Behringer EUROCOM MA6480A Quick Start Manual page 17

32
EUROCOM MA6480A/MA6018/MA6008/MA6000M
EUROCOM MA6480A/MA6018/MA6008/MA6000M Ge tting started
Step 3: Getting Basic Connections
(EN)
started
Before terminating any wire,
turn all equipment off and
disconnect the AC power.
Make all appropriate audio
and power connections to
the MA6000 unit.
On the MA6480A, set the input
sensitivity switches for the
MIC/LINE inputs to the
appropriate position. Select LINE for
line-level signals, MIC for mic-level signals,
or PHTM when using microphones that
require phantom power.
On the MA6008/6018/6000M,
use dip switch #1 for mic/line
selection and dip switch #2 to
supply phantom power.
MA6008/6018/6480A
Amplifier Connections
Ensure the loudspeaker power
requirement does not exceed
the HI-Z amp's available power
output. Add up the total transformer taps of
all the loudspeakers to be powered,
e.g., four 70 V loudspeakers using 10 W
transformer taps require 40 W of power.
Set the HI-Z MODE switch to
either 70 or 100 V to match the
system's loudspeaker
voltage requirement.
Ensure the loudspeaker
impedance does not exceed
(not less than) the minimum
load impedance of the LO-Z amplifier (4 Ω).
For example, two 8 Ω loudspeakers
connected in parallel equal a combined
impedance of 4 Ω.
Volume and Gain
Before powering up, set all
INPUT LEVEL knobs, rear panel
GAIN knobs, and MASTER
VOLUME to the full counterclockwise
(off) position.
Power on the unit.
Slowly raise the rear panel
GAIN control for the
individual input channels
until the green SIG LED illuminates
(does not apply to MA6480A).
Raise the MASTER VOLUME knob
to the 10 – 12 o'clock position.
Slowly raise the front panel
INPUT LEVEL knobs for the
individual input channels.
Adjust the MASTER VOLUME to
the desired overall
listening volume.
Adjust the CHANNEL EQ
knobs to tailor the treble
and bass response of each
individual channel.
Adjust the MASTER EQ knobs on
the front panel to set the overall
system response.
Adjust the BALANCE control to
set the relative volume level
between the 70 / 100 V
loudspeakers and the 4 – 16 Ω loudspeakers
(does not apply to MA6000M).
33
Quick Start Guide
Tel/Page Setup
This 4-pin male Euroblock connector
accepts microphone or line-level signals
and offers selectable phantom power.
Pin 4 provides a control terminal to initiate
a page announcement via contact closure
or signal activation. When the paging input
is activated, it can trigger a pre-announce
tone, override the AUX inputs and/or override
inputs 1-8. The signal can be independently
routed to the Main and/or Zone 2 bus. The
connector has an impedance of 600 Ω and is
shielded from unwanted DC voltage.
Channel Input
Euroblock Connector
This male 5-pin Euroblock connector accepts
microphone or line-level signals. Pin 4
(Control) can be used for multiple purposes,
including:
• Remote volume control - when
switched to RVC, connecting a 10 kΩ
linear potentiometer between this
terminal and the Ground terminal allows
remote control of the volume level of
the channel.
• Forcing the input channel on and causing
other input channels to be muted when
set to force on.
Pin 5 (Direct Out) carries a buffered and
unbalanced split of the input signal after
the input trim control and before the
input equalizer.