Mackie HR624 MK2 Active Monitor

Full Description

High-end sound reproduction

The Mackie HR624mk2 Active Monitor surpasses the legendary performance of its HR predecessors to deliver improved sound quality. The precisely engineered curvatures of the one-piece cast aluminium Zero Edge Baffle minimises diffraction for a pristine image of your mix. Controlling sound waves so you get detailed lows, full, articulate mids, and shimmering highs. Containing separate onboard amplifiers for each driver, onboard active crossovers, and time-correction circuitry. The HR624mk2 ensures highs and lows reach your ears at the same time for a gorgeous, all-consuming sound.

Superior design

Boasting custom internal bracing within its beautiful wood cabinet, the HR624mk2 has increased strength and rigidity. Entirely reliable no matter where you choose to put it. It also absorbs internal reflections and dampens standing waves inside the cabinet. An open-cell adiabatic foam material has also been strategically placed inside the box. Featuring a passive radiator instead of the port found on most speaker systems, it is able to reproduce low frequencies with lower distortion and at a higher SPL. This monitor can promise you a crystal-clear, sharp sound.

Specifications

Transducers

• Low Frequency:
  • Diameter: 6.7'' / 170mm
  • Sensitivity: 89dB SPL (2.83V, 1m)
  • Nominal Impedance: 4 Ohms
  • Voice Coil: 1.25'' / 32mm
  • Power Handling: 50W (Continuous) / 150W (Program)
  • Frame: Die-cast magnesium
  • Magnet: Ferrite
  • Fully Shielded: Ferrite opposing magnet
  • Frequency Range: 45Hz - 6kHz
• High Frequency:
  • Sensitivity: 91dB SPL (2.83V, 1m)
  • Nominal Impedance: 6 Ohms
  • Voice Coil: 1'' / 25.4mm
  • Diaphragm / Suspension: Titanium with polymer suspension
  • Magnet: Neodymium
  • Bucking Magnet: Ferrite opposing magnet
• Passive Radiator: 6'' x 9'' mass-loaded elliptical flat piston with variable thickness filleted edge rubber surround
• Crossover Type: Modified Linkwitz-Riley, 24dB/octave at 3kHz

Amplifier

• Low Frequency:
  • Rated Power: 100W (at 1kHz with 1-percent THD)
  • Rated Load Impedance: 4 Ohms
  • Rated THD: 0.1-percent (1W to -1dB of rated power)
  • Slew Rate: 15V/µS
  • Distortion: Less than 0.0355-percent (THD, SMPTE IMD, DIM 100)
  • Signal-to-Noise: Greater than 101dB (20Hz-20kHz, unweighted, referenced to 100W into 4 Ohms)
  • Cooling: Convection
  • Design: Monolithic IC, Class AB, Parametric Servo Feedback
• High Frequency:
  • Rated Power: 40W (at 1kHz with 1-percent THD)
  • Rated Load Impedance: 6 Ohms
  • Rated THD: 0.1-percent (1W to -1dB of rated power)
  • Slew Rate: 15V/µS
  • Distortion: Less than 0.035-percent (THD, SMPTE IMD, DIM 100)
  • Signal-to-Noise: Greater than 93dB (20Hz-20kHz, unweighted, referenced to 40W into 8 Ohms)
  • Cooling: Convection
  • Design: Conventional Class AB

System

• Input Type:
  • Balanced Differential (XLR and 1/4'' TRS)
  • Unbalanced (RCA)
• Input Impedance:
  • Balanced: 20k Ohms
  • Unbalanced: 10k Ohms
• Input Protection: RFI and Level protected
• Maximum Input Level: +20dBu
• Low Frequency Filter: 80Hz, 2nd Order, Butterworth
• HF EQ: Shelving, +/-2dB at 10kHz
• Acoustic Space:
  • A Position: -4dB at 50Hz, shelving
  • B Position: -2dB at 50Hz, shelving
  • C Position: Flat
• Compressor: Independent high and low-frequency overload detection
• Enclosure Alignment: 6th Order
• Over Excursion Prevention: 2nd Order HPF
• Low Line Voltage Shut Down: 60-percent of Nominal Line
• Thermal Protection: Amplifier Shut-Down, Auto Reset
• Muting: 5 seconds at turn-on
• Signal Sense Threshold: -74dBu (0.155mV)
• Driver Protection: Independent LF and HF Detection, Overall Compression

Acoustics

• Free-Field Frequency Response: +/-1.5dB, 49Hz to 20kHz
• Lower Cutoff Frequency: -3dB at 45Hz
• Upper Cutoff Frequency: -3dB at 22kHz
• SPL at 1m: 100dB SPL (-7.5dBu into balanced input)
• Maximum Peak SPL per Pair: 115dB SPL at 1m
• Maximum Short Term SPL on Axis: 106dB SPL at 1m (half space 80Hz to 2.5kHz)
• Residual Noise: Less than 8dB SPL at 1m (maximum gain, 600 Ohm source, 20Hz-20kHz bandwidth)

Enclosure

• Construction: 3/4'' (19mm) thick MDF cabinet with internal bracing
• Finish: Piano black, gloss
• Wave Guide: Die-cast aluminium exponential wave guide
• Damping: Open cell adiabatic 'foam fill' acoustical damping material
• Connectors: Flush-mount connector system

Physical and Power

• Power Consumption:
  • Standby Mode: 12W
  • Idle: 20W
  • Musical Program: 105W (loud mix)
  • Resistive Loading into 1-Percent Clipping: 255W (LF 86W/4 Ohms, HF 38W/8 Ohms)
• Voltage:
  • US: 120VAC, 60Hz
  • Europe: 240VAC, 50Hz
• Rated Power: 130W (for UL-6500, CSA-E65-94, EN-600065)
• Dimensions: 333mm x 219mm x 319mm / 13.1'' x 8.6'' x 12.6'' (H x W x D)
• Enclosure Depth: 262mm / 10.3''
• Weight: 10.6kg / 23.4lbs
• Product Code: 2034161-03