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Acoustic Section
Free-Field Frequency Response:
Lower cutoff frequency:
Upper cutoff frequency:
Sound Pressure Level at 1 meter,
–7.5 dBu into balanced input:
Maximum peak SPL per pair:
Maximum short term SPL on axis,
half space 80 Hz to 2.5 kHz:
Residual noise (maximum gain, 600Ω source,
20 Hz-20 kHz bandwidth):
Rated Line Input Voltage and Power:
Power consumption:
Standby mode:
Quiescent (idle):
Musical Program, Loud mix: 135 watts
US:
120 VAC, 60 Hz
Europe:
240 VAC, 50 Hz
Korea:
220 VAC, 60 Hz
Japan:
100 V, 50-60 Hz
Rated Power
(For UL-6500, CSA-E65-94, EN-60065):
150 watts
Physical Properties
Height:
16.8 in/42.5 cm
Width:
10.8 in/27.3 cm
Depth Enclosure: 11.4 in/29.0 cm
Depth Overall:
13.8 in/35.1 cm
Weight:
34.6 lb/15.7 kg
LOUD Technologies 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.
10.8" (27.3 cm)
±1.5 dB, 37 Hz to 20 kHz
–3 dB @ 35 Hz
–3 dB @ 22 kHz
100 dB SPL @ 1m
120 dB SPL @ 1m
111 dB SPL @ 1m
< 8 dB SPL @ 1m
8 watts
18 watts
13.8" (35.1 cm)
16.8"
(42.5 cm)
11.4" (29.0 cm)
Graphs
HR824 Acoustic Space Filter Response
+5
+4
+3
+2
+1
-0
-1
-2
-3
-4
d
B
-5
u
-6
-7
-8
-9
-10
-11
-12
-13
-14
-15
10
20
50
100
200
HR824 High Frequency EQ Filter Response
+5
+4
+3
+2
+1
-0
-1
-2
-3
-4
d
B
-5
u
-6
-7
-8
-9
-10
-11
-12
-13
-14
-15
10
20
50
100
200
HR824 Low Frequency Filter Response
+5
+3
+1
-1
-3
-5
-7
-9
-11
-13
-15
-17
d
-19
B
-21
u
-23
-25
-27
-29
-31
-33
-35
-37
-39
-41
-43
-45
10
20
30
HR824 MK2
WEIGHT
34.6 lb
(15.7 kg)
500
1k
2k
5k
10k
Hz
500
1k
2k
5k
10k
Hz
40
50
60
70
80
90
100
Hz
Owner's Manual
®
20k
®
20k
®
200
1
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