Sennheiser HDR 175 manual

Sennheiser HDR 175
7.2 · 5
PDF manual
 · 37 pages
manualSennheiser HDR 175
28 | RS 175


Sound problems

Problem Possible cause Possible solutions Page
No sound
Headphones are switched off. Switch the headphones on. 21
No power connection.
Check the connection of the power supply
Headphones are muted. Deactivate the muting function. 22
Audio plug is not properly connected. Check the audio plug connection. 13
Audio source is switched off. Switch the audio source on.
Volume of the analog audio source is
either set to the minimum or is on mute.
Increase the volume on the audio source
to at least a medium level/Deactivate the
muting function from the audio source.
Audio cable is defective. Replace the audio cable.
Headphones are not correctly paired
with the transmitter (e.g. additional
Pair the headphones with the transmitter
Wrong audio input is selected. Select the other audio input. 22
Digital audio connection uses
incompatible data transmission settings.
Set the digital audio output of your
device/audio source to “PCM”, with a
sampling rate of max. 96 kHz (see the
instruction manual of your audio source).
Headphones are out of the transmitter’s
Reduce the distance between headphones
and transmitter.
Signal is shielded.
Remove obstacles between the
transmitter and headphones.
There are interfering devices (e.g. WLAN
routers, Bluetooth devices or microwaves)
in the vicinity.
Change the position of the transmitter or
of the headphones.
Ensure that the transmitter is separated
from other wireless devices by at least
50 cm/20”.
Sound is too
Headphone volume is adjusted too low. Increase the volume on the headphones. 22
Volume of the analog audio source is
adjusted too low.
Increase the volume on the analog audio
source to at least a medium level.
Hear echoes
and TV tone
when using
Some TVs can adjust a delay or latency
of the audio signal for the digital audio
Check the audio output settings of your
TV and set the latency to “0”.
Sound only on
one ear
Audio cable is not properly connected. Check the plug connection. 13
Audio cable is defective. Replace the audio cable.
Sound is
Signal of the audio source is distorted. Reduce the volume of the audio source.
Headphone volume is adjusted too high. Reduce the volume on the headphones. 22
Volume of the analog audio source is
adjusted too high.
Decrease the volume of the analog audio
source at least to a medium volume level.

View the manual for the Sennheiser HDR 175 here, for free. This manual comes under the category Headphones and has been rated by 5 people with an average of a 7.2. This manual is available in the following languages: English. Do you have a question about the Sennheiser HDR 175 or do you need help? Ask your question here

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Sam Zuccarello • 26-6-20211 comment

my base unit flashes a red light all the time when charging. i have the HDR 175

Jim • 18-7-2022

I put in new rechargable batteries. The base unit was initially red, and after a while went to flashing red. Now, the headset won't turn on.

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Birgit Menn • 15-10-20221 comment

My Charger Station is Blinking green and there is no Sound on the headphones, Even through they are fully Charged

mike • 23-10-2022

my charger station is blinking green an there is no sound on the on headphones. headphones are fully charge. what is wrong

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matt • 20-1-2023No comments

how do you charge it or do you need batteries

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Coral Davis • 13-1-2023No comments

HDR 175 Headphones work fine with Smart TV on main channels (7, 9, & 10 etc) but do not work on 7 Mate and other like channels or Netflix. Can anyone help with this problem please

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Gord Monette • 21-11-2022No comments

the led light that charges the batteries remains red all the time. is this normal.

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Sam • 1-11-2022No comments

Hi I’m trying to connect my hdr 175 headphone to a new tv and the tv does not seem to be recognizing it. Is there anything I need to do other than plug in the optical cable?

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Charles Laquidara • 17-10-2022No comments

I just changed the batteries. My HDR175 headphones cut out every few seconds. I disconnected the system for 30 minutes. But cannot stop the cut outs. Any ideas?

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Chuck Campbell • 11-10-2022No comments

My base is a Model TR 175 Headphones marked as HDR 175

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Jim • 18-7-2022No comments

Reading from the manual, it seems that I have a charging fault. Does that mean that my base unit is dead, and must be replaced?

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David Plant • 25-5-2022No comments

My Rs 175 is still blinking red after 16 hours of charging? Unit is brand new haven't used yet.

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Number of questions: 17

HDR 175 | 505582
4044155078954, 0793518970971, 0615104229563
User manual (PDF)
Headphone sensitivity114 dB
Total Harmonic Distortion (THD)0.5 %
Acoustic systemClosed
Headphone frequency17 - 22000 Hz
Ear couplingSupraaural
Continuous audio playback time18 h
Battery technologyNickel-Metal Hydride (NiMH)
Battery typeAAA
Number of batteries supported2
Rechargeable battery
Ports & interfaces
Frequency band2.4 GHz
Wireless range100 m
Connectivity technologyWireless
Other features
Weight & dimensions
Weight310 g
Product colourBlack
Wearing styleHead-band
Product typeHeadphones
Recommended usageMusic
Microphone typeNot available
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