OSD NERO ARC 4/6/8/SUB - Indoor/Outdoor Pendant Speaker Manual

Also See for NERO ARC 4:

Install manual (5 pages)

Table of Contents

Contents

1 Preparation
2 Introduction
3 Included
4 Hanging Information
5 Set Up & Operation
6 Standard 8 Ohm Application
7 70V Application
8 Specifications
9 Troubleshooting
10 Documents / Resources
- 10.1 Download manual

OSD NERO ARC 4/6/8/SUB - Indoor/Outdoor Pendant Speaker Manual

Preparation

Tools For Installation

Pencil
Wire Cutter
Safety Eye Wear
Drill
Phillips Screwdriver
Gloves
Tape Measure
Utility Knife

Speaker Wire Guide

18AWG minimum - for distances up to: 10 ft
16AWG - from: 10 to 50 ft
14AWG - from: 50 to 100 ft

Considerations

Where is the best place to install the speakers?
Where do the speakers sound the best?
Separate the speakers 6 - 10 feet apart.

Introduction

The Nero-ARC Series Products are designed for high ceilings and open space environments. Featuring silk dome tweeters and Graphite woofers with an aluminum rust resistant grille. A UV resistant enclosure makes it ideal for outdoor applications as well. The Nero-ARC Series also comes with a built-in 6 position tap for 8 Ohm and 70/100V set-ups.

Included

Hanging Information

Buckle part to fix connection cable

warning Make sure the speaker is properly secured to the ceiling / building's structure. Please use the proper screws, bolts, or anchors (not included). Failure to do so may cause the speaker to become unsecured & cause potential damages / injuries.

Set Up & Operation

Nero-ARC Series Products are designed to hang from the ceiling. A safety cable should be used when installing the speakers to avoid personal injury and damage to the speaker.

Set the proper speaker setting for your application 6 position switch (8ohm-0-xW-xW-xW-xW).
Install the top cover and fasten the provided eye hook, nut and washer to the top cover and speaker as illustrated below.
At each speaker location, route the speaker cable(s) hanging from the ceiling area through the top cover, and dress the cables to the wire rope using plastic cable ties. Slide the speaker cables through the supplied back cover. Strip the ends back to 1/8" to 3/16".
Connect the wires from the amplifier to the supplied terminal block, Using the IN terminals: red to + and black to -. Please refer to the following pages for examples of various types of applications.
Attach the safety cable to the speaker.
If using the bracket to wall or ceiling mount, be sure to use the appropriate hardware to securely attach the speaker.

Standard 8 Ohm Application

70V Application

warning When installing multiple rows of speakers, we strongly recommend doing multiple wire runs, one run per row. We do not recommend doing a single wire run.

Specifications

Troubleshooting

Problem	Possible Cause	Fix
There is no sound	Power Off Equipment setting is wrong	Assure power is applied to all equipment in system. Check that routing in/output controls are set correctly.
Low sound level	Setting/Volume is set too low. Connection is shorted or bad.	Check volume controls or amplifiers are equalizers. Check that connections aren't partially shortened.
Sound cuts in and out	System overload/oscillation intermittent connection	Check for overload condition or bad connection
Distortion at increased level	Amplifier/speaker over driven	Check that power to speaker isn't over limits, amplifier isn't over driven. Reduce power to amplifier slightly.
Speaker makes "buzzing" noise	Hardware loose or speaker damaged	Make sure speaker is tight. Check speakers for loose parts or speaker damage.