Specifications - Mackie HR824 Service Manual

SPECIFICATIONS

Amplifier Section
Low-frequency amplifier:
Rated power output: 150 watts, 4Ω load
Burst power output:
Distortion: THD:
SMPTE IMD:
DIM 100:
Slew Rate: > 35V/µs
Signal-to-Noise Ratio: > 102 dB, referenced to
150 watts into a 4Ω load
High-frequency amplifier:
Rated power output: 100 watts, 6Ω load
Burst power output:
Distortion: THD:
SMPTE IMD:
DIM 100:
Slew Rate:
Signal-to-Noise Ratio: > 102 dB, referenced to
100 watts into a 6Ω load
Crossover Section
Crossover Type:
Modified Linkwitz-Riley, 24dB/octave @ 2kHz
Input Impedance:
20kΩ, balanced bridging
Compressor:
Independent high and low frequency overload
detection
Acoustic Space Equalization:
A position: –4 dB @ 100Hz, shelving
B position: –2 dB @ 100Hz, shelving
C position: flat
Low Freq Filter:
–3 dB @ 35Hz
–3 dB @ 47Hz
–3 dB @ 80Hz
High Freq Equalization:
± 2 dB @ 10kHz, shelving
Transducers
Low-frequency driver:
8.75-inch (222mm) die-cast magnesium frame,
mineral-filled polypropylene cone.
High-frequency driver:
1-inch (25.4mm) viscous edge-damped aluminum-
alloy dome with ferrofluid-cooled voice coil.
Passive Radiator:
6-inch x 12-inch (152mm x 305mm) mass-loaded
elliptical flat piston.
8
350 watts
< 0.035%
< 0.035%
< 0.035%
210 watts
< 0.035%
< 0.035%
< 0.035%
> 35V/µs
Acoustic Section:
Free-Field Frequency Response:
±1.5 dB, 39Hz to 20kHz
Lower cutoff frequency:
Upper cutoff frequency:
Sound Pressure Level at 1 meter,
–7.5dBu into balanced input:
Maximum short term SPL on axis,
half space 80Hz to 2.5kHz:
Residual noise (maximum gain, 600Ω Ω Ω Ω Ω source,
20Hz-20kHz bandwidth):
Maximum peak SPL per pair:
Enclosure
Materials and Construction:
3/4- inch (19mm) thick MDF construction with
1-inch (25.4mm) thick MDF front panel.
Proprietary die-cast zinc exponential wave
guide for high-frequency driver.
Open cell adiabatic "foam fill" acoustical
damping material.
General:
Power Consumption:
135 watts with musical program, loud mix
18 watts quiescent (idle)
8 watts in Standby mode
AC Dropout Voltage:
120V AC versions:
240V AC versions:
Weight: 33 lbs. 10 oz. (15.25 kg)
Dimensions (HxWxD):
15.75" (400mm) x 10.00" (254mm) x 12.20"
(310mm)
Mackie Designs is always striving to improve our
products by incorporating new and improved
materials, components and manufacturing
methods. Therefore, we reserve the right to
change these specifications at any time without
notice.
–3 dB @ 37Hz
–3 dB @ 22kHz
100 dB SPL @ 1m
110 dB SPL @ 1m
< 8 dB SPL @ 1m
120 dB SPL @ 1m
80V AC
160V AC