly working.
MAINS IN
AC connection is established via an IEC-connector. A 10 ft (3 m) long AC cord with fitting
IEC-plug is supplied.
LIMIT
LOW-END BOOSTNORMAL
REVERSE POLARITYNORMAL
POWER