12
MR524 • MR624 • MR824 Powered Studio Monitors
MR5
24 • MR6
24 • MR824 P
o
w
er
ed Studio Monit
ors
Appendix B: Technical Information
AC Power Requirements
Power Requirements:
~120 V, 60 Hz
~220 V – 240 V, 50/60 Hz
~100 V, 50/60 Hz
Note:
MR monitors do not support multiple voltage
configurations. Make sure the voltage rating for your
particular model (as indicated on the rear panel near the
IEC socket) corresponds with your local AC mains voltage.
AC Connector:
3-pin IEC 250 VAC, 15 A male
Fuse:
115 VAC: T 1 AL / 250 V
230 VAC: T 500 mAL / 250 V [MR524]
115 VAC: T 1.6 AL / 250 V
230 VAC: T 800 mAL / 250 V [MR624]
115 VAC: T 2 AL / 250 V
230 VAC: T 1 AL / 250 V [MR824]
Power Consumption:
90 watts with music, loud mix
10 watts quiescent (idle) [MR524]
120 watts with music, loud mix
11 watts quiescent (idle) [MR624]
150 watts with music, loud mix
12 watts quiescent (idle) [MR824]
Physical Dimensions and Weight
MR524:
Enclosure:
0.47 in / 12 mm thick MDF with
0.83 in / 21 mm MDF front panel
Dimensions:
Height:
11.1 in / 281 mm
Width:
7.1 in / 180 mm
Depth:
8.7 in / 221 mm
Weight:
10.2 lb / 4.6 kg
MR624:
Enclosure:
0.47 in / 12 mm thick MDF with
0.94 in / 24 mm MDF front panel
Dimensions:
Height:
12.9 in / 328 mm
Width:
8.3 in / 210 mm
Depth:
11.2 in / 284 mm
Weight:
16.5 lb / 7.5 kg
MR824:
Enclosure:
0.59 in / 15 mm thick MDF with
1.30 in / 33 mm MDF front panel
Dimensions:
Height:
15.7 in / 400 mm
Width:
10.1 in / 256 mm
Depth:
12.6 in / 320 mm
Weight:
23.0 lb / 10.4 kg
Damping:
Adiabatic batting [MR524/624/824]
Disclaimer
LOUD Technologies Inc. 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.
MR Specifications
Acoustic Performance
Frequency Response (–3 dB):
57 Hz – 20 kHz [MR524]
45 Hz – 20 kHz [MR624]
38 Hz – 20 kHz [MR824]
Frequency Response (–10 dB):
45 Hz – 20 kHz [MR524]
38 Hz – 20 kHz [MR624]
35 Hz – 20 kHz [MR824]
Sound Pressure Level @ 1 meter, +4 dBu into Balanced Input:
102 dB SPL @ 1m [MR524]
105 dB SPL @ 1m [MR624]
107 dB SPL @ 1m [MR824]
Maximum SPL Per Pair:
108 dB SPL @ 1m [MR524]
111 dB SPL @ 1m [MR624]
113 dB SPL @ 1m [MR824]
Transducers
Low Frequency:
5.25 in / 133 mm
polypropylene
woofer
[MR524]
6.5 in / 165 mm
polypropylene
woofer
[MR624]
8.0 in / 203 mm
polypropylene
woofer
[MR824]
High Frequency:
Neodymium magnet driven
1 in / 25 mm silk dome tweeter
Amplifiers
Low Frequency Power:
30 watts, 4
Ω
load,
60 watts peak [MR524]
40
watts,
4
Ω
load,
80 watts peak [MR624]
55
watts,
4
Ω
load,
110 watts peak [MR824]
High Frequency Power:
20 watts, 6
Ω
load,
40 watts peak [MR524]
25
watts,
6
Ω
load,
50 watts peak [MR624]
30
watts,
6
Ω
load,
60 watts peak [MR824]
Type:
Monolithic IC, Class AB with
DMOS
power
stage
Electronic Crossover
Crossover Type:
24 dB/octave
Crossover Frequency:
2 kHz [MR524]
3
kHz
[MR624]
1.9
kHz
[MR824]
Sensitivity:
+4 dBu at 300 Hz for full output
Input Impedance:
20 k
Ω
, balanced bridging;
10
k
Ω
unbalanced
Equalization
High Frequency EQ:
±2 dB @ 3 kHz and above
[MR524 / 624 / 824]
