Interacoustics AD629 - Page 49

D-0133833-A – 2022/09
AD629 - Instructions for Use - EN Page 46
Speech
Frequency Response:
(Typical)
Frequecy
(Hz)
Linear (dB)
Ext sign
1
Int.
Sign
2
FFequv (dB
Ext sign
1
Int.
Sign
2
TDH39
(IEC 60318-3
Coupler)
125-250
250-
4000
4000-
6300
+0/-2
+2/-2
+1/-0
+0/-2
+2/-1
+1/-0
+0/-8
+2/-2
+1/-0
+0/-8
+2/-2
+1/-0
DD65v2
(IEC 60645-1
Coupler)
125-250
250-
4000
4000-
6300
+0/-2
+1/-1
+0/-2
+1/-0
+1/-1
+0/-2
+0/-
+2/-2
+1/-1
+0/-7
+2/-3
+1/-1
E.A.R Tone 3A
(IEC 60318-5
Coupler)
250-
4000
+2/-3 +4/-1 (Non
linear)
IP 30
(IEC 60318-5
Coupler)
250-
4000
+2/-3
+4/-1
(Non linear)
B71 Bone
Conductor
(IEC 60318-6
Coupler)
250-
4000
+12/-
12
+12/-
12
(Non linear)
2% THD at 1000 Hz max
output +9 dB (increasing at
lower frequency)
Level range: -10 to 50
dB HL
1. Ext. sign: CD input
2. Int. sign: Wave
files
External signal
Speech replaying equipment connected to the CD input must have a signal-
to-noise ratio of 45 dB or higher.
The speech material used must include a calibration signal suitable for
adjusting the input to 0 dBVU.
Free Field
Power amplifier and loudspeakers
With an input of 7 Vrms - Amplifier and loudspeakers must be able to create
a Sound Pressure Level of 100 dB in a distance of 1 meter - and meet the
following requirements:
Frequency Response
125-250 Hz +0/-10 dB
250-4000 Hz ±3 dB
4000-6300 Hz ±5 dB
Total Harmonic Distortion
80 dB SPL < 3%
100 dB SPL < 10%
Internal storage
1000 clients / 50.000 sessions