Personal Audio
- Headphones
- Headsets
- Headphones for TV
- Microphones
RS 170 - Sennheiser USA
Article No. 502874
Key Features
- That "wired" hi-fi sound without wires
- KLEER Digital wireless headphone system
- Selectable Bass Boost and Surround Sound
- Ability to broadcast to multiple headphones
Wireless Headphones, Stereo Surround Sound Headphones
$279.95
Related product
$279.95
General Description
Wireless headphones come in many shapes and sizes but few offer better home theater performance than the RS 170.
This wireless headphone system is made up of a pair of wireless headphones (HDR 170) and a multi-purpose transmitter (TX 170) which also functions as an 'easy-charge' cradle and docking station. The RS 170 also features a Dynamic Bass Boost and Surround Sound simulation mode for edge-of-your-seat excitement with your favorite music and movies!
The RS 170 utilizes KLEER's lossless digital wireless audio transmission (it sounds wired!), offering a range of up to 260 feet, audiophile-grade sound and reception to four optional pairs of Sennheiser KLEER headphones. Never fuss with tuning again thanks to automatic, interference-free pairing between the headphone and transmitter.
An exceptionally detailed, full-bodied sound reproduction is pumped into the listeners ears, filling the sealed, private earcups with liquid smooth audio. The headphones' leatherette earpads and headband cushions deliver outstanding comfort while their closed, around-the-ear design prevents sound leakage.
In a high-definition age, this one is a must-have.
What the experts are saying:
"The RS 170 wireless headphones allow me to move around the studio effortlessly while recording sound effects and have been great for the Actors on the TV series Bones on Fox. The sound quality is quite amazing considering how reasonably priced the RS 170 is." -Rob Nokes, CEO, Sounddogs.com & Supervising Sound Editor, "Bones"
Features
- KLEER lossless audio transmission for interference free reception
- Selectable Dynamic Bass Boost delivers deep, slamming bass response on demand
- Selectable Surround Sound simulation provides immersing depth for a state-of-the-art movie theater experience
- Multi-purpose transmitter - Also functions as 'easy-charge' cradle and docking station
- Multi-receiver mode- Up to 4 Sennheiser KLEER headphones listening to the same source
- Audiophile-level transducer systems with powerful neodymium magnets for clear and detailed audio reproduction
- Leatherette earpads and headband cushions for outstanding comfort
- No complex set-up required – Just plug into the analog audio outputs on your audio source!
- KLEER technology will not interfere with wireless networks or other 2.4 gHz devices
- Built-tough with a 2 YEAR warranty!
- *note* while the sound quaity of these headphones is fantastic for any type of music, they were not designed for use while recording/tracking and monitoring or musical instrument practice (performer wears the headphones while playing).
Delivery Includes
- HDR 170 headphone (receiver) with leatherette earpads (part # 534470)
- TR 170 (transmitter/charging station)
- Multi-country AC wall adapter (part # 534480)
- Detachable audio cable (part # 534486)
- 1/8 inch female to RCA male audio adapter (part # 514267)
- (2) AAA NiMH rechargeable batteries
- 1/8 inch female to 1/4 inch male audio adapter (part # 093778)
- Instruction manual
$279.95
Technical Data
| Wireless technology | Kleer |
| Carrier frequency | 2.4 - 2.8 GHz (auto selecting) |
| Modulation | MSK Digital |
| Range | Up to 260 feet (optimum: line of sight) |
| Operating time | Up to 24 hours per charge |
| Audio input | 1/8 inch (3.5 mm) stereo headphone plug (includes 1/4 inch and RCA adapters) |
| Transducer principle | Sealed (closed) |
| Cable length | Audio connect cable: 3.6 feet |
| Ear coupling | Around-the-ear |
| Sound pressure level (SPL) | 110 dB |
| Total harmonic distortion (THD) | <0.5% a 1 kHz |
| Signal-to-noise-ratio | 85 dBA (0,5 Vrms, 1 kHz) 85 dBA (0.5 Vrms, 1kHz) |
| Weight (transmitter) | approx. 7.6 oz (216 g) without batteries |
| Weight (headset) | approx. 7.6 oz (216 g) without batteries |
| Dimensions (transmitter) | 4.7 x 4.3 x 9 inches |
| Frequency response (headphones) | 18 Hz - 21,000 Hz |
| Impedance | 32 ohms |
| Charging time | Empty to full: approx. 16 hours |
| Battery | (2) AAA size NiMH rechargeable batteries |
| Operating time | approx. 24 hours |
| (*) | --------------- |
| UPC code | 615104170513 |
| EAN code | 4044155045437 |
| Dimensions (single) | 9.1 x 6.0 x 10.1 inches |
| Weight (single) | 3.0 pounds |
| Dimensions (master carton) | 19.5 x 18.7 x 11.0 |
| Weight (master carton) | 20.5 |
| Master carton quantity | 6 |
Glossary
| Audio input |
| Specifies the type of plug mounted for an audio input. |
| Cable length |
| The cable length is usually measured between the anti-kink sleeves of the cable (cable length without connectors). |
| Charging time |
| The time required to recharge a Sennheiser accupack. After recharging, automatic chargers will automatically switch to trickle charging. |
| Ear coupling |
| A distinction is made between headphones which are worn on the external ear (supra-aural) and those which surround the ear (circumaural). Open headphones have foam ear pads that rest on the ears or ring pads that surround the ears. Closed headphones, on the other hand, nearly always have circumaural ear pads. |
| Frequency response (headphones) |
| The frequency response of a pair of headphones is given within limits defined by the manufacturer. |
| Impedance |
| Impedance expresses the AC resistance of a microphone or a set of headphones. It is dependent on frequency and is given at 1 kHz as the so-called nominal impedance. Impedance is measured in ohms. In recent years, an industrial standard has developed, setting the impedance of headphones at 50 or 600 ohms. Sennheiser headphones are manufactured according to this standard, thus practically ruling out connection problems. With microphones, the input impedance of the following microphone amplifier should have at least three times the value of the nominal impedance, in order to prevent it from unnecessarily attenuating the microphone signal. |
| Modulation |
| The process in which one wave is varied by some parameter of another wave, for example, an RF carrier frequency that is modulated by an audio signal. Types of modulation include amplitude modulation, frequency modulation, pulse code modulation and pulse width modulation. |
| Operating time |
| States how long a unit can be continuously used with one set of batteries / rechargeable accupack. |
| Range |
| See RF wireless headphones, transmission loss. |
| Sound pressure level (SPL) |
| Due to the impractical numerical values, the sound pressure is usually given as the logarithmic value of the sound pressure level according to the equation: dB SPL = 20 x log (po / 0.00002 Pa). The abbreviation SPL (sound pressure level) is added in order to make a clear distinction from other uses of dB. The reference sound pressure, which is at the same time the threshold of hearing, is then 0 dB SPL. The threshold of pain is 140 dB SPL. A difference in the sound pressure level of 1 dB is just about perceptible, while a doubling of the sound pressure corresponds to 6 dB and a doubling of the volume corresponds to a rise of 10 dB. |
| Total harmonic distortion (THD) |
| Total harmonic distortion is a measure of non-linear harmonic distortion and is given in %. Non-linear harmonic distortions are signals which were not present in the original before the signal was converted by the headphones. These unwanted signals are caused by the diaphragm, whose movements do not precisely move in time with the electric signals that cause it to move. Unfortunately, this is a feature of all electroacoustic transducers. Although it cannot be completely eliminated, suitable steps can be taken to minimise it. However, the user is not interested in why this distortion takes place but in how great the level of distortion must be for it to become perceptible. According to the findings of several research projects, a total harmonic distortion of 1% in the frequency range of 100 to 2000 Hz is imperceptible. Below 100 Hz, the perceptibility threshold lies at 10%. |
| Transducer principle |
| Two transducer principles have become established for the conversion of electric energy into mechanical energy: electrodynamic and electrostatic transducers, whereby the latter is only to be found in audiophile systems, due to their relatively high manufacturing costs. Electrodynamic transducers basically consist of a ring-shaped permanent magnet and an oscillation coil, which is fixed to the receiver diaphragm. When an audio-frequency alternating current is passed through the oscillation coil, it is caused to vibrate in accordance with the audio-frequency alternating current, thus causing the diaphragm to vibrate in the same way. |
