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SP400C – 2
1. Safety Instructions
1.1. Read Instructions — Before connecting and using
the equipment, please read this Instruction Manual
carefully and keep it for future reference.
1.2. HEED ALL WARNINGS — Always follow the
precautions provided on this Mackie Designs product
and in the instruction manual.
1.3. Water and Humidity — Do not use this Mackie
Designs product near water; for example, in the
vicinity of a bath tub or sink, in a damp cellar, near a
swimming pool, etc.
1.4. Foreign Bodies and Liquids — Be careful not to
allow any foreign bodies or liquids to get into this
Mackie Designs product.
1.5. Servicing — The user should never attempt to
make any repairs on this Mackie Designs product
unless otherwise indicated in the instruction manual.
All repairs should be made by qualified service
technicians.
1.6. Installation — Do not install this Mackie Designs
product in any way that is not provided for in the
instruction manual.
1.7. Respect the Safety Standards — The entire sound
system must be designed in compliance with the
current standards and laws regarding electrical
systems.
1.8. Specifications — When installing and using this
Mackie Designs product, keep in mind the technical
specifications indicated in the dedicated section of
the manual.
1.9. Accessories — Install and use this Mackie
Designs product only with the accessories specified
by the manufacturer or supplied with the product.
2. Table of Contents
1. SAFETY INSTRUCTIONS ....................................................... 2
2. TABLE OF CONTENTS............................................................ 2
3. KEY FEATURES....................................................................... 2
4. INTRODUCTION...................................................................... 3
5. PRODUCT DESCRIPTION ....................................................... 3
6. INSTALLING THE SP400C ...................................................... 4
7. SPECIFICATIONS .................................................................... 6
8. SERVICE INFORMATION........................................................ 8
1.10. Hearing Loss — Exposure to high sound levels
can cause permanent hearing loss. The sound
pressure level which leads to hearing loss varies
considerably from one person to another, and
depends on the duration of exposure. The U.S.
Government’s Occupational Safety and Health
Administration (OSHA) has established the maximum
sound pressure levels that can be with stood without
causing damage, which are shown in the table below.
According to the OSHA regulations, any exposure over
the maximum limits indicated in the table can reduce
the hearing capacity of a person. To prevent
potentially dangerous exposure to high sound
pressure levels, anyone subjected to such levels must
use suitable protection. When a Mackie Designs
product capable of producing high sound levels is
being used, it is therefore necessary to wear ear plugs
or protective earphones when the limits shown in the
table are exceeded.
Consult the specifications provided in the instruction
manual to know the maximum sound pressure (SPL)
the speaker is capable of producing.
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WARNING! This equipment has been designed to be installed by qualified professionals only! There are
many factors to be considered when installing professional sound reinforcement systems, including
mechanical and electrical considerations, as well as acoustic coverage and performance. Mackie Designs
strongly recommends that this equipment be installed only by a professional sound installer or contractor.
3. Key Features
• Proprietary waveguide design to improve hi-frequency dispersion
• Ported design for extended low-frequency response
• 1" soft-dome tweeter with neodymium magnetic motor structure
• 6.5" low-frequency woofer
• Built-in 70/100V transformer with multiple taps
• Transformer bypass for low-impedance operation (16 ohms)
• True 2-way crossover
• Built-in switchable high-pass filter
• Complete assembly for quick installation
• UL/cUL/CE listed
Part No. 0001875 Rev. A 03/03
© 2003 Mackie Designs Inc. All Rights Reserved.