Sennheiser’s RS 175-U wireless digital TV headphones offer an impressive range of features in a compact, ergonomic package - ideal for TV and HiFi usage. The bass boost and surround sound listening modes will allow users to experience home entertainment systems like never before – bass boost mode increases the audio bass response, while the two virtual surround modes offer a more spatial and livelier stereo sound.

• Closed, circumaural headphones with excellent digital wireless audio transmission
  
• Exceptional digital audio clarity and transmission range of up to 328 ft/100 m (line of sight)
  
• Enables switching between dynamic bass and virtual surround sound listening modes for situational sound customization
• Supports analog and digital audio inputs and allows toggling between the inputs
• Intelligently designed controls for maximum ease of use
• Ergonomic design for enhanced wearing comfort

Freedom of movement
The innovative digital wireless technology ensures that signal transmission remains clear and accurate as you move from room to room. You can expect an exceptional digital audio clarity and transmission range of up to 328ft/100m.

Intelligently designed controls
The user-friendly design makes it easy to set up and enjoy the RS 175. The main controls are located on the headphones, so nothing will distract you from an exciting audio experience, and the comfortable fit is ideal for extended periods of use.

What's in the box?
HDR 175 headphones, TR 175 transmitter, Optical cable, Audio cable. Power supply with 4 adapters (EU, UK, US & AU),  2 AAA NiMH rechargeable batteries & Quick guide.

Sennheiser product code: 508676 RS 175-U

                                     

Technical information

RS 175 headphone system
Carrier frequency: 2.40 to 2.48 GHz
Modulation: 8-FSK Digital
SNR analogue input: typ. 85 dBA at 1 Vrms; digital input: > 90 dBA
Transmission range: up to 100 m / 328 ft line of sight
Max. number of simultaneously connected headphones: 2

HDR 175 headphones
Transducer principle: circumaural, closed
Transducer system: dynamic, neodymium magnets
Frequency response: 17 Hz to 22 kHz
Max. SPL: 114 dB at 1 kHz, 3% THD
THD: < 0.5% at 1 kHz, 100 dB SPL
Operating time: up to 18 hours
Weight (incl. batteries): approx. 310 g

TR 175 transmitter
Connections: digital - optical (PCM or stereo - not dolby) & analogue: 3.5 mm stereo jack socket
Power consumption operation: typ. 4 W; Standby: ~0.3 W (without charging)

                             

Click here to view pdf quick guide
Click here to view pdf user guide

How best can I connect the transmitter to my audio device?
You can connect the transmitter to your audio device using either a digital (optical) or an analog connection. We recommend using the digital connection. The connections for audio devices are usually labeled "AUDIO OUT" or "DIGITAL OUT". The required audio cables are supplied with the RS 175.

Which digital input formats are supported by the digital optical audio input?
The wireless headphone system supports “PCM” or “stereo” audio signals. Surround sound formats are not supported. If an audio device/TV is connected to the digital optical input of the transmitter, set the audio format of the connected device to “PCM” or “stereo” by using the sound menu of the device.

Can I use several headphones/receivers with one RS175 transmitter?
You can use up to two HDR 165, HDR 175 or HDR 185 headphones with one transmitter. This allows, for example, if you have two systems you and your partner to listen at different volume levels. When simultaneously using different types of headphones (e.g. an HDR 165 and an HDR 175), bear in mind that they will differ in both sound characteristics and operation.                                      

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