Mackie FRS-2800 Owner's Manual - Page 4

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 continuous 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 protection 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 connections 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 transporting. Please write your serial number here for future reference (i.e., insurance claims, tech support, return authorization, etc.) Purchased at: Date of purchase: 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 maximum 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-impedance, over-current, and thermal protection • 30 Hz subsonic filter maximizes amplifier efficiency 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 applications, also provides both output channels on a single connector (mono/stereo modes) • Multi-speed fans adjust to operating temperature for minimal acoustic noise • Robust, impact-resistant, all-steel 2U rackmount 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.  FRS SERIES AMPLIFIERS