Interacoustics AC40 Service Manual

AC40 Service Manual Page 9
ANSI Free Field
ANSI Free Field
ANSI S3.6-2010 Free Field max SPL
Free Field max HL is found by subtracting the selected RETSPL value
Binaural Monaural Free Field Power Free Field Line
0° 45° 90° 0° 45° 90° Tone NB Tone NB
Frequency RETSPL RETSPL RETSPL RETSPL RETSPL RETSPL Max SPL Max SPL Max SPL Max SPL
125
22.0
21.5
21.0
24.0
23.5
23.0
97
82
102
97
160 18.0 17.0 16.5 20.0 19.0 18.5 93 83 98 93
200 14.5 13.5 13.0 16.5 15.5 15.0 94.5 84.5 104.5 99.5
250 11.5 10.5 9.5 13.5 12.5 11.5 96.5 86.5 106.5 101.5
315 8.5 7.0 6.0 10.5 9.0 8.0 93.5 83.5 103.5 98.5
400 6.0 3.5 2.5 8.0 5.5 4.5 96 86 106 101
500 4.5 1.5 0.0 6.5 3.5 2.0 94.5 84.5 104.5 99.5
630 3.0 -0.5 -2.0 5.0 1.5 0.0 93 83 103 98
750 2.5 -1.0 -2.5 4.5 1.0 -0.5 92.5 82.5 102.5 97.5
800 2.0 -1.5 -3.0 4.0 0.5 -1.0 92 87 107 102
1000 2.5 -1.5 -3.0 4.5 0.5 -1.0 92.5 82.5 102.5 97.5
1250 3.5 -0.5 -2.5 5.5 1.5 -0.5 93.5 83.5 103.5 98.5
1500 2.5 -1.0 -2.5 4.5 1.0 -0.5 92.5 82.5 102.5 97.5
1600 1.5 -2.0 -3.0 3.5 0.0 -1.0 96.5 86.5 106.5 101.5
2000 -1.5 -4.5 -3.5 0.5 -2.5 -1.5 93.5 83.5 103.5 98.5
2500 -4.0 -7.5 -6.0 -2.0 -5.5 -4.0 91 81 101 96
3000 -6.0 -11.0 -8.5 -4.0 -9.0 -6.5 94 84 104 94
3150 -6.0 -11.0 -8.0 -4.0 -9.0 -6.0 94 84 104 94
4000 -5.5 -9.5 -5.0 -3.5 -7.5 -3.0 94.5 84.5 104.5 99.5
5000 -1.5 -7.5 -5.5 0.5 -5.5 -3.5 93.5 83.5 108.5 98.5
6000 4.5 -3.0 -5.0 6.5 -1.0 -3.0 94.5 84.5 104.5 99.5
6300 6.0 -1.5 -4.0 8.0 0.5 -2.0 96 86 106 96
8000 12.5 7.0 4.0 14.5 9.0 6.0 87.5 72.5 92.5 87.5
WhiteNoise 0.0 0.0 0.0 0.0 0.0 0.0 90 100
IEC Free Field
IEC Free Field
ISO 389-7 2005 Free Field max SPL
Free Field max HL is found by subtracting the selected RETSPL value
Binaural Monaural Free Field Power Free Field Line
0° 45° 90° 0° 45° 90° Tone NB Tone NB
Frequency RETSPL RETSPL RETSPL RETSPL RETSPL RETSPL Max SPL Max SPL Max SPL Max SPL
125 22.0 21.5 21.0 24.0 23.5 23.0 97 82 102 97
160 18.0 17.0 16.5 20.0 19.0 18.5 93 83 98 93
200 14.5 13.5 13.0 16.5 15.5 15.0 94.5 84.5 104.5 99.5
250 11.5 10.5 9.5 13.5 12.5 11.5 96.5 86.5 106.5 101.5
315 8.5 7.0 6.0 10.5 9.0 8.0 93.5 83.5 103.5 98.5
400 6.0 3.5 2.5 8.0 5.5 4.5 96 86 106 101
500 4.5 1.5 0.0 6.5 3.5 2.0 94.5 84.5 104.5 99.5
630 3.0 -0.5 -2.0 5.0 1.5 0.0 93 83 103 98
750 2.5 -1.0 -2.5 4.5 1.0 -0.5 92.5 82.5 102.5 97.5
800 2.0 -1.5 -3.0 4.0 0.5 -1.0 92 87 107 102
1000 2.5 -1.5 -3.0 4.5 0.5 -1.0 92.5 82.5 102.5 97.5
1250 3.5 -0.5 -2.5 5.5 1.5 -0.5 93.5 83.5 103.5 98.5
1500 2.5 -1.0 -2.5 4.5 1.0 -0.5 92.5 82.5 102.5 97.5
1600 1.5 -2.0 -3.0 3.5 0.0 -1.0 96.5 86.5 106.5 101.5
2000 -1.5 -4.5 -3.5 0.5 -2.5 -1.5 93.5 83.5 103.5 98.5
2500 -4.0 -7.5 -6.0 -2.0 -5.5 -4.0 91 81 101 96
3000 -6.0 -11.0 -8.5 -4.0 -9.0 -6.5 94 84 104 94
3150 -6.0 -11.0 -8.0 -4.0 -9.0 -6.0 94 84 104 94
4000 -5.5 -9.5 -5.0 -3.5 -7.5 -3.0 94.5 84.5 104.5 99.5
5000 -1.5 -7.5 -5.5 0.5 -5.5 -3.5 93.5 83.5 108.5 98.5
6000 4.5 -3.0 -5.0 6.5 -1.0 -3.0 94.5 84.5 104.5 99.5
6300 6.0 -1.5 -4.0 8.0 0.5 -2.0 96 86 106 96
8000 12.5 7.0 4.0 14.5 9.0 6.0 87.5 72.5 92.5 87.5
WhiteNoise 0.0 0.0 0.0 0.0 0.0 0.0 90 100
¹The Binaural to Monaural correction on +2dB come from ANSI S3.6 -2004
The difference between 0° - 45° - 90° come from ISO 8253-2 1998.
The maximum free field levels depend on the amplifier, speaker and the acoustic conditions of the room. The actual maximum levels are found
using the Custom Max function in the calibration software.

Interacoustics AC40 Specifications

General

Brand	Interacoustics
Model	AC40
Category	Measuring Instruments
Language	English