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SRM1550 Powered Subwoofer
Getting Started
Introduction
The Mackie SRM1550 powered subwoofer is
designed from the ground up to be the perfect match
for SRM450 and SRM350 speakers, delivering 1200W
of raw power paired with a custom high-output
15" woofer for powerful room-shaking performance.
The road-worthy internally reinforced Poplar cabinet
delivers on the “Built-Like-A-Tank” legacy that the
SRM series is known for and its front ported design
provides maximum punch and low-frequency extension.
The SRM1550 features stereo XLR inputs,
full-range and high-pass outputs plus a variable
digital crossover that includes presets for the
Mackie SRM350 and SRM450.
Get the powerful low end you need from
the subwoofer built on the proven SRM legacy.
How to Use This Manual:
After this introduction, a getting started guide will
help you get things set up fast. The hookup diagrams
show some typical setups, while the remaining sections
provide details of the SRM1550 subwoofer.
This icon marks information that is critically
important or unique to the subwoofer. For
your own good, read and remember them.
The following steps will help you set up the
subwoofers quickly.
1. Make all initial connections with the power
switches OFF on all equipment. Make sure the master
volume, level, or gain controls are all the way down.
2. Connect the line-level outputs from the mixing
console (or other signal source) to the XLR inputs on
the rear panel of the SRM1550 subwoofer(s).
3. Connect the high pass outputs from the SRM1550
subwoofer(s) to the inputs of powered loudspeakers
(or to an amplifier powering passive loudspeakers).
4. Connect the supplied AC power cords to the
IEC sockets on the rear panel of each subwoofer.
Plug the other end into an AC outlet properly configured
with the correct voltage as indicated below the IEC
socket.
5. Turn the mixer (or other signal source) on.
6. Turn the subwoofer(s) on.
7. Turn the loudspeaker(s) on.
8. Start the signal source and raise the mixer’s
main L/R fader up until audio may be heard.
9. Adjust the master volume of the mixer to a
comfortably loud listening level.
10. Read the rest of this manual to learn how to set
the high pass mode to really dial in a sound for the
venue.
Things to Remember:
• Never listen to loud music for prolonged periods.
Please see the Safety Instructions on page 2 for
information on hearing protection.
• As a general guide, the mixer (or other signal
source) should be turned on first, subwoofers
next, and loudspeakers last. As such, the
loudspeakers should also be turned off first,
followed by the subwoofers, then the mixer.
This will reduce the possibility of any turn-on
or turn-off thumps and other noises generated
by any upstream equipment from coming out of
the speakers.
• Save the shipping boxes and packing materials!
You may need them someday. Besides, the
cats will love playing in them and jumping out at
you unexpectedly. Remember to pretend like you
are surprised!
• Save your sales receipt in a safe place.
