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FR SERIES AMPLIFIERS
FR SERIES AMPLIFIERS
Appendix C: Technical Info
Topology
FR•800, FR•1400: Class AB
FR•2500: Class H
Cooling
Variable-speed fans with back to front airflow
Indicators
Channels A and B SIG (Signal Present), OL (Overload), POWER
Current Consumption
FR•800 FR•1400 FR•2500
Idle 0.5 A 0.5 A 1.0 A
Musical Program @ 8 ohms 3.9 A 5.1 A 8.1 A
Musical Program @ 4 ohms 5.0 A 6.7 A 10.0 A
Musical Program @ 2 ohms 7.0 A 10.6 A 17.2 A
AC Power Requirements
U.S model: 120 VAC, 60 Hz
European model: 240 VAC, 50 Hz
Physical Dimensions and Weight
Height: 3.5 in/89 mm
Width: 19.0 in/483 mm
Depth: 15.7 in/400 mm
Weight:
FR•800: 43.6 lb/19.8 kg
FR•1400: 48.5 lb/22.0 kg
FR•2500: 56.2 lb/25.5 kg
LOUD Technologies Inc. is always boldly striving to improve
our products by incorporating new and improved materi-
als, components, and manufacturing methods. Therefore, we
reserve the right to change these specifications at any time
without notice.
“Mackie,” and the “Running Man” are registered trademarks of
LOUD Technologies Inc. All other brand names mentioned are
trademarks or registered trademarks of their respective hold-
ers, and are hereby acknowledged.
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.
©2006 LOUD Technologies Inc. All Rights Reserved.
Specifications
Continuous Sine Wave Average Output Power, per channel,
both channels driven, 0 Hz to 0 kHz
FR•800 FR•1400 FR•2500
2 ohms: 480 W 800 W 1400 W
4 ohms: 300 W 450 W 750 W
8 ohms: 205 W 310 W 575 W
Bridged Mono Operation, 0 Hz to 0 kHz
FR•800 FR•1400 FR•2500
4 ohms: 800 W 1400 W 2500 W
8 ohms: 560 W 900 W 1500 W
Note: Power ratings are specified at 120 VAC line voltage.
Power Bandwidth
5 Hz to 50 kHz (+0, –3 dB)
Frequency Response
25 Hz to 25 kHz (+0, –1 dB)
Distortion
THD and SMPTE IMD; 20 Hz to 20 kHz
< 0.03 % @ 8 ohms
Signal-to-Noise Ratio
> 100 dB below rated power into 4 ohms
Channel Separation
> 90 dB @ 1 kHz
Damping Factor
> 300 @ 1 kHz and below
Input Impedance
20 kΩ balanced
10 kΩ unbalanced
Input Sensitivity
1.15 V (+3.4 dBu) for rated power into 4 ohms
Gain
FR•800: 30 dB
FR•1400: 32 dB
FR•2500: 34 dB
Maximum Input Level
9.75 Vrms (+22 dBu)
Turn On Delay
2.5 seconds
Subsonic Filter
– 9 dB @ 30 Hz