Technical Specifications - ReSound RT977-DWC User Manual

Technical specifications

Mini BTE
Models: RT971-DWC, RT771-DWC, RT571-DWC, RT471-DWC
Reference test gain (60 dB SPL input)
Full-on gain (50 dB SPL input)
Maximum output (90 dB SPL input)
Total harmonic distortion
Telecoil sensitivity (1 mA/m input)
HFA - SPLIV @ 31.6 mA/m (ANSI)
Full-on telecoil sensitivity @ 1 mA/m
Equivalent input noise, w/o noise reduction
1/3 Octave Equivalent input noise, w/o noise reduction
Frequency range IEC 60118-0: 2015
Battery Lifetime (Battery type Rechargeable)
Data in accordance with ANSI S3.22-2014, IEC 60118-0:2015. Measured in a 2cc coupler.
70 Technical specifications
Thin
tube Closed
HFA 35 42
Max. 51 58
HFA 44 51
Max. 122 125
HFA 111 118
500 Hz 0.2 0.3
800 Hz 0.1 0.7
1600 Hz 0.4 0.4
0.1
3200 Hz 0.3
Max. 82 89
HFA 96 102
HFA 76 81
22 20
9 10
100- 100-
6980 6380
25 25
Maximum Output (OSPL 90)
140
130
dB
120
dB
110
100
dB SPL
90
80
Frequency (Hz)
Full-On and Reference Test Gain
%
70
60
Full-on gain
50dB SPL input
50
dB SPL
40
30
Reference test gain
60dB SPL input
dB SPL
20
10
Frequency (Hz)
Hz
Black curve: Thin tube
Grey curve: Closed
Hours