Free Field Speakers
– ANSI RETSPL and Max HL
ANSI Free Field
ANSI S3.6-2010
Max HL
1
Binaural
ISO 389-7
Basic
Speakers
GSI High
Performance
Speakers
GSI High Performance
Speakers with external
Amplifier
0°
45°
90°
45°
45°
45°
Hz
RETSPL
dB
RETSPL
dB
RETSPL
dB
HL dB
HL dB
HL dB
125
22.1
21.6
21.1
70
70
75
250
11.4
10.4
9.4
65
65
90
500
4.5
1.4
-0.1
95
95
110
750
2.4
-1.1
-2.6
100
100
110
1000
2.4
-1.6
-3.1
100
100
110
1500
2.4
1.1
-2.6
100
100
110
2000
-1.3
-4.3
-3.3
100
100
115
3000
-5.8
-10.8
-8.3
105
105
115
4000
-5.4
-9.4
-4.9
105
105
115
6000
4.3
-3.2
-5.2
95
95
105
8000
12.6
7.1
4.1
80
80
75
9000
13.8
8.8
6.8
10000
13.9
9.4
7.9
11200
13
9
6
12500
12.3
10.8
4.3
14000
18.4
16000
40.2
18000
73.2
Speech
14.5
12.5
11.0
90
2
96
2
102
2
1)
When using the Calibration App, the Custom Max procedure must be utilized.
2)
To achieve the maximum output level the crest factor per ANSI S3.6 (2010) is reduced.