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Owner’s Manual
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Owner’s Manual
SRM Subwoofer Specifications
Appendix C: Technical Information
Acoustic Performance:
Frequency Response (–3 dB) 40 Hz – 120 Hz [SRM1850]
34 Hz – 100 Hz [SRM2850]
Frequency Response (–10 dB) 35 Hz – 150 Hz [SRM1850]
26 Hz – 145 Hz [SRM2850]
Max peak SPL 132 dB [SRM1850]
135 dB [SRM2850]
Crossover Point 115 Hz plus alignment delay [SRM550]
115 Hz plus alignment delay [SRM650]
115 Hz plus alignment delay [SRM750]
60 Hz – 120 Hz [Variable]
Slope 3rd order HP, 4th order LP
Transducer
Woofer Diameter 18 in / 457 mm
Voice Coil Diameter 3.0 in / 76 mm
Subwoofer Diaphragm Material Paper
Magnet Material Ferrite
Power Amplifier
Rated Power 800 watts rms
1600 watts peak
Rated THD < 1%
Cooling Convection
Design Class D
Input/Output
Input Type Female XLR balanced
differential (stereo left/right)
Input Impedance 20 k
balanced,
10 k
unbalanced
Full Range Outputs Male XLR balanced
(parallel with inputs – mono)
High Pass Outputs Male XLR balanced
Line Input Power
US detachable line cord 100 – 120 VAC, 50 – 60 Hz, 200W
EU detachable line cord 200 – 240 VAC, 50 – 60 Hz, 200W
AC Connector 3-pin IEC 250 VAC
Power Supply Type Switchmode
Safety Features
Input Protection Peak and RMS limiting,
power supply and amplifier
thermal protection
Display LEDs Defeatable front power ON
(Running Man logo), Front load
power limiter, High Pass Mode,
input signal
Construction Features
Cabinet 18 mm Poplar plywood
Finish High durability black paint
Handles One on each side [SRM1850]
Two on each side [SRM2850]
Grille Powder-coated 16 gauge steel
Physical Properties
SRM1850:
Height 22.5 in / 572 mm
Width 22.2 in / 565 mm
Depth 23.9 in / 608 mm
Weight 64 lb / 29 kg
SRM2850:
Height 24.5 in / 623 mm
Width 44.0 in / 1117 mm
Depth (without casters) 24.0 in / 610 mm
Depth (with casters) 29.5 in / 750 mm
Weight 144 lb / 65.2 kg
Mounting Methods
SRM subwoofers are designed to sit on the floor or stage.
They are NOT designed to be pole-mounted or suspended.
The cabinet has no rigging points and is not suitable for rigging.
Never attempt to suspend an SRM subwoofer by its handles.
Options
SRM1850 Cover P/N 2036809-24
SRM2850 Cover P/N 2036809-27
SPM200 Loudspeaker Pole Mount P/N 2035170-01
Disclaimer
Since we are always striving to make our products better by
incorporating new and improved materials, components, and
manufacturing methods, we reserve the right to change these
specifications at any time without notice.
The “Running Man” figure is a registered trademark of LOUD
Technologies Inc.
All other brand names mentioned are trademarks or registered
trademarks of their respective holders, and are hereby
acknowledged.
©2014 LOUD Technologies Inc.
All Rights Reserved.