Appendix C: Technical Information - Mackie SRM550 Owner's Manual

Appendix C: Technical Information

SRM Loudspeaker Specifications
Acoustic Performance:
Frequency Response (–3 dB)
Frequency Response (–10 dB)
Max peak SPL
Crossover Point
Dispersion [H x V]
High-Frequency Section
Voice Coil Diameter
Horn Entry Diameter
Diaphragm Material
Magnet Material
Low-Frequency Section
Woofer Diameter
Voice Coil Diameter
Diaphragm Material
Magnet Material
Power Amplifiers
System Power Amplification
Rated Power
Low Frequency Power Amplifier
Rated Power
Rated THD
Cooling
Design
High Frequency Power Amplifier
Rated Power
Rated THD
Cooling
Design
55 Hz–17 kHz [SRM550]
50 Hz–17 kHz [SRM650]
42 Hz–20 kHz [SRM750]
49 Hz–20 kHz [SRM550]
39 Hz–20 kHz [SRM650]
37 Hz–20 kHz [SRM750]
132 dB [SRM550]
133 dB [SRM650]
135 dB [SRM750]
3 kHz
90˚ x 50˚
1.0 in / 25 mm
1.4 in / 36 mm
Titanium
Ferrite
12 in/305 mm [SRM550]
15 in/381 mm [SRM650]
2x 15 in/381 mm [SRM750]
2.6 in/66 mm [SRM550]
3.0 in/76 mm [SRM650]
2.5 in/64 mm [SRM750]
Paper
Ferrite
800 watts rms
1600 watts peak
400 watts rms
800 watts peak
< 1%
Convection
Class D
400 watts rms
800 watts peak
< 1%
Convection
Class D
Input/Output
Channel 1
Mic-Line
1/4" TRS, Wide-Z ™
Channel 2
Mic-Line
1/4" TRS, Wide-Z ™
RCA
Thru
[Passive when the Ch 1 / Mix switch
is in the "out" (Ch 1) position]
[Active when the Ch 1 / Mix switch
is in the "in" (Mix) position]
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, Speaker Mode,
Feedback Destroyer, input signal
Construction Features
Cabinet 15 mm Poplar
Finish High durability black paint
Handles One on each side
Grille Powder-coated 18 gauge steel
Fly Points 3x M10 x 1.5 x 37 mm [SRM550 / SRM650]
10x M10 x 1.5 x 37 mm [SRM750]
Monitor Angle 60˚ [SRM550 / SRM650]
8 k balanced
1 M unbalanced
8 k balanced
1 M unbalanced
25 k unbalanced
Male XLR balanced
Owner's Manual
21