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Rear Panel Features
and Controls
1. INPUT is a balanced XLR input jack that
accepts mic-level or line-level signals.
2. OUTPUT is a balanced XLR output jack in
parallel with the INPUT jack, allowing the
signal to “loop through” for daisy-chaining
speakers together.
3. LINE/MIC switch for mic-level or line-level
signals at the INPUT.
4. VOLUME control adjusts the input-stage
gain.
5. MUSIC equalization switch ON provides a
low-frequency and high-frequency boost.
6. VOICE equalization switch ON provides a
gentle boost at 3kHz and 6kHz.
7. OPERATE indicator illuminates when the
POWER switch is turned on.
8. LIMITER indicator illuminates when the
limiting protection circuits are activated.
9. POWER switch turns the AC power on and
off.
10. AC OUTLET for connecting AC power to an
additional Mackie Industrial active
speaker system.
11. IEC AC Socket. Connect the detachable
power cord to the socket. The protection
fuse is also contained in the AC socket.
CAUTION: Replace fuse only with the same
type as indicated on the rear panel.
12. Grounding Terminal provides an additional
safety grounding point.
Installation
A 1-3/8" (35mm) socket is provided in the
bottom of the cabinet for mounting the
loudspeaker on a speaker stand.
The ART300A can be suspended with
approved rigging hardware. Always use at
least two M10 threaded inserts located
on opposite sides of the enclosure. The
speaker must be positioned so that the
weight of the enclosure is equally distributed
over the two inserts.
WARNING: Never attempt to suspend the
ART Series loudspeakers by their handles.
Consult a professional rigger or structural
engineer prior to suspending loudspeakers
from a structure not intended for that use.
Always know the working load limit of the
structure supporting the loudspeaker array.
Always make sure that the rigging hardware
minimum rating is at least five times the
actual load.
Connections
The XLR connectors use the following AES
standard:
Pin 1 = Ground (Shield)
Pin 2 = Hot (+)
Pin 3 = Cold (–)