Stereo Monitoring
Visual monitoring of stereo signals may be
accomplished by simply connecting left and right
signal connections to separate channels (ex: left
to channel 1, right to channel 2).
NOTE:
If simultaneous audible monitoring of
stereo signals is required, two MVXA units are
necessary; one for the left signal and the other
for the right signal.
Audio Monitoring
Channel Selector
Audio monitoring of each channel is accomplished
using a rotary knob that selects one channel at a
time. The LED for the selected channel (located
above the bargraph) will light to indicate which
channel is being monitored. The audio path from
input to output is fully analog, providing signal
integrity to the internal speaker; headphone jack,
external speaker, and/or line level device.
Visual Monitoring LEDs
Monitor panels have eight (MVXA-2008) or sixteen
(MVXA-2016) bargraph displays; one for each
channel. Each display uses twelve, high-quality
and oversized LEDs to provide clear identification
and easy readability from a distance. The meter's
dynamic range is from -30 dB to +3 dB.
The bottom ten LEDs are green and have VU
ballistics similar to a typical analog meter.
Monitoring the range from -30 dB to -2 dB.
The top two LEDs are red to indicate peak
response. They correspond to 0 dB and +3 dB to
indicate short input levels that are above the
specified reference level. This provides immediate
visual warning if signal peaks are above the
reference level.
Top Panel
Functional Diagram
For installation convenience,
the MVXA includes a function-
al operation and jumper set-
ting diagram silkscreened on
the top of the unit.
1
3
2
4
5
1 2 3 4 5
Vo l u m e
C o n t ro l
C h a n n e l
S e l e c t
C o n t ro l
Channel Visual Indicator LED's
P h o n e P l u g
( 3 Wa t t s U n bu f f e r e d )
S
+ -
+ - +
Speaker
Out
(3 Watts)
Line Out
Power
15 VAC
- 2
- 5
- 7
- 9
- 1 3
- 1 6
- 1 9
- 2 2
- 2 5
- 3 0
+ 3
0
Made in
USA
Peak Response
LED Driver
VU Response
C h a n n e l
Au d i o
S e l e c t
Audio
Amp
IN
IN
OUT
d B
d B
R e d
L E D ' s
G r e e n
L E D ' s
B l u e Pow e r L E D
-
1601 Jack McKay Blvd. / Ennis Texas 75119 U.S.A.
www.Atlas-Sound.com Tech Support: 1-800-876-3333
A c t i v e M o n i t o r Pa n e l
OUT
C h a n n e l Au d i o S e l e c t
1
4
5
3
2
Channel 1-8
or
Channel 1-16
G r e e n L E D
M V X A - 2 0 0 8
( 8 C h a n n e l )
M V X A - 2 0 1 6
( 1 6 C h a n n e l )
WARNING! Before using headphone adjust volume.
Headphone jack disengages speaker.
Speaker/
Headphone
Disconnect
25V
70V
(Default Setting)
100V
Line Level
Jumper Setting
1 & 2
3 & 4
None
4 & 5
Reference Voltage
25 Vrms
70 Vrms
100 Vrms
1 Vrms
Power Ref. into 8 ohms
78 Watts
613 Watts
1250 Watts
0.13 Watts
Power Ref. into 4 ohms
156 Watts
1225 Watts
2500 Watts
0.25 Watts
1 2
N o n e
3 4
4 5
WA R N I N G !
Place jumpers
lengthwise only as
shown in these
diagrams!
Jumpers must be
adjusted before
applying power!
Set Each
Channel's
0 dB Reference
Level
ATLAS SOUND
®
Volume Knob
Adjusts the output volume to the internal speaker,
headphone jack, and/or external speaker. (The
external line level output is not affected by this knob).
NOTE:
When using headphones for audible
monitoring, make sure you adjust completely
down (counter clock wise) and then adjust volume
up accordingly.
A t l a s S o u n d
5
