Mackie HRS120 Owner's Manual page 16

Specifications
Enclosure
Materials:
MDF construction with black oak veneer.
Sides: 0.75 in/19 mm thick
Top: 1.5 in/ mm thick
Bottom: 1.00 in/5 mm thick
Internal Volume:
.15 cubic feet/60.88 liters
Transducers
Low-frequency driver:
1-inch/05 mm die-cast frame, oversized ferrite magnet
structure, 4-inch/100 mm voice coil, and over 45 mm cone
excursion
Passive Radiator:
1-inch/05 mm mass-loaded
System Specifications
Crossover Type:
Linkwitz-Riley, 4 dB/octave, variable 55 Hz to 110 Hz
Input Type:
Balanced differential XLR; Unbalanced RCA
Input Impedance:
0kΩ, balanced bridging
10kΩ, unbalanced
Input Sensitivity:
89 dB SPL with a 100 mV (–17.8 dBu) input signal
Maximum Input Level:
+0 dBu
Signal Sense Threshold:
–74 dBu (0.155 mV)
High-Cut Filter (LFE):
7th order elliptical filter @ 110 Hz
Subsonic Filter:
– dB @ 15 Hz, rd-order Butterworth High-Pass filter
Input Protection:
RFI and level protected
Driver Protection:
Power supply tracking peak limiter
Thermal Protection:
Heatsink and Power Transformer temperature, auto reset
21.0 in/
533 mm
16
21.3 in/541 mm
18.8 in/478 mm
18.0 in/457 mm
HRS120
WEIGHT
94 lb/
42.6 kg
Amplifier Section
Rated power output (1% THD @ 100 Hz):
400 watts rms into rated 8Ω load
Burst power output (100 Hz sine with 10% duty cycle):
500 watts
Distortion:
THD (0 Hz-00 Hz, from 1W to –1 dBr=5 W):
< 0.0% (typically 0.005%)
Signal-to-Noise Ratio:
> 107 dB, referenced to 5 watts into 8 ohms
Acoustic Section:
Free-Field Frequency Response:
±1.5 dB, 0 Hz to 150 Hz
Lower cutoff frequency:
Maximum SPL:
Residual noise:
General:
Power Consumption:
80 watts with musical program, loud mix
0 watts quiescent (idle)
Dimensions:
Height (including feet):
Width:
Depth (including grille):
Overall Depth:
Weight:
LOUD Technologies Inc. is always striving to improve our
products by incorporating new and improved materials, com-
ponents and manufacturing methods. Therefore, we reserve
the right to change these specifications at any time without
notice.
18.0 in/457 mm
HIGH RESOLUTION HIGH RESOLUTION
– dB @ 19 Hz
117 dB SPL @ 1m
< 8 dBA SPL @ 1m
1.0 in/5 mm
18.0 in/457 mm
18.8 in/478 mm
1. in/541 mm
94 lb/4.6 kg
19.0 in/
483 mm