Mackie SRM450 - Hearing Protection and Noise Awareness; Understanding Noise-Induced Hearing Loss; Recommended Hearing Protection

Active Speaker System
SRM450
SPEAKER
SRM450
oF 6 PA GE S
2
O F 6 P A G E S
Active Speaker System
SRM450
oF 6 PA GE S
3
O F 6 P A G E S
Active Speaker System
SRM450
oF 6 PA GE S
4
O F 6 P A G E S
SRM450 Vertical Off-Axis Frequency
Response (UP)
SRM450 Vertical Off-Axis Frequency
Response (DOWN)
Frequency (Hz)
Attenuation (dB)
20 100 1000 10000 20000
–30
–20
–10
0
10
0 deg
10 deg
20 deg
30 deg
40 deg
Frequency (Hz)
Attenuation (dB)
20 100 1000 10000 20000
–30
–20
–10
0
10
0 deg
–10 deg
–20 deg
–30 deg
–40 deg
30°
60
°
90°
120
°
150
°
180
°
210
°
240
°
270
°
300
°
330
°
0°
200Hz
250Hz
315Hz
400Hz
–12
–36
30°
60
°
90
°
120°
150
°
180°
210
°
240
°
270
°
300
°
330
°
0°
500Hz
630Hz
800Hz
1kHz
–12
–36
30°
60
°
90
°
120
°
150
°
180
°
210
°
240
°
270
°
300
°
330
°
0°
1.25kHz
1.6kHz
2kHz
2.5kHz
–12
–36
30°
60
°
90
°
120
°
150
°
180
°
210°
240
°
270
°
300°
330
°
0°
3.15kHz
4kHz
5kHz
6.3kHz
–12
–36
8kHz
10kHz
12.5kHz
16kHz
30°
60°
90
°
120
°
150
°
180
°
210
°
240
°
270
°
300
°
330
°
–12
–36
0°
SRM450 Vertical Polars