15" 2-Way Active Speaker.
The Mackie HD1521 2-Way High-Definition Powered Loudspeaker delivers class-leading power, unmatched clarity and extreme flexibility. Class-D Fast Recovery amplification produces 1600W of peak system power. High-Definition Audio Processing incorporates next-generation Mackie Active electronics and re-defines powered loudspeakers. System tuning and custom transducer design by EAW ensures an optimized system that sounds great every time.
The HD1521 incorporates the latest in Class-D amplifier technology to deliver a chest-pounding 1600W of peak system power. All three internal amps are designed using Mackie's legendary Fast Recovery circuitry. Other amplifiers can latch when pushed to clipping, leading to distorted audio, but Fast Recovery amplification reacts instantly to the occasional aggressive transient, drastically reducing the time it takes for the amp to recover, ensuring clean audio under the most demanding of situations.
Mackie incorporate precision crossovers and transducer time/phase alignment processing into the loudspeaker. This instantly took the guesswork out of setting up a perfectly tuned system and the world of loudspeakers irreversibly changed. HD Series High-Definition Powered Loudspeakers not only advance Active technology, they take it to an entirely new level, marking the next major advancement for powered loudspeakers: High-Definition Live Sound.
The HD1521 is a perfectly tuned system that is truly greater than the sum of its parts. This is only possible due to the hard work and insane genius of the engineering team over at Eastern Acoustic Works (EAW). Not only did they fine tune the system for complete optimization, they also custom-designed the transducers, ensuring maximum efficiency and performance. The high-end 15" neodymium woofer features a 3" voice coil and is built to handle the massive power delivered by the low-frequency amplifier. The magnet is made using neodymium, which provides a greater magnetic field with far less material. This makes the woofer extremely lightweight without sacrificing one bit of performance. And the large 3" voice-coil is built to handle and dissipate far more heat than traditional designs. A 6" mid-range driver takes care of all the mids, leaving the woofer to do what it does best. The 1.75" compression driver brilliantly reproduces high-frequencies with a diaphragm made using heat-treated titanium. Heat-treating increases the rigidity of the diaphragm, eliminating nasty distortion that can occur due to inconsistencies on its surface. It also greatly increases the life of the driver, so you can count on stunning high-frequency production for years.
Improving on traditional hi/mid horn designs, the HD1521 implements Mackie's optimized wide-dispersion WaveFront system to focus energy directly at your audience, ensuring optimum intelligibility for every seat in the house. The premium drivers, waveguide and system tuning allow the HD1521 to achieve the most output and best possible sound from every single component
For added flexibility, Mackie have included a user-adjustable 3-band EQ on the rear panel of every HD Series loudspeaker. It's not just a two-position EQ switch that can only bet set to flat or boost, but a high-quality 3-band EQ with Hi and Lo shelving and a sweepable mid frequency, each with +/- 3dB of gain. This allows you to customize the loudspeakers for the task at hand.
•15'' 2-way high-definition powered loudspeaker system
•1600-watts of Class-D fast recovery amplification
•Custom designed transducers by EAW
•15'' neodymium woofer with 3'' voice coil
•1.75'' compression driver with heat-treated titanium diaphragm
•High-definition audio processing
•Revolutionary patented acoustic correction
•Transducer time alignment & phase correction
•Precision 2-way crossover
•User-adjustable 3-band contour EQ with sweepable mid-frequency
•Integrated limiting & protection circuitry
•Ultra-compact & lightweight
•Rugged all-wood cabinet
•12 integrated fly points for horizontal & vertical rigging using M10 threaded eyebolts
•Stand / pole mountable
•Acoustic Performance
•Frequency Response (-3 dB): 50Hz - 18kHz
•Frequency Response (-10 dB): 40Hz - 20kHz
•Horizontal Coverage (-6 dB): 80° Averaged, 2kHz to 10kHz
•Vertical Coverage (-6 dB): 50° Averaged, 2kHz to 10kHz
•Directivity Factor; Q (DI): 14.0 (11.4) Averaged, 2kHz to 10kHz
•Max Peak SPL (Calculated): 135 dB @ 1m
•Max Peak SPL (Measured): 125 dB @ 1m
•Crossover Point: 1200Hz
•Input / Output
•Input Type: Female XLR Balanced Differential
•Input Impedance: 11k? Balanced
•Loop Out: Male XLR Balanced
•Equalisation
•Low Shelving: ±3 dB @ 80Hz (6 dB / octave)
•Mid Peaking: ±3 dB @ 100Hz to 8kHz, Q=1.5
•High Shelving: ±3 dB @ 12kHz (6 dB / octave)
•Low-Frequency Power Amplifier
•Output: 700W RMS / 1400W Peak
•Rated THD: <0.03 Percent
•Cooling: Convection Extrusion
•Design: Class D
•High-Frequency Power Amplifier
•Output: 100W RMS / 200W Peak
•Rated THD: <0.03 Percent
•Cooling: Convection Extrusion
•Design: Class D
•Low-Frequency Transducer
•Diameter: 15''
•Voice Coil Diameter: 3''
•Diaphragm Material: Paper
•Magnet Material: Neodymium
•High-Frequency Transducer
•Voice Coil Diameter: 1.75''
•Horn Entry Diameter: 1''
•Line Input Power
•Europe: 200-240 VAC, 50/60Hz, 1050W
•Recommended Amperage Service: 5 Amps
•AC Connector: 3-Pin IEC 250 VAC
•Safety Features: RMS Limiting, Power Supply and Amplifier Thermal Protection
•Construction Features
•Basic Design: Trapezoidal, 20° Included Angle
•Material: 15mm Exterior Grade Premium Birch Plywood
•Finish: High Durability Black Paint
•Handles: One On Each Side, One On Top
•Grille: Powder-Coated Galvanised Steel
•Display LEDs: Power ON, EQ ON, Sig / Limit, Thermal Protection, Front Power Light ON
•Fly Points: 12 M10 x 1.5 mm
•Operating Temperature: 0° - 40°C
•Weight: 36.3 kg
•Dimensions
•Height: 762 mm
•Front Width: 464 mm
•Rear Width: 300 mm
•Depth: 478 mm