FRS SERIES AMPLIFIERS
FRS SERIES AMPLIFIERS
Introduction
Congratulations on the purchase of your new Mackie
power amplifier. Please read these instructions to get
the maximum performance from your amplifier, and to
make the technical writer feel loved.
The FRS series amplifiers are designed for continu-
ous duty in speech, music, and sound reinforcement
applications in churches, schools, offices, arenas, hotel
meeting rooms, convention centers, recreation facilities
and other venues demanding high performance, flexible
features, and rugged dependability.
The switching power supply allows for high efficiency
and performance without the heavy weight of amplifiers
with conventional AC transformers.
A rear panel low-cut switch allows you to remove low
frequencies, and a clip-eliminator allows extra protec-
tion for your speakers by preventing the amplifier from
being overloaded.
The amplifier can operate in stereo, dual-mono, or
bridged-mono. The output connections are Speakons
®
and binding posts for left, right, and bridged mono.
The combination inputs are capable of accepting
balanced XLR, 1/4" TRS, or unbalanced 1/4" TS connec-
tions from line-level sources. Two XLR through-outputs
allow the balanced input signals to be shared with other
amplifiers, or powered speakers etc.. Two front panel
level controls allow adjustment of the input signals.
The front panel has a rocker power switch with a
power LED, and each channel has a high-resolution
six-segment LED meter.
The amplifier output stage is fully protected against
permanent damage caused by overloading, shorts, silky
boxers, and extreme temperatures.
The front panel incorporates holes for rack mounting,
where it will take up two rather lovely rack spaces. Two
handles are fitted on the front panel for easy transport-
ing.
FEATURES
• Professional lightweight power amplifier with
high-power / low-distortion design
• Fast Recovery circuitry for clean, undistorted
sound — even at clipping
• Ultra-light switching power supply for maxi-
mum efficiency and minimal heat
• Available in three powerful models, with
continuous power @ 4 ohms bridged of:
FRS•1300: 1300 W
FRS•1700: 1660 W
FRS•2800: 2800 W
• Selectable dual-mono, stereo, or bridged-mono
operating modes
• 6-segment LED meter per channel, with OL
(overload) and SIG (signal present) LEDs
• Defeatable clip limiter plus short, under-imped-
ance, over-current, and thermal protection
• 30 Hz subsonic filter maximizes amplifier ef-
ficiency and headroom
• Combo XLR/TRS input and TRS thru connectors
per channel
• Detented rotary gain controls
• Speakon
®
and binding post outputs per channel
• Third Speakon output for bridged mono appli-
cations, also provides both output channels on
a single connector (mono/stereo modes)
• Multi-speed fans adjust to operating tempera-
ture for minimal acoustic noise
• Robust, impact-resistant, all-steel 2U rack-
mount chassis
• Comfortable handles for easy transport and
protection of level controls
HOW TO USE THIS MANUAL
After this introduction, a getting started guide will
help you get things set up fast. The hook-up diagrams
show some typical setups. The features section describes
every detail and control, and you’ll find illustrations
with each feature numbered and described.
This icon marks information that is critically
important or unique to the amplifier. For your
own good, read and remember them.
This icon leads you to in-depth explanations
of features and practical tips. They usually
have some valuable nuggets of information.
Appendix A is a section on troubleshooting and repair.
Appendix B is a section on connectors.
Appendix C shows the technical specifications.
Please write your serial number here for future
reference (i.e., insurance claims, tech support,
return authorization, etc.)
Purchased at:
Date of purchase:
