Mackie HD1221 Owner'S Manual Download Page 3

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Introduction

The HD1221 Powered Loudspeaker represents a major

step into portable high-definition live sound, providing
precise, articulate full-range sound at the high-output
levels demanded of modern PA systems. Two Class-D
Fast Recovery™ amplifiers efficiently drive 1200 Watts
of total system power, providing maximum output with
minimal distortion. True high-definition sound is
possible thanks to an arsenal of technological
innovations including patented acoustic correction
processing that was previously only available on high-
end stadium touring systems. This complex processing,
along with a phase-coherent electronic crossover and
transducer time-alignment provide unparalleled
acoustic accuracy that has to be heard to be believed.

The HD1221 features system tuning, a 12” neodymium

woofer and a 1.75” heat-treated titanium compression
driver, custom designed by the award winning

engineering team at EAW, delivering the ultimate in
both quality and performance.

A custom rotatable horn by Martin Audio, three

selectable voicing modes and extensive protection
circuitry complete this ultra-portable, powerful HD
system that may be used as the house PA or as monitors
for the band.

All of these high-end components are housed in a

rugged, all-wood enclosure that not only protects, but
allows for multiple mounting options including flying
and pole mounting. The HD1221 brings high-definition
sound to the world of portable PA systems.

22.

Rigging Precautions: When mounting or suspending loudspeaker

enclosures, it is essential that load ratings, rigging techniques, and

special safety considerations be appropriate for the installation. Use

only the mounting/rigging points on the loudspeaker enclosure

intended for this purpose. The user must determine the load

requirements, dynamic loading, and any other contributing factors

affecting the loudspeaker installation. The user must determine the

proper design factor for specific applications and the required load

rating of the connection to structure. Comply with all applicable

federal, state, and local regulations.

We strongly recommend the following rigging system practices:

• Documentation: Thoroughly document the mounting/rigging

design with detailed drawings and parts lists.

• Analysis: Have a licensed structural engineer or other qualified

professional review and approve the mounting/rigging design

before its implementation.

• Installation: Use personnel experienced and qualified for

mounting/rigging loudspeakers in accordance with and in

compliance with all federal, state and local regulations.

DANGER: Loudspeakers should be mounted or suspended only

by persons with knowledge of the proper hardware and rigging

techniques. When stacking or pole-mounting loudspeakers, be

sure that they are stabilized and secured from falling over or being

accidentally pushed over. Failure to follow these precautions may

result in damage to the equipment, personal injury, or death.

Features

• 1200W of ultra-efficient Class-D Fast

Recovery™ amplification

• LF 500W RMS / 1000W peak

• HF 100W RMS / 200W peak

• High-definition digital processing includes:

• Revolutionary patented acoustic correction

• Transducer time alignment and phase

correction

• Precision 2-way crossover

• Custom designed transducers by EAW

• 12” neodymium woofer with 3” voice coil

• 1.75” compression driver with heat-treated

titanium diaphragm

• Custom designed user-rotatable 90˚ x 50˚ horn

by Martin Audio

• 60˚ monitor angle for maximum coverage on

stage

• Three user-selectable voicing modes for easy

system tuning

•  Ultra-compact and lightweight (50 lb / 22.7 kg)
•  Integrated limiting and protection circuitry
•  Rugged all wood cabinet (15mm birch)
•  12 integrated fly points for horizontal and

vertical rigging

• Stand / pole mountable

Owner’s Manual

Owner’

s Manual

Part No. SW0845 Rev. A 09/10

Contents

IMPORTANT SAFETY INSTRUCTIONS

INTRODUCTION

FEATURES

HOOKUP DIAGRAMS

REAR PANEL FEATURES