About DEGO
DEGO was founded in 1995, It is the private brand of Eman & Partners.
Ehmann & Partner GmbH, which produces the DEGO Car Audio products is one of the most important loudspeaker manufacturers in Germany and Europe. With more than thirty years of design and manufacturing. Ehmann & Partner provides custom loudspeakers, Car Audio component sets for several OEM brands and microphones for hand free calling in cars to some of the major German car makers. The DEGO products are exported to all major Car Audio markets in the world.
Ehmann & Partner products are designed to surpass your expectations in quality and performance.
Technology And Acoustic Design
Reference Midwoofer
The automobile is one of the most common listening room to enjoy music. Therefore it was our goal to design and manufacture the world’s finest automotive loudspeaker system which provide the precision reproduction of pure music without limits. With natural sound, accurate imaging, truthful dynamics and enjoyable performance.
The DEGO Series represent the latest application of new technologies and German engineering refinements. Its design, engineering and sonic attributes bring mobile audio performance to new standards – our Definition of Sound.
New Aluminium Cone Technology
Current aluminium cone speakers are simply conventional designs with an aluminium cone replacing their paper, polypropylene or other material counterparts. The power capacity of these conventional aluminium cones is limited because of break up problems between the edge of the aluminium cone and the rubber surround. Furthermore there are unwanted resonances on the cone material which cause extremely high distortions shown in some peaks in the upper frequency range. The resulting sound is crisp and metallic.
Our DEGO engineers have solved these problems by developing a totally new aluminium cone:
We use an ultra-light, rigid and stiff aluminium membrane specially prepared in an anodizing process, which allows a dramatic increase in sound velocity, or what we call “sonic speed”. That means impulses from the voice coil spread radial to the edge of the aluminium cone for times faster than on other cone materials.
We have optimized the shape of the rubber surrounding. A special adhesive connection the metal cone and the rubber surround guarantee extremely high power handling.
We have computer designed the shape of the aluminium cone using some exactly optimized R.A.C.E. (Resonance Attenuation Cone Embossment) to avoid breaking up resonances at the high frequencies. Therefore the sound is distortion and coloration-free across the entire audio spectrum. The music reproduction is clearly more dynamic, precise and detailed but without any sharpness and metal sound coloration.
Reference Tweeter
The specially coated 1” (25 mm) silk tweeter is driven by a drilled neodymium magnet system. The holes in the pole plate and the additional air volume reduce the resonance frequency to 710 Hz. The solid steel housing together with the additional air volume guarantee a much better heat conduction than conventional plastic housings.
The low resonance frequency allows us to use the tweeter in lower frequencies. Together with the additional air volume it is not necessary to use any cooling and damping ferro fluid liquid in the air gap of the voice coil. The result is a much richer and more detailed sound performance.
OLeft above:
Conventional neodymium tweeter with ferro fluid cooling. The blue color marked parts show the air volume for moving parts (voice coil and dome). Resonance frequency for this tweeter technology is around 1.6 kHz.
Right above:
Newly developed neodymium tweeter with additional volume. The red color marked parts show the much bigger air volume for the moving elements. Resonance frequency for this tweeter is around 710 Hz.
Frequency response:
conventional tweeter (blue curve); newly developed tweeter (red curve).
Reference Crossover
This high-end crossover uses a computer optimized topology, superior high-end components with a minimal influence on sound quality, sound level adaption, crossoverpoint adaption and other sophisticated features.
With this multifunctional crossover it is easy to install the loudspeaker set for an optimal and perfectly tuned sound system in any car. The result is a clear audiophile performance with a dramatically improved, more three-dimensional sound stage and an absolutely natural music reproduction.
Reference Crossover for the Reference Master Line and for the upgrade options of the Reference Tweeter
Workshop Equipment
Quality Made In Germany
At Ehmann & Partner we challenge our engineers to design the utmost quality for our loudspeakers. To achieve this goal two factors are essential: extensive technical experience and constantly optimized production processes.
Consequently, both mechanical handcraft and precise automation are applied in our assembly lines to constantly ensure high sound quality of each individual loudspeaker.
Furthermore the company is certified to ISO/TS 16949:2002 quality standards for manufacturing facilities.
People are able to locate a sound source spatially be sensing the delay and level differences of the acoustic signal at either ear.
We stimulate this process with our acoustic measurement system which allows us to accurately record and store acoustic signals. It enables our engineers to optimize the loudspeakers’ sound reproduction in vehicles.
Customers
AIV GmbH & Co. KG
Alpine
Audi AG
Audio Design GmbH
Audio Mobil Elektronik GmbH
Audio System Germany
Audiotec GmbH
Date Modul AG
Daimler AG
DD - Digital Design
Gladen Audio GmbH
Ground Zero GmbH
Jehnert Sound Design GmbH
Lamborghini
Loewe Technologies GmbH
NAIM Audio
Revox GmbH
RPM Audio
S1NN GmbH & Co. KG
Sonus faber s.p.a.
Sonus GmbH
TTS High Speed Com GmbH
Visaton GmbH & Co. KG
Volkswagen AG
Volvo Car Corporation
wwwat - world-wide-audio technology
ZhongJia Automotive Manufacturing Co. Ltd.