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FR SERIES AMPLIFIERS

FR 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 
keep the owner’s manual writer from getting sad. He’s 
been a bit down recently, after his sweetheart in ac-
counting started going out with that amplifier designer, 
just because he can whisper sweet nothings in Klingon

®

.

The FR 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.

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 inputs are capable of accepting balanced XLR, 

1/4" TRS, or unbalanced 1/4" TS connections from 
line-level sources. 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 signal-present LED 
and an overload LED.

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 mount-

ing, where it will take up two rather lovely rack spaces. 
There are two handles fitted on the front panel for easy 
transporting.

FEATURES

•  FR•800: 800 watts continuous @ 4 ohms 

bridged

•  FR•1400: 1400 watts continuous @ 4 ohms 

bridged

•  FR•2500: 2500 watts continuous @ 4 ohms 

bridged

•  Ultra-low noise/low-distortion design 
•  Switchable low-cut filter @ 30 Hz on both chan-

nels

•  Switchable limiter on both channels 
•  1/4" TRS and XLR line input jacks
•  Speakon

®

 outputs and binding posts for left, 

right and bridged mono

•  Detented rotary gain controls
•  Signal present and OL (overload) LEDs
•  Variable speed fans and large finned heatsink 

for superior cooling

•  Robust chassis, proven design
•  Discreet component power amplifiers
•  Double-sided, quality circuit boards
•  Amaze your friends with your very own reliable 

amplifier buddy who will never let you down

•  Kick sand in the faces of all those amplifiers 

that have wronged you

HOW TO USE THIS MANUAL

The first section after this Introduction is a Getting 

Started guide to help you get things set up fast. Right 
after that are the hook-up diagrams showing some typi-
cal setups.

The Front and Rear Panel Features section describes 

every detail and control of the amplifier. Throughout 
this section you’ll find illustrations with each feature 
numbered and talked about in words.

This icon marks information that is criti-

cally 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 

information.

Appendix B is a section on connectors: XLR connec-

tors, TRS balanced connectors, TS unbalanced connec-
tors. Speaker impedance is also discussed.

Appendix C shows the amplifier technical specifica-

tions, and a fetching block diagram.

Please write your serial number here for future 

reference (i.e., insurance claims, tech support, 

return authorization, etc.) 

 

 

 

Purchased at: 

 

 

 

Date of purchase:

Summary of Contents for FR

Page 1: ...OWNER S MANUAL TWO CHANNEL POWER AMPLIFIERS FR 800 FR 1400 and FR 2500 FR Series ...

Page 2: ...ptibility to noise induced hearing loss but nearly everyone will lose some hearing if exposed to sufficiently intense noise for a period of time The U S Government s Occupational Safety and Health Administration OSHA has specified the permissible noise level exposures shown in the following chart According to OSHA any exposure in excess of these permissible limits could result in some hearing loss...

Page 3: ... 2 VENTILATION 8 3 OLLEDs 8 4 SIGLEDs 8 5 LEVELCONTROLS 8 RearPanelFeatures 9 6 XLRINPUTS 9 7 1 4 INPUTS 9 8 SUBSONICFILTER 9 9 CLIPLIMIT 9 10 AMPMODE 9 11 FANVENTS 10 12 SPEAKEROUTPUTS 10 13 BREAKER 10 14 POWERCORDSOCKET 10 GeneralPrecautions 11 ACPOWERREQUIREMENTS 11 THERMALCONSIDERATIONS 11 RACKMOUNTING 11 MAINTENANCE 11 AppendixA ServiceInformation 12 WarrantyService 12 Troubleshooting 12 Repa...

Page 4: ...nsporting FEATURES FR 800 800 watts continuous 4 ohms bridged FR 1400 1400 watts continuous 4 ohms bridged FR 2500 2500 watts continuous 4 ohms bridged Ultra low noise low distortion design Switchable low cut filter 30 Hz on both chan nels Switchable limiter on both channels 1 4 TRS and XLR line input jacks Speakon outputs and binding posts for left right and bridged mono Detented rotary gain cont...

Page 5: ...r the binding posts or the Speakon connectors The binding post connectors are wired as fol lows Red hot speaker terminal Black cold speaker terminal The Speakon connectors are wired as follows 1 hot speaker terminal 1 cold speaker terminal 5 In BRIDGE mode if using the binding post outputs CH 1 red post hot speaker terminal CH 2 red post cold speaker terminal Do not use the black terminals If usin...

Page 6: ...T MAIN OUT AMP MODE SWITCH STEREO Passive Speakers Mackie C300s TO SPEAKERS OPTIONAL CONNECTION USING BINDING POSTS FROM MIXING CONSOLE MONO OUT AMP MODE SWITCH MONO Passive Speakers Mackie C300s TO SPEAKERS OPTIONAL CONNECTION USING BINDING POSTS FROM MIXING CONSOLE MAIN OUT AMP MODE SWITCH BRIDGE Passive Speaker Mackie C300 TO SPEAKER OPTIONAL CONNECTION USING BINDING POSTS ...

Page 7: ...o Pin 1 COLD COLD AMPLIFIER END SPEAKER END HOT CHANNEL A CHANNEL B 1 1 2 2 1 1 2 2 COLD FROM THRU OUTPUT TO SECOND SPEAKER INPUT FROM THRU OUTPUT TO SECOND SPEAKER INPUT TO FIRST SPEAKER INPUT HOT CHANNEL B 1 1 2 2 1 1 2 2 FROM MIXING CONSOLE LEFT AND RIGHT MAIN OUT AMP MODE SWITCH STEREO Passive Speakers Mackie C300s AMP MODE SWITCH STEREO Passive Speakers Mackie C300s RUNNING STEREO SPEAKERS WI...

Page 8: ...en a signal is present after the Level con trols at the output stage of the power amplifier If the Level controls are turned all the way down fully coun terclockwise these indicators will not light 5 LEVELCONTROLS These two knobs control the levels of Channels 1 and 2 The knobs are detented to make it easy to set both controls to the same level Usually these controls are set all the way up You mig...

Page 9: ...ch protects your loudspeakers from the effects of clipping It is designed to be virtually transparent meaning you probably won t even notice any audible difference when the switch is turned on We recommend that you leave this switch on at all times However if you are working at quiet levels or you have already placed a compressor limiter in the signal path you can leave the CLIP LIMIT switch off 1...

Page 10: ...breaker to pop such as a mains voltage surge occurring at the same time as a peak amplifier output Turn the POWER switch off and push the BREAKER button in to reset the circuit breaker Turn the POWER switch back on and the amplifier should resume normal operation If the circuit breaker pops again something probably isn t right Make sure that the total impedance of the speakers connected to the out...

Page 11: ...ion If the amplifier should overheat a thermal switch turns off the power amplifier allowing the heatsink to cool down Once the amplifier has cooled to a safe operating temperature the thermal switch resets and reactivates the amplifier If this should occur identify the cause of the problem and take corrective action For example Provide better ventilation Install a fan in the rack to move more air...

Page 12: ...rly Loudspeaker not working properly Swap with a good one Is the LED next to the POWER switch illumi nated If not make sure the AC outlet is live The fuses inside the amplifier may have blown These are not a user serviceable See next page about service Warranty Service Details concerning Warranty Service are spelled out in the Warranty section on page 19 If you think your amplifier has a problem p...

Page 13: ...o equip ment into the same AC circuit so they share a common ground Repair Service for Mackie products is available at a factory authorized service center Service for Mackie products living outside the United States can be obtained through local dealers or distributors If your amplifier needs service follow these instructions 1 Review the preceding troubleshooting suggestions Please 2 Call Tech Su...

Page 14: ...ric WG Metric Wire Gauge Note that smaller AWG numbers larger 2 2 3 1 1 SHIELD COLD HOT SHIELD COLD HOT 3 SHIELD COLD HOT 3 2 1 SLEEVE TIP SLEEVE TIP RING RING TIP SLEEVE RING SLEEVE TIP TIP SLEEVE TIP SLEEVE Minimum AWG 4 ohm 8 ohm 18 10 ft 25 ft 16 25 50 14 25 75 12 50 125 10 100 200 Min Metric WG 4 ohm 8 ohm 12 3 m 8 m 14 8 15 16 8 25 20 15 40 25 30 60 COLD HOT 1 1 1 1 2 2 Use a high quality 3 ...

Page 15: ...ies equals 8 ohms 4 4 8 PARALLEL Parallel means that the positive amp output con nects to the positive terminals of all the speakers and the negative amp output connects to the negative terminals of all the speakers If one speaker opens in a parallel configuration the others will still work but the load will change That lets you breathe a little easier the show will go on except that you may have ...

Page 16: ...d The technical writer reserves the right to go downstairs and get a bag of popcorn shoot the breeze and exchange tech writer jokes with his buddies around the water cooler Betty darling I will always love you I m leaving now to go and rethink my life get some lunch and a brake cable for the old Chevette All I can hope for is that your new Beau is as reliable and dependable as these amplifiers 200...

Page 17: ...2 3 CHANNEL A LEVEL CHANNEL B LEVEL SUBSONIC FILTER ON OFF ON OFF ON OFF ON PROTECTION DC OFFSET OVER TEMP SHORT CIRCUIT CURRENT LIMIT OFF CLIP LIMITER OL POWER AMPLIFIER VDC VDC CHANNEL A SPEAKER OUT BRIDGED SPEAKER OUT 1 1 2 2 POWER AMPLIFIER VDC VDC CHANNEL B SPEAKER OUT OL SIG SIG VDC CHANNEL A TOROIDAL POWER TRANSFORMER BREAKER FUSE FUSE TEMP SENSOR ON HEATSINK FAN VARIABLE SPEED CONTROL HI D...

Page 18: ...representative MondaythroughFriday from7AMto5PMPSTat 1 800 898 3211 Afterhours visitwww mackie comandclickSupport oremailusat techmail mackie com 19 0 483 mm 15 7 399 mm FR 800 WEIGHT 43 6 lbs 19 8 kg FR 1400 WEIGHT 48 5 lbs 22 kg FR 2500 WEIGHT 56 2 lbs 25 5 kg 3 5 89 mm Dimensions ...

Page 19: ... of the LOUD Technologies factory authorized service centers and deemed eligible for repair or replacement under the terms of this warranty will be repaired or replaced within thirty days of receipt LOUD Technologies and its authorized service centers may use refurbished parts for repair or replacement of any product Products returned to LOUD Technologies that do not meet the terms of this Warrant...

Page 20: ... Road NE Woodinville WA 98072 USA United States and Canada 800 898 3211 Europe Asia Central and South America 425 487 4333 Middle East and Africa 31 20 654 4000 Fax 425 487 4337 www mackie com E mail sales mackie com ...

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