User manual MACKIE HD1521

[. . . ] HD1521 2-Way High-Definition Powered Loudspeaker OWNER'S MANUAL HD1521 ImportantSafetyInstructions 1. Donotblockanyventilationopenings. Installinaccordancewiththe manufacturer'sinstructions. Donotinstallnearanyheatsourcessuchasradiators, heatregisters, stoves, orotherapparatus(includingamplifiers)thatproduceheat. Donotdefeatthesafetypurposeofthepolarizedorgrounding-type plug. Apolarizedplughastwobladeswithonewiderthantheother. [. . . ] If the distance between the front and back speakers is more than about 100 feet, you should use a delay processor to time-align the sound. (Since sound travels about 1 foot per millisecond, it takes about 1/10 of a second to travel 100 feet. ) Owner's Manual · · · · Room Acoustics The HD1521 loudspeakers are designed to sound neutral; that is, to reproduce the input signal as accurately as possible. Room acoustics play a crucial role in the overall performance of a sound system. Here are some additional placement tips to help overcome some typical room problems that might arise: Keep in mind that the Contour EQ is a great way to compensate for some of these issues. Owner's Manual HD1521 Rigging HD1521s may be individually flown horizontally or vertically using M10 X 1. 5 X 37 mm forged shoulder eyebolts. WARNING: Installation should only be done by an experienced technician. Improper installation may result in damage to the equipment, injury or death. Make sure that the loudspeaker is installed in a stable and secure way in order to avoid any conditions that may be dangerous for persons or structures. WARNING: The cabinet is suitable for rigging via its fly points. NEVER attempt to suspend the HD1521 by its handles. RiggingDesignPractices Rigging a loudspeaker requires determining: 1. The rigging methods and hardware that meet static, shock, dynamic, and any other load requirements for supporting the loudspeaker from structure. The design factor for and the required WLL (Working Load Limit) for this support. Mackie strongly recommends the following rigging practices: 1. Documentation: Thoroughly document the design with detailed drawings and parts lists. Analysis: Have a qualified professional, such as a licensed Professional Engineer, review and approve the design before its implementation. Installation: Have a qualified professional rigger do the installation and inspection. Safety: Use adequate safety precautions and backup systems. 1 Fly Points MP MP MP MP=Mounting Point MP MP MP MP MP MP MP MP Two per side Two on the rear Three each on the top and bottom Flown Horizontally Rear Fly Points (adjust angle) Top Fly Points Flown Vertically Side Fly Points Lower Rear Fly Point (adjusts angle) HD151 RiggingHardwareandAccessories Rigging Mackie loudspeakers will invariably require hardware not supplied by Mackie. Various types of loadrated hardware are available from a variety of thirdparty sources. There are a number of such companies specializing in manufacturing hardware for, designing, and installing rigging systems. Each one of these tasks is a discipline in its own right. Because of the hazardous nature of rigging work and the potential liability, engage companies that specialize in these disciplines to do the work required. Mackie does offer certain accessory rigging items, primarily for attachment to the hardware integral with the loudspeaker. Some items, such as eyebolts, may be used with a variety of products. [. . . ] For example, if your mixer has an output impedance of 120 ohms, then you can daisy chain up to nine HD1521s. This is a load of 1222 ohms (HD1521 input impedance=11 kohms; 9 of these in parallel=1222 ohms). Since microphones typically have a higher output impedance, you should limit daisy-chaining from a mic source to two HD1521s. The loop out jack is wired straight from the main input connector -- there is no electronic circuitry between -- so the signal coming out of the loop out jack is exactly the same as the signal going in. Owner's Manual 11 HD1521 AppendixC:TechnicalInformation HD151 Specifications Acoustic Performance: Frequency Response (-10 dB) Frequency Response (-3 dB) Horizontal Coverage (-6 dB) Vertical Coverage (-6 dB) Directivity Index (dB) Directivity Factor (Q) Max peak SPL (calculated)1 Max peak SPL (measured)2 Crossover Point 40 Hz-20 kHz 50 Hz-18 kHz 80 degrees averaged 2 kHz to 10 kHz 50 degrees averaged 2 kHz to 10 kHz 11. 4 averaged 2 kHz to 10 kHz 14. 0 averaged 2 kHz to 10 kHz 135 dB 125 dB 1200 Hz Power Amplifiers Low Frequency Power Amplifier Rated Power Rated THD Design High Frequency Power Amplifier Rated Power Rated THD Design 100 watts rms 200 watts peak < 0. 03% Class D 700 watts rms 1400 watts peak < 0. 03% Class D Input/Output Input Type Input Impedance Loop Out Female XLR balanced 11 kohm balanced Male XLR balanced Equalization Contour EQ Low Shelving Mid-Peaking High Shelving -3 dB to +3 dB 80 Hz, 6 dB / octave -3 dB to +3 dB 100 Hz to 8 kHz, Q=1. 5 -3 dB to +3 dB 12 kHz, 6 dB / octave Line Input Power US model Recommended Service European model Recommended Service AC Connector 120 VAC, 60 Hz 9 amps 230 VAC, 50 Hz 5 amps 3-pin IEC 250 VAC High-Frequency Section Voice Coil Diameter Horn Entry Diameter Diaphragm Material Magnet Material 1. 75" / 44. 5 mm 1. 0" / 25 mm Heat-treated titanium Ferrite Safety Features Input Protection: Display LEDs: RMS limiting, power supply and amplifier thermal protection Power ON, EQ ON, Sig/Limit, Thermal protection, Front Power ON Low-Frequency Section Woofer Diameter Voice Coil Diameter Diaphragm Material Magnet Material 15. 0" / 381 mm 3. 0" / 76. 2 mm Paper Neodymium Construction Features Basic Design Cabinet Finish Handles Grille Fly Points Trapezoidal, 20 degree included angle 15 mm exterior grade premium birch plywood High durability black paint One on each side Powder-coated galvanized steel Twelve M10 x 1. 5 mm 1 Calculated from driver sensitivity and amplifier power. 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