Appendix c: technical info, Specifications, Frs series amplifiers – MACKIE FRS1700 User Manual
Page 16
16
FRS Series Amplifiers
FRS Series Amplifiers
Appendix C: Technical Info
Topology
FRS•1700:
Class AB
FRS•2800:
Class H
Cooling
Variable-speed fans with back-to-front airflow
Indicators
SIG (Signal Present) on each channel
OL (Overload) on each channel
Signal Meters –3 dB, –6 dB, –9 dB. –20 dB on each channel
Power LED on power switch
Current Consumption (measured at 240 VAC line voltage)
FRS•1700
FRS•2800
Idle
0.5 A
0.6 A
Musical Program:
@ 8 ohms
5.3 A
8.4 A
@ 4 ohms
7.4 A
10.8 A
@ 2 ohms
11.4 A
18.3 A
AC Power Requirements
U.S. model:
100–120 VAC, 50–60 Hz
European model:
200–240 VAC, 50–60 Hz
Physical Dimensions and Weight
Height:
3.50 in / 89 mm
Width:
19.00 in / 483 mm
Depth:
14.7 in / 373 mm
Depth with Handles:
16.2 in / 411 mm
Weight:
FRS•1700:
21.5 lb / 9.7 kg
FRS•2800:
22.0 lb / 10.0 kg
Flavor:
Slightly minty
LOUD Technologies Inc. is always boldly striving to
improve our products by incorporating new and improved
materials, 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
holders, and are hereby acknowledged.
©2012 LOUD Technologies Inc. All Rights Reserved.
Specifications
Continuous Sine Wave Average Output Power, per channel,
both channels driven, 20 Hz to 20 kHz
FRS•1700
FRS•2800
2 ohms: 830 W
1300 W
4 ohms: 540 W
850 W
8 ohms: 310 W
500 W
Bridged Mono Operation, 20 Hz to 20 kHz
FRS•1700
FRS•2800
4 ohms: 1660 W
2800 W
8 ohms: 1080 W
1700 W
Note: Power ratings are specified at 240 VAC line voltage.
Power Bandwidth
5 Hz to 50 kHz (+0, –3 dB)
Frequency Response
20 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
> 105 dB below rated power into 4 ohms
Channel Separation
> 68 dB @ 1 kHz
Damping Factor
> 300 @ 1 kHz and below, into 8 ohms
Input Impedance
20 kΩ balanced
10 kΩ unbalanced
Input Sensitivity
1.15 V (+3.4 dBu) for rated power into 4 ohms
Gain
FRS•1700:
33 dB
FRS•2800:
35 dB
Maximum Input Level
9.75 Vrms (+22 dBu)
Turn On Delay
2.5 seconds
Subsonic Filter
– 9 dB @ 30 Hz