Interacoustics AD629 Instructions For Use Manual page 49

Speech
External signal
Free Field
Internal storage
D-0133833-A – 2022/09
AD629 - Instructions for Use - EN
Frequency Response:
(Typical) Frequecy
125-250
TDH39
(IEC 60318-3 250-
4000
Coupler)
4000-
6300
125-250
DD65v2
250-
(IEC 60645-1
4000
Coupler)
4000-
6300
250-
E.A.R Tone 3A
4000
(IEC 60318-5
Coupler)
IP 30 250-
4000
(IEC 60318-5
Coupler)
250-
B71 Bone
4000
Conductor
(IEC 60318-6
Coupler)
2% THD at 1000 Hz max
output +9 dB (increasing at
lower frequency)
Level range:
dB HL
1. Ext. sign: CD input
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.
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
1000 clients / 50.000 sessions
Linear (dB)
(Hz) Ext sign Int.
1
Sign
2
+0/-2 +0/-2
+2/-2 +2/-1
+1/-0 +1/-0
+0/-2 +1/-0
+1/-1 +1/-1
+0/-2 +0/-2
+2/-3 +4/-1
+2/-3 +4/-1
+12/- +12/-
12 12
-10 to 50
Total Harmonic Distortion
80 dB SPL
100 dB SPL
FFequv (dB
Ext sign Int.
1
Sign
2
+0/-8 +0/-8
+2/-2 +2/-2
+1/-0 +1/-0
+0/- +0/-7
+2/-2 +2/-3
+1/-1 +1/-1
(Non
linear)
(Non linear)
(Non linear)
2. Int. sign: Wave
files
< 3%
< 10%
Page 46