Part No. SW0765 Rev. B 06/10
6/6 PAGES
HD1521
HIGH-DEFINITION POWERED
LOUDSPEAKER
Two per side Two on the rear
Three each on the top and bottom
12 Fly Points
FLY POINTS
Input
XLR
Loop
Out
XLR
HF
LF
Amp
Amp
Digital to
Analog
Converter
Digital to
Analog
Converter
Analog to
Digital
Converter
Signal /
Limit LED
HD
Loudspeaker
Processing
Limiter
Limiter
Mute
Level
Control
HD
Loudspeaker
Processing
3-Band Contour EQ
80 100-8K 12K
LO MID HI
Thermal
Monitoring
Flown V e rtically
Top Fly Points
Side Fly Points
Rear Fly Points
(adjusts angle)
Lower Rear
Fly Point
(adjusts angle)
Flown Horizontally
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
specications at any time without notice. “Mackie” and the “Running
Man” gure 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.
©2010 LOUD Technologies Inc. All Rights Reserved.
Electronic les for this product are available at:
www.mackie.com
Specification Sheet HD1521_SS.PDF
Owner’s Manual HD1521_OM.PDF
EASE Data HD1521_EASE_DATA.zip
HD1521 FLY POINTS
www.mackie.com
16220 Wood-Red Road NE
Woodinville, WA 98072 USA
800-898-3211, Fax 425-487-4337, sales@mackie.com
HD1521 BLOCK DIAGRAM
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