Introduction; Features; Front Panel - A SYSTEMS GA335 User Manual

GA335 / GA460

INTRODUCTION

Congratulations on your purchase of an Asystems GA
series mixer/amplifier. These mixer/amplifiers can mix up
to four or six individual signals with power output rated at
35 or 60 Watts�
The GA series is ideal for small sound reinforcement
systems� An additional zone 2 output with 8 ohm or 600
ohm output connections is included for versatile side fill or
multi-zone operation� Users are able to set priority VOX
operation with a variable threshold control� A phantom
power supply is included for condenser microphones�
A number of stereo RCA connectors with summed inputs
are onboard for inclusion of music sources� A transformer-
isolated output connection is included with 8 ohms, 70V
and 100V line output application possible� Variable bass
and treble controls are available on the master output�

FEATURES

√ Three-channel mixer/amplifier (GA335)
√ Four-channel mixer/amplifier (GA460)
√ Three output operating modes: 8 ohms, 70V and 100V
√ Output power of 35W or 60W (for the GA335 and
GA460 respectively)
√ Wide frequency response of 70 Hz to 18 kHz ±2dB
√ Low distortion and ultra-low noise level
√ Master bass and treble controls
√ Music-On-Hold output connector
√ Balanced channel 1 input
√ Telephone paging output
√ User-controlled VOX priority
√ +15V phantom power for mics
√ Two or three pairs of RCA input connectors
√ Versatile heat and voltage protection for the amplifier
√ Compact design and low weight
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English

FRONT PANEL

1. Input Level Controls
Controls in the input level control for the corresponding
channels�
2. Master Level Control
This controls the final output level before sending to the
output connectors�
3. Master Output Indicators
The green LED above the Master level control will light up
when the output signal exceeds -40dB indicating that a
signal is present� The red LED indicator will light up when
the output signal reaches high peaks with the potential of
causing distortion�
4. Bass Control
Turning to the right will increase the response of low-
frequency signals (100 Hz) in your main audio signal.
Turning to the left will decrease the response of low-
frequency signals�
5. Treble Control
Turning to the right will increase the response of high-
frequency signals (10 kHz) in your main audio signal.
Turning to the left will decrease the response of high-
frequency signals�
6. Power Button and Indicator
This button turns the GA mixer/amplifier on. When the unit
is turned on, the LED indicator will illuminate to indicate as
such. Be sure that the mixer amplifier is turned on after all
other input sources�
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