118
119
APP
Troubleshooting
Problem
Solution
The sound is louder in one ear than
in the other.
•
Adjust the Balance
in the Settings Menu.
The sound volume is low even
though the volume is set to max.
•
Adjust the Basic Attenuation
in the Settings Menu.
The sound is only in Mono even
though it is connected via a stereo
cable to a sound source which
provides stereo sound.
•
Change to Stereo in the
Settings Menu.
The bass reproduction is weak.
•
Switch off Bass Reduction
in the Settings Menu.
The Tone Control cannot be adjusted.
•
Use the Settings Menu
to activate the Tone Control
buttons or to adjust the sound.
It is not possible to select T position.
•
Use the Settings Menu to
activate the T position.
The unit is acting strangely.
•
Reset the unit to the factory
settings in the Settings Menu.
Humming occurs when connecting
the stereo cable while charging.
•
Only use the supplied charger.
Interference is heard when used in
some environments
•
Move the product away from
the suspected source of radio
frequency energy, for example
a transmitter.
Technical information
Power supply
Battery power:
Built-in rechargeable lithium-ion battery 3.7 V,
860 mAh
CAUTION
Danger of explosion if battery is incorrectly replaced.
Replace only with the same or equivalent type.
Charging device:
5V 1A DC adapter
Operating time:
BE9124 Earphones – up to 30 hours
BE9159 Neck Loop – up to 10 hours
Charging time:
~ 4 hours
Input signals
Microphone:
Built-in omnidirectional and directional
Line input:
2.5 mm stereo jack, Max input: 0 dBV. Automatic
selection between line input and external microp-
hone.
Telecoil:
Built-in telecoil angled at 45°
Output signals
Headphone socket:
3.5 mm stereo jack plug
Output power headphone
socket:
100 mW at 16 Ω load
Distortion:
BE9122 Headphones
BE9124 In-ear phones
0.6% THD
0.08% THD
Dynamic range:
90 dB SNR (electrical)
Frequency range:
40-10,000 Hz (electrical)
Max. output level,
saturation:
BE9122 Headphones
BE9124 In-ear phones
124.3 dB SPL (@ 2.5 kHz)
132.0 dB SPL (@ 5 kHz)