Mackie HR624 MK2 manual Graphs

Acoustic Section

Free-Field Frequency Response:

±1.5 dB, 49 Hz to 20 kHz

Lower cutoff frequency:	–3 dB @ 45 Hz
Upper cutoff frequency:	–3 dB @ 22 kHz
Sound Pressure Level at 1 meter,
–7.5 dBu into balanced input:		100 dB SPL @ 1m
Maximum peak SPL per pair:		115 dB SPL @ 1m
Maximum short term SPL on axis,
half space 80 Hz to 2.5 kHz:		106 dB SPL @ 1m
Residual noise (maximum gain, 600Ω source,
20 Hz-20 kHz bandwidth):		< 8 dB SPL @ 1m

Rated Line Input Voltage and Power:

Power consumption:

Standby mode:	12 watts
Quiescent (idle):	20 watts

Musical Program, Loud mix: 105 watts Both channels driven into

resistive loading to 1% clipping

(LF 86W/4Ω, HF 38W/8Ω): 255 watts

US:	120 VAC, 60 Hz
Europe:	240 VAC, 50 Hz

Korea (AC Power Selector at 240 V):

220 VAC, 60 Hz

Japan (AC Power Selector at 120 V):

100 V, 50-60 Hz

Rated Power

(For UL-6500, CSA-E65-94, EN-60065):

130 watts

Physical Properties

Height:	13.1 in/33.3 cm
Width:	8.6 in/21.9 cm
Depth Enclosure:	10.3 in/26.2 cm
Depth Overall:	12.6 in/31.9 cm
Internal Volume:	0.29 cubic feet (8.2 liters)
Weight:	23.4 lb/10.6 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.

Graphs

HR624 Acoustic Space Filter Response

+10
+9
+8
+7
+6
+5
+4
+3
+2
+1
dBu -0
-1
-2
-3
-4
-5
-6
-7
-8
-9
-10
20	50	100	200	500	1k	2k	5k	10k	20k

Hz

HR624 High Frequency EQ Filter Response

+10
+9
+8
+7
+6
+5
+4
+3
+2
+1
dBu -0
-1
-2
-3
-4
-5
-6
-7
-8
-9
-10
20	50	100	200	500	1k	2k	5k	10k	20k

Hz

HR624 Low Frequency Filter Response

+10
+8
+6
+4
+2
-0
-2
-4
-6
-8
-10
-12
-14
dBu
-16
-18
-20
-22
-24
-26
-28
-30
-32
-34
-36
-38
-40
20	50	100	200	500	1k	2k	5k	10k	20k

Hz

Manual Owner’s

8.6" (21.9 cm) 12.6" (31.9 cm)

HR624 MK2

WEIGHT 23.4 lb (10.6 kg)

13.1"

(33.3 cm)

10.3" (26.2 cm)

Owner’s Manual 17