Personal Audio
Set 830-S - Sennheiser USA
Article No. 502003
Key Features
- Directly connects to hearing aids
- Outstanding, customized stereo sound
- Wireless transmission of up to 40 feet within a room
Headphones for TV - Hearing Aids - Stereo
$269.95
Related product
$269.95
General Description
The Set 830 S is an infra-red stereo TV assistive listening system which is perfect for wearers of hearing aids. Directly connectable to a TV, hi-fi system or radio, the cordless Set 830 S guarantees outstanding sound quality, which, for example, thanks to treble emphasis, can be customised to the listener’s hearing.
Sound can be transmitted from the receiver to the hearing aid by means of wireless induction using the induction loop included in the scope of delivery. Alternatively, induction couplers and headphones can be plugged into the lightweight receiver.
$269.95
Technical Data
| Modulation | FM, stereo |
| Carrier frequency | 2.3/2.8 MHz |
| Range | up to 12 m |
| Frequency response | 50 - 16,000 Hz |
| Total harmonic distortion (THD) | <1% (1kHz) |
| Sound pressure level (SPL) | 125 dB (1kHz) |
| Signal-to-noise-ratio | typ. 75 dB(A) |
| Operating time (receiver) | up to 12 hrs |
| Charging time | approx. 3 hrs |
| Weight (receiver) | approx 1.8 oz (50 g) (incl. accu) |
| Weight (transmitter) | approx 9.2 oz (260 g) |
| Dimensions (receiver) | 2.8 x 2.4 x 1 in (70 x 60 x 26 mm) |
| Dimensions (transmitter) | 4.4 x 5.7 x 2.3 in (112 x 146 x 58 mm) |
| Audio-XLR connector | 3.5 mm, stereo jack plug |
| Microphone connector | 3.5 mm, same plug as Audio-XLR connector |
$269.95
Recommended Accessories
| Part/Accessory | Article No. |
| BA 300 | 500898 |
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Lithium polymer rechargeable battery for Set 900, RI 900, Set 830-TV, RI 830, Set 830 S, RI 830 S, IS 410, RI 410, RS 4200, RR 4200 |
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| EZT 3011 | 502566 |
|
Induction neck loop for use with the RR 840 S and RI 830 S receivers. It transmits the audio signal from the receiver to hearing aids with induction coils. |
|
| RI 830 | 502020 |
|
Stethophone receiver for use with Set830, with BA300 |
|
| RI 830-S | 502021 |
|
Bodypack infrared receiver for two channel/stereo (2.3/2.8 MHz) systems. Includes BA 300 rechargeable battery. Requires headphone or induction neckloop (order separately). |
|
Glossary
| Audio-XLR connector |
| The most common connector for connecting microphones to amplifiers or mixing consoles or for linking audio units in the studio (usually 3-pin XLR connectors). XLR-3 connectors are also used for digital audio signals (AES/EBU). In addition to audio applications, multi-pin XLR connectors are used for supplying power to e.g. ENG cameras. |
| Charging time |
| The time required to recharge a Sennheiser accupack. After recharging, automatic chargers will automatically switch to trickle charging. |
| Frequency response |
| The frequency response of a microphone is given within the limits defined by the manufacturer. In studio condenser microphones it is generally within the range of between 20 Hz and 20 kHz. |
| Microphone connector |
| Standardised socket for connecting a microphone (such as the microphone socket on an RF wireless transmitter) or connector of a cabled microphone (such as the XLR connector on most of Sennheiser’s cabled dynamic microphones). |
| 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 (receiver) |
| Indicates the receiver’s operating time with a new, fully charged battery or 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%. |
