19 Technical specifications
130
MADSEN Zodiac
Lowpass noise
Contralateral TDH-39 headphone
Band limit:
1600 Hz (nominal -3 dB point)
Slope:
The slope is between -12 and -18 dB/octave above 1600 Hz, with an additional
±6 dB tolerance. Above 8500 Hz, the spectrum level remains below -34 dB re.
1600 Hz level.
Level:
Noise level is indicated in dB HL. Tolerance ±5 dB.
Contralateral insert earphone and ipsilateral probe
Bandwidth:
1600 Hz (nominal -3 dB point)
Slope:
The slope is between -12 and -18 dB/octave above 1600 Hz, with an additional
±6 dB tolerance. Above 8500 Hz, the spectrum level remains below -34 dB re.
1600 Hz level.
Level:
Noise level is indicated in dB HL. Tolerance ±5 dB.
Highpass noise
Contralateral TDH-39 headphone
Band limit:
1600 Hz (nominal -3 dB point)
Slope:
The slope is b12 and +18 dB/octave below 1600 Hz, with an
additional ±6 dB tolerance.
Level:
Overall noise level is indicated in dB HL. Tolerance ±5 dB.
Contralateral insert earphone and ipsilateral probe
Bandwidth:
1600 Hz (nominal -3 dB point)
Slope:
The slope is b12 and +18 dB/octave above 1600 Hz, with an
additional ±6 dB tolerance.
Level:
Noise level is indicated in dB HL. Tolerance ±5 dB.
ANSI & IEC reflex stimulus RETSPL values
Frequencies Ipsilateral probe
Insert
Insert
Supra-aural
Supra-aural
(Hz)
HA-1
[2]
phone
phone
phone
phone
HA-1
[2]
HA-2
[2]
IEC 60318-
IEC 60318-1
3/NBS 9A
[1]
[1]
500
6.0
6.0
5.5
11.5
13.5
1000
0.0
0.0
0.0
7.0
7.5
2000
2.5
2.5
3.0
9.0
9.0
4000
0.0
0.0
5.5
9.5
12.0
