Press release
20.10.2004 - Wedemark
Mikroport 2015 System: Better hearing with professional audio technology
At the end of October audio specialist Sennheiser will launch a brand-new personal FM system for the hearing impaired. The new Mikroport 2015 System is based on the same technology used by stage and sound professionals. The advantages: sound transmission in the particularly interference-free UHF range, professional audio quality and unprecedented flexibility in the choice of channels.
The Mikroport 2015 personal FM system provides anyone who has a serious hearing impairment - especially children and adolescents - with a direct link to a contact person such as a parent or teacher, thus allowing them to clearly understand what is being said. The system is fully compatible with all standard hearing aids and cochlear implants. Wearers of hearing aids simply connect a small, sturdy receiver to their hearing aid via a cable or an induction loop. The contact person talks into the microphone of an equally compact transmitter that transmits the sound by radio waves almost directly into the hearing aid.
The system's special automatic priority circuit then takes over: as soon as it receives an audio signal from the transmitter, the automatic filter system lowers the sensitivity of the hearing aid microphones. As a result, the ambient sound is attenuated, making it easier for the contact person to be heard. This is an extremely valuable benefit especially when children are learning to speak. When an audio signal is no longer being received, the hearing aid microphones are turned up again and ambient sounds can once again be heard in their original volume.
A special asset for schools: due to the system's intelligent frequency management, many Mikroport systems can be used simultaneously. Up to 20 channels (from up to 160 freely selectable channels) per frequency version can be used at any one time without any interference and in optimum audio quality (80 ?16,000 Hz). An LED on the transmitter shows the teacher whether his or her voice is received by the child.
Both the transmitter and the receiver use standard batteries or special accupacks that can be fully recharged within about 2.5 hours. The system comes with a clip-on mic, but other types of microphone such as plug-on microphones or headmics can also be used. Two different menus ensure simple and comfortable operation for the user while providing the hearing aid supplier with every possibility for professional adjustment (channels, squelch, automatic priority circuit, etc.). The Mikroport 2015 personal system is fully compatible with the EMP 2015 Soundfield System for improving speech audibility in the classroom.
Delivery includes:
 | SK 2015 transmitter with clip-on microphone, |
| EK 2015 receiver, two BA 2015 rechargeable accupacks, |
| L 2015 charger, |
| two belt pouches with neck strap, |
| a system bag and smaller transport bag for the receiver and transmitter |
Technical Data
Mikroport System 2015
| Modulation: FM mono |
| Frequency ranges: 518-554 MHz, 626-662 MHz, 740-776 MHz, 786-822 MHz, 830-866 MHz |
| Selectable frequencies: up to 160 pre-set channels per frequency range |
| Noise reduction system: Sennheiser HDX |
| Audio frequency response: 80 - 16,000 Hz |
| Signal-to-noise ratio (1 mV, peak deviation): 96 dB(A) |
| THD (nominal deviation, 1 kHz): typ. 0.3 % |
| Power supply: 1 BA 2015 accupack, 2.4 V or 2 AA size batteries, 1.5 V Operating time with BA 2015 or standard batteries >12 hrs |
| Charging time: <2.5 hrs |
| Weight of transmitter/receiver (with BA 2015): approx. 175 g each |
EK 2015 Receiver
| Intermodulation attenuation: typ. 75 dB |
| Headphone output: 3.5 mm jack socket: 2 x 20 mW/32 Ω |
| Hearing aid output: 2.5 mm jack socket: 3 mV/2 k Ω |
SK 2015 Transmitter
| RF output power at 50 Ω typ. 10 mW |
As one of the world's leading manufacturers of microphones, headphones and wireless transmission systems, the Sennheiser Group with its headquarters in Wedemark near Hanover, Germany, had total sales of over €237 million in 2003. The export share is about 80%. Sennheiser has a total workforce of approx. 1,600 employees, of whom 60% are employed in Germany. Sennheiser is active worldwide and, in addition to other partnerships, has its own sales subsidiaries in France, the UK, Belgium, the Netherlands, China, Singapore, Canada, Mexico and the USA.
For further information about Sennheiser please visit us on the Internet at www.sennheiser.com or contact:
Sennheiser electronic GmbH & Co. KG
Pressereferat - Edelgard Marquardt
Am Labor 1 - 30900 Wedemark
Fon: +49 (5130) 600-329
Fax: +49 (5130) 600-295
e-Mail: marquare@sennheiser.com
fischerAppelt Kommunikation
Clemens Thoma
Waterloohain 5 - 22769 Hamburg
Fon: +49 (40) 899 699-961
Fax: +49 (40) 899 699-910
e-Mail: ct@fischerappelt.de
