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Correct disposal of this product.

 This symbol indicates that this product should not be disposed of with your household waste, according to the WEEE Directive (2002/96/EC) and your national law. This product 

should be handed over to an authorized collection site for recycling waste electrical and electronic equipment (EEE). Improper handling of this type of waste could have a possible negative impact on the environment and 

human health due to potentially hazardous substances that are generally associated with EEE. At the same time, your cooperation in the correct disposal of this product will contribute to the effective usage of natural 

resources. For more information about where you can drop off your waste equipment for recycling, please contact your local city office, waste authority, or your household waste disposal service.

Physical Properties

Height   

 

 

30.00 in / 762 mm

Front Width 

 

 

18.25 in / 463.5 mm

Rear Width 

 

 

11.82 in / 300.2 mm

Depth 

 

 

 

18.81 in / 477.8 mm

Weight   

 

 

80 lb / 36 kg 

Mounting Methods

Floor mount, pole mount, or fly via 12 integrated M10 mounting 
points (using M10 x 1.5 x 37 mm forged shoulder eyebolts). See 
page 8 for more information. 

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.
“Mackie” and the “Running Man” figure are registered trade-
marks of LOUD Technologies Inc.
All other brand names mentioned are trademarks or registered 
trademarks of their respective holders, and are hereby acknowl-
edged.

©2009 LOUD Technologies Inc. 
All Rights Reserved.

HD151 Block Diagram

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

1

Owner’s Manual

Owner’

s Manual

Summary of Contents for HD1521

Page 1: ...HD1521 OWNER S MANUAL 2 Way High Definition Powered Loudspeaker...

Page 2: ...evice not expressly approved by LOUD Technologies Inc could void the user s authority to operate the equipment under FCC rules 20 This apparatus does not exceed the Class A Class B whichever is applic...

Page 3: ...with all applicable federal state and local regula tions We strongly recommend the following rigging system practices Documentation Thoroughly document the mounting rigging design with detailed drawi...

Page 4: ...Full Range Power Cords Power Cords Powered subwoofer plays the low frequencies Powered subwoofer plays the low frequencies Mixer HD1521 reproduces all frequencies above the subwoofer s crossover point...

Page 5: ...the Contour EQ circuit The LED next to the switch will light to indicate that the EQ is on Use this switch to engage or bypass the EQ or toggle it repeatedly while listening carefully to judge the EQ...

Page 6: ...dspeaker make sure that the voltage of your unit listed above the IEC AC receptacle is the same voltage as your local AC mains supply Use only the power cord supplied Also disconnecting the plug s gro...

Page 7: ...ome typical room problems that might arise Avoid placing loudspeakers in the corners of a room Doing so increases the low frequency output and can cause the sound to be muddy and indistinct Avoid plac...

Page 8: ...ng via its fly points NEVER attempt to suspend the HD1521 by its handles Rigging Design Practices Rigging a loudspeaker requires determining 1 The rigging methods and hardware that meet static shock d...

Page 9: ...ns carrying the heat away In order for this convection cooling to work efficiently it is important to provide adequate airspace behind the loudspeaker When positioning the HD1521 we recommend leaving...

Page 10: ...Tech Support department at 1 800 898 3211 Mon day Friday during normal business hours Pacific Time to explain the problem Tech Support will tell you where the nearest factory authorized service cente...

Page 11: ...akers See page 4 for a visual example of daisy chaining There is a limit to how many you can daisy chain together A general rule is to maintain a load impedance ten times or more than the source imped...

Page 12: ...iver sensitivity and amplifier power Measured with pink noise free field at 1 meter before limiting Power Amplifiers Low Frequency Power Amplifier Rated Power 700 watts rms 1400 watts peak Rated THD 0...

Page 13: ...25 in 463 5 mm Rear Width 11 82 in 300 2 mm Depth 18 81 in 477 8 mm Weight 80 lb 36 kg Mounting Methods Floor mount pole mount or fly via 12 integrated M10 mounting points using M10 x 1 5 x 37 mm for...

Page 14: ...1 100 10 1 1 3 Octave Response dB SPL 2 83 V 20 100 1000 20000 110 100 120 70 80 90 Horizontal Vertical Frequency Hz Directivity Index dB Directivity Factor Q 20 100 1000 20000 20 10 1 Frequency Hz Fr...

Page 15: ...he Warranty Period to the Company at www mackie com support or by calling LOUD technical support at 1 800 898 3211 toll free in the U S and Canada during normal business hours Pacific Time excluding w...

Page 16: ...Road NE Woodinville WA 98072 USA United States and Canada 800 898 3211 Europe Asia Central and South America 425 487 4333 Middle East and Africa 31 20 654 4000 Fax 425 487 4337 www mackie com E mail s...

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