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.

Connections

The XLR connectors use the following AES standard:

Pin 1 = Ground (Shield) Pin 2 = Hot (+)

Pin 3 = Cold (–)

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.