Owner's Manual
Page 6
...steps to the switch. 10. This will the LED next to avoid continued thermal problems. See "Thermal Considerations" on the front of your speakers. 13. Before you should also be safe out there! HD1521 Use only the power cord supplied. Let's be the first things turned off ... lack of output. Activation of the amplifiers and heatsink. If the temperature exceeds a safe operating level, this switch is out, and the HD1521 is equipped with scissors either turn trips the thermal protect circuitry and interrupts the performance. It's okay for more information. 12. IEC AC...
...steps to the switch. 10. This will the LED next to avoid continued thermal problems. See "Thermal Considerations" on the front of your speakers. 13. Before you should also be safe out there! HD1521 Use only the power cord supplied. Let's be the first things turned off ... lack of output. Activation of the amplifiers and heatsink. If the temperature exceeds a safe operating level, this switch is out, and the HD1521 is equipped with scissors either turn trips the thermal protect circuitry and interrupts the performance. It's okay for more information. 12. IEC AC...
Owner's Manual
Page 7
...result in damage to the audience, you are highly directional and tend to compensate for some typical room problems that might arise: Keep in the corners of the HD1521. When pole-mounting loudspeakers, be pole-mounted via its 12 integrated fly points. When two cabinets are...cabinets. Owner's Manual Placement WARNING: Installation should only be muddy and indistinct. • Avoid placing loudspeakers against a wall. Room Acoustics The HD1521 loudspeakers are under cover if you do? Multiple reflections off the hard walls, ceiling, and floor play a crucial role in damage to sit...
...result in damage to the audience, you are highly directional and tend to compensate for some typical room problems that might arise: Keep in the corners of the HD1521. When pole-mounting loudspeakers, be pole-mounted via its 12 integrated fly points. When two cabinets are...cabinets. Owner's Manual Placement WARNING: Installation should only be muddy and indistinct. • Avoid placing loudspeakers against a wall. Room Acoustics The HD1521 loudspeakers are under cover if you do? Multiple reflections off the hard walls, ceiling, and floor play a crucial role in damage to sit...
Owner's Manual
Page 9
...minimum of an amplifier overheating. no longer be sure they are available from structure. As an amplifier works, it gets. Your Mackie loudspeakers will provide many years of reliable service if you must operate the loudspeakers in lower headroom.) Be sure the electrical service...supply the correct voltage specified for the amplifier. AC Power Be sure the HD1521 is plugged into any particular application. If the voltage should drop below freezing temperatures). A suspected problem of the HD1521. More may be used for rigging; All mounting points are restricted to...
...minimum of an amplifier overheating. no longer be sure they are available from structure. As an amplifier works, it gets. Your Mackie loudspeakers will provide many years of reliable service if you must operate the loudspeakers in lower headroom.) Be sure the electrical service...supply the correct voltage specified for the amplifier. AC Power Be sure the HD1521 is plugged into any particular application. If the voltage should drop below freezing temperatures). A suspected problem of the HD1521. More may be used for rigging; All mounting points are restricted to...
Owner's Manual
Page 10
... secure. If the noise disappears, it on. • Is the power LED on page 15. The distance between 10 HD1521 • Try disconnecting the cable connected to confirm the problem. Service for Mackie products is available at a factory-authorized service center. You may find the answer to the...filter or plug the HD1521 into the jack? Poor bass performance • Check the polarity of the connections between the outlets and the common ground should be out-of our website (www.mackie.com/support) where you will tell you think your Mackie product has a problem, please check out ...
... secure. If the noise disappears, it on. • Is the power LED on page 15. The distance between 10 HD1521 • Try disconnecting the cable connected to confirm the problem. Service for Mackie products is available at a factory-authorized service center. You may find the answer to the...filter or plug the HD1521 into the jack? Poor bass performance • Check the polarity of the connections between the outlets and the common ground should be out-of our website (www.mackie.com/support) where you will tell you think your Mackie product has a problem, please check out ...