Mackie HR824mk2 Studio Monitor (2010)

The high-resolution Mackie HR824mk2 Active Studio Reference Monitor sounds as smooth as it looks. The rounded contours of the HR824mk2 monitor's Zero Edge Baffle minimize diffraction to give you a crystal clear audio image of your mix. The Mackie Optimized Waveguide delivers full, articulate mids, while the rear-firing, mass-loaded passive radiator ensures tight bass extension to 37Hz. Acoustic Space, low-frequency (LF) roll-off and high-frequency (HF) controls let you easily tailor the sound to suit your space and taste. And thanks to remarkably linear frequency response, Mackie HR824mk2 audio monitors ensure accurate mix translation. Combine all this with wide, even dispersion, and Mackie HR824mk2 monitors turn your studio's sweet spot into a full-on sweet zone.

• Free-field Frequency Response: &plsumn;1.5dB, 37Hz to 20kHz
• Lower cutoff frequency: -3dB @ 35Hz
• Upper cutoff frequency: -3dB @ 22kHz
• Sound Pressure Level at 1 meter, -7.5dBu into balanced input: 100dB SPL @ 1m
• Maximum peak SPL per pair: 120dB SPL @ 1m
• Maximum short term SPL on axis, half space 80Hz to 2.5kHz: 111dB SPL @ 1m
• Residual noise (maximum gain, 600? source, 20Hz-20kHz bandwidth): < 8dB SPL @ 1m
  

• (Power consumption):
• Standby mode: 8 watts
• Quiescent (idle): 18 watts
• Musical Program, Loud mix: 135 watts
• US: 120 VAC, 60Hz
• Rated Power (For UL-6500, CSA-E65-94, EN-60065): 150 watts

• (Low-frequency power amplifier)
• Rated Power (at 1kHz with 1% THD): 150W
• Rated Load Impedance: 4 ohms
• Burst Power Output: 350W
• Rated THD (1W to -1dB of rated power): 0.1 %
• Slew Rate: 35V/S
• Distortion (THD, SMPTE IMD, DIM 100): <0.035%
  

• (20Hz-20kHz, unweighted, referenced to 150W into 4?):
  > 102dB
• Cooling: Convection
• Design: Class AB, Parametric Servo Feedback
• (High-frequency power amplifier)
• Rated Power(at 1kHz with 1% THD): 100W
• Rated Load Impedance: 6 ohms
• Rated THD (1W to -1dB of rated power): 0.1 %
• Burst Power Output: 210W
• Slew Rate: 35V/S
• Distortion (THD, SMPTE IMD, DIM 100): < 0.035%
  Signal-to-Noise (20Hz-20kHz, unweighted, referenced to 40W into 8?): > 102dB
• Cooling: Convection
• Design: Monolithic IC, Conventional Class AB

• Input Type: Balanced Differential (XLR and 1/4" TRS), Unbalanced (RCA)
• Input Impedance: 20k? Balanced, 10k? Unbalanced
• Input Protection: Rfi and Level Protected
• Maximum Input Level: +20dBu
• Low Frequency filter: -3dB @ 37Hz, 2nd-order transitional high-pass filter, -3dB @ 47Hz, 4th-order Chebyshev high-pass filter, -3dB @ 80Hz, 4th-order Butterworth high-pass filter
• HF Equalization: ±2dB @ 10kHz, shelving
• Acoustic Space: (A position) -4dB @ 50Hz, shelving, (B position) -2dB @ 50Hz, shelving, (C position) flat
• (Compressor)
• Independent high and low-frequency overload detection
• Enclosure Alignment: 6th Order
• Over Excursion Prevention: 2nd Order High-Pass filter
• Low Line Voltage Shut Down: 60% of Nominal Line
• Thermal Protection: Amplifier Shut-Down, Auto Reset
• Muting: 5 seconds at turn-on
• Driver Protection: Independent LF and HF Detection, Overall Compression

• Low-frequency driver:
• Diameter: 8.75 inches (170mm)
• Sensitivity (2.83V, 1m): 91dB SPL
• Nominal Impedance: 4?
• Voice Coil Diameter: 1.6" (40mm)
• Frame: Die-cast magnesium
• Magnet: Ferrite
• Fully shielded: Ferrite opposing magnet
• High-frequency driver: Sensitivity (2.83V, 1m): 91dB SPL
• Nominal Impedance: 6?
• Power Handling (Long Term/Program): 20/50 watts
• Frequency Range: 1.6kHz to 22kHz
• Diaphragm/Suspension: Titanium with polymer suspension
• Voice Coil Diameter: 1.0" (25.4mm)
• Magnet: Neodymium
• Bucking Magnet: Ferrite opposing magnet
• Passive Radiator: 6" x 9" (152mm x 228mm) mass-loaded elliptical flat
• piston with variable thickness filleted-edge rubber surround
• Crossover Type: Modified Linkwitz-Riley, 24dB/octave @ 1900Hz

• Materials and Construction:
• 3?4" (19mm) thick MDF cabinet construction with internal bracing to add to cabinet stiffness
• Piano-black gloss finish
• Die-cast aluminum exponential wave guide for controlled, wide dispersion from high-frequency driver and Zero Edge Baffle to minimize diffraction around the cabinet edges
• Open cell adiabatic "foam fill" acoustical damping material absorbs internal reflections, preventing delayed sound coloration
• Flush-mount connector system allows monitor to be placed against a wall without need for connector clearance

• Height: 16.8"/42.5cm
• Width: 10.8"/27.3cm
• Depth Enclosure: 11.4"/29.0cm
• Depth Overall: 13.8"/35.1cm
• Weight: 34.6lb./15.7kg

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