Appendix B: Technical Information - Mackie SRM1550 Owner's Manual

Appendix B: Technical Information

SRM1550 Subwoofer Specifications
Acoustic Performance:
Frequency Response (–3 dB)
Frequency Response (–10 dB)
Max peak SPL
Crossover Point 115 Hz plus alignment delay [SRM350]
110 Hz plus alignment delay [SRM450]
Slope
Transducer
Woofer Diameter
Voice Coil Diameter
Subwoofer Diaphragm Material
Magnet Material
Power Amplifier
Rated Power
Rated THD
Cooling
Design
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, 115W
EU detachable line cord 200 – 240 VAC, 50 – 60 Hz, 115W
AC Connector 3-pin IEC 250 VAC
Power Supply Type Switchmode
50 Hz – 120 Hz
40 Hz – 180 Hz
131 dB
60 Hz – 120 Hz [Variable]
4th order HP, 4th order LP
15 in / 381 mm
3.0 in / 76 mm
Paper
Ferrite
600 watts rms
1200 watts peak
< 1%
Convection
Class D
Safety Features
Input Protection Peak and RMS limiting,
power supply and amplifier
thermal protection
Display LEDs Defeatable front power ON,
High Pass Mode,
Input / Limiter Signal
Construction Features
Cabinet 18 mm Poplar plywood
Finish High durability black paint
Handles One on each side
Grille Powder-coated 16 gauge steel
Physical Properties
Height
Width
Depth
Weight
Mounting Methods
SRM1550 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
SRM1550 Cover
SPM200 Loudspeaker Pole Mount
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.
©2016 LOUD Technologies Inc.
All Rights Reserved.
20.3 in / 516 mm
20.0 in / 508 mm
26.5 in / 673 mm
65.5 lb / 29.7 kg
P/N 2036809-41
P/N 2035170-01
Owner's Manual
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