Key Features
- Balanced sound
- Very lightweight
- Excellent speech intelligibility
- Infra-red stereo TV listening system
wireless infrared stereo TV listening sound system
MSRP:$199.95
wireless infrared stereo TV listening sound system
MSRP:$199.95
General Description
The IS 410 is an ultra-lightweight infrared stereo stethoset TV listening system that enables the user to individually adapt the volume of TV sets, radios and hi-fi systems to his or her hearing ability. The transmitter connects easily to this equipment and transmits crystal-clear audio within a room. Operation of the stethoset headphone system is easy and intuitive. Balance and volume are set directly on the stethoset headphones. The transmitter features a compression button that further enhances speech intelligibility. Automatic on/off.
Features
- Ideal for TV sound transmission
- Cordless infra-red system with excellent sound quality
- Transmits sound within a room, at a distance of up to 12 meters
- Balance control on the headphones for separately setting the volume level for the left and right ear
- Compression function ensures superior speech intelligibility and very good reproduction of music
- Superior transmission reliability due to 2.3/2.8 MHz carrier frequencies
- Lithium-Ion rechargeable battery pack ("accupack") for more than 16 hrs. of audio enjoyment
- Transmitter recharges the headphones plus an additional accupack
- Headphones automatically switch on and off when they are put on/removed
- Includes short instructions for quick set-up
- Very lightweight stethoset headphones, extremely comfortable to wear even for extended listening
- Ideal for wearers of glasses
Delivery Includes
- 1 RI 410 stethoset headphones
- 1 TI 410 transmitter
- 1 BA 300 Li-Ion accupack
- 2 pairs of replacement ear cushions
- 1 mains power supply
- 1 TV RCA adapter
- 1 connection cable with two 3.5 mm stereo jack plugs and one adapter to ¼“ (6.3 mm) jack socket
wireless infrared stereo TV listening sound system
MSRP:$199.95
Technical Data
| XLR connector |
3.5 mm, stereo jack plug |
| Carrier frequency |
2.3/2.8 MHz |
| Charging time |
Approx. 3 hrs |
| Dimensions (receiver) |
7.9 x 5.3 x .79 in. (200 x 135 x 20 mm) |
| Dimensions (Transmitter) |
4.5 x 5.7 x 1.6 in. (115 x 145 x 40 mm) |
| Frequency response |
50 - 16,000 Hz |
| Max. sound pressure level (active) |
125 dB (1 kHz) |
| Connector (microphones) |
3.5 mm, same plug as Audio-XLR connector |
| Modulation |
FM, stereo |
| Operating time (receiver) |
Up to 16 hrs |
| Range |
Up to 39.4 ft. (12 m) |
| Total harmonic distortion (THD) |
< 1 % (1 kHz) |
| Weight (receiver) |
Approx. 1.8 oz. (50 g) (incl. Accu) |
| Weight (transmitter) |
Approx. 4.9 ft. (140 g) |
wireless infrared stereo TV listening sound system
MSRP:$199.95
Recommended Accessories
| Part/Accessory |
Article No. |
| BA 300 |
500898 |
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
|
| MKE 800 TV-N |
500974 |
Used in conjunction with the TI 900, TI 50, TI 410 and TR 4200 transmitters, the microphone picks up the sound from a TV set. Equipped with 3.5 mm/4-pole jack plug. The microphone is attached to the TV loudspeaker using self-adhesive Velco tape.
|
| MKE 800-TV |
004995 |
TV condenser microphone (for SET 810 / 820)
|
| RI 410 |
500684 |
Stethophone receiver for use with IS410, with BA300
|
| Universal adapter |
077046 |
Universal Gold-plated 1/4" Adapter
|
wireless infrared stereo TV listening sound system
MSRP:$199.95
Variants
wireless infrared stereo TV listening sound system
MSRP:$199.95
wireless infrared stereo TV listening sound system
MSRP:$199.95
Glossary
| 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. |
| Max. sound pressure level (active) |
| The maximum sound pressure a unit can reproduce before a given THD is reached. |
| 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. |
| 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%. |
| XLR connector |
| Most common form of connector in audio studio technology. |
