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Cardeas Plath klein 1

Dear AP team,

Having owned pair no. 11 of the Cardeas 30 Limited Jubilee Edition for a little more than a year now, I am writing to express my gratitude to your company and specifically your design team around Manfred Diestertich. The Cardeas 30 LJE speakers have elevated my music listening enjoyment immensely. With their intelligent and sophisticated technology, using suspended drivers and a number of very innovative and effective vibration control techniques, they are able to convey a musical experience which is utterly close to a live performance. In that regard, very important and impressive is the quality of deep bass, reproduced by two large push-push woofers built in the sides of the relatively compact cabinets.

The Cardeas is certainly one of the most transparent and natural sounding speakers, creating this elusive "it sounds just right" feeling. Even compared to other Audio Physic speakers it appears that the Cardeas is the ultimate expression of your company motto "no loss of fine detail". It reproduces an incredible amount of three-dimensionality, ambience and air I never knew existed on my recordings, not to mention a wealth of acoustic details previously unheard. Even more stunning is how all of this information is delivered by the six drivers coherently as an organic whole within a truly believable soundstage, resulting in an incredibly convincing musical performance in my home. The tonality and timbre of voices and instruments are rendered so true to the original, that the listening experience becomes uncannily realistic and natural sounding, both in complex orchestral and choral music as well as in intimate solo performances.

The Cardeas 30 LJE speakers are a true revelation to me. I cannot recommend them highly enough. Thank you sincerely for having created such a wonderful product.

Holger Plath

Atlanta, GA

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AP Brilon

Dear Audio Physic Team,

since a few weeks I am the proud owner of the Classic Line 15 JBL from Auditorium Münster. Thanks to the anniversary Day Event and the great support of Mr. Lill, I was able to test the speakers extensively in the shop and at home. That was important for me, because my premises do not offer optimal conditions.

They are operated by an AVM Inspiron C8. The power supply is via Transparent Audio High Performance Power. The Audio Physic Classic are powered by the new inakustik reference LS-804 Air Speaker cables.

The natural sound and the unadulterated reproduction of the music fascinate me again and again. Especially voices and acoustic musical instruments are reproduced in a wonderfully colourless and unexciting way. The matching speaker feet VCF II Magnetic Plus are already ordered :-).

Thanks to the uncritical placement possibility, the integration into the home is made easier. Despite the pitch of the roof and the proximity to the wall, the speakers play freely and airily. Many thanks to Mr. Dirk Rühl for the great finishing and sound experience of the 116 B loudspeaker pair. "No loss of fine detail". Well done !

Again many thanks in advance and many greetings to the team,

Your Michael Kater


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form the German Trade Magazine VOLUME - Technic Music Emotion




The smaller the company, the more fascinating the products: In the middle of Germany, a manufacturer creates loudspeakers that, strictly speaking, are not allowed to sound. And this is precisely why music lovers all over the world are enthralled.




The brains behind Audio Physic: Chief designer Manfred Diestertich  is tirelessly looking for new material combinations, Managing Director Wolfgang Lücke in the picture on the right with ceramic foam, which Audio Physic successfully applies inside the enclosures


One may ask Manfred Diestertich many questions – but not the one about how his speakers sound. For more than 20 years now, Diestertich has been responsible for the product portfolio of Audio Physic, a speaker manufacturer located in the town of Brilon in Germany’s Sauerland region. The brand enjoys cult status far beyond the German-speaking countries. Diestertich himself has an excellent reputation as chief designer, regardless of whether he is visiting dealers in Norway or a trade fair in distant China. Audio Physic employs just a dozen people at the company's headquarters – including temporary staff – and is therefore the best proof of the often underestimated fact that the size of a company does not necessarily allow conclusions to be drawn about its importance. Brilon with its 30,000 inhabitants, located right in the middle of Germany and quite far away from the nearest motorway junction, promises pure enjoyment of nature, but also impresses with full employment. With its midmarket specialists, the region is economically well positioned, thus offering Audio Physic an enormous benefit. So, let’s switch back to the original question, why loudspeakers from Audio Physic don’t sound. Or better: Why they shouldn't sound! Or, to wrap it in more descriptive words: Why you shouldn't hear the actual loudspeaker. This may sound quite absurd to the inexperienced music listener, but it sums up the brand's sound philosophy quite precisely: it's the music that plays – and not the loudspeaker. From the very beginning, almost 35 years ago, the loudspeaker creators from the Sauerland have prompted their listeners to take their seat relatively close to the speakers, which then were quite heavily angled inwards. This kind of positioning in a triangle that no longer was isosceles, which, at least for that time, was somewhat revolutionary, was intended to have the sound sources themselves no longer being perceived acoustically. Instead, the listener found himself in a three-dimensional sound space. And, the point of the story was that the designers managed to actually keep their promise. Even though, however, the loudspeaker wasn’t probably reinvented in the Sauerland, but listening to music has been given a major boost here. Sitting relatively close, listening in a different way, that's what makes the brand so charming and explains their loyal following among audiophiles around the globe.

Manfred Diestertich is not a storyteller, and a material fetishist either. In an objective and rational manner he explains why it is most important to him to combine materials in such a way that no vibrations or resonances arise. His goal is to rule out negative sonic effects: "The aim is not only the inaudible, but also the absolutely impermeable cabinet. The ideal enclosure is one through which absolutely no sound can penetrate. Imagine a double-glazed window in which the insulating cavity acts as a sound barrier. Diestertich has transferred this type of sandwich construction to the loudspeaker cabinet – a permanently elastic acrylic adhesive tape is applied to the MDF cabinet, onto which a glass pane is pressed. The sandwich composite of wood and glass makes the cabinet absolutely resonance-free. "Actually, it amazes me,“ so the material wizard Diestertich admits, „that nobody has drawn up this idea yet.“ "We are still the only ones, which manufacture loudspeaker enclosures using this material mix from wood and glass,“ underlines also Wolfgang Lücke, joint owner and managing director of the innovative speaker specialists. Lücke himself comes from the musical instrument sector, he used to manage the Musikmesse Frankfurt for many years, the largest of its kind in the world, and has also attended in that capacity countless live concerts. He has always been an avowed hi-fi enthusiast, and now in his function at Audio Physic he has dedicated himself to the task of "transporting the musical experience into the home with all its senses", logically backed by Audio Physic's slogan: "Real loudspeakers for real music lovers". The yardstick for the quality of music reproduction must always be the live experience. Manfred Diestertich formulates the claim even more provocatively: "Our focus is on the music, the loudspeakers are always just a means to an end." As a result, they both describe what Audio Physic loudspeakers have been enabled to do right from the very beginning. And that has become the DNA of the brand from the German Hochsauerland region, if we would like to strain that commonly applied marketing term: It’s about the almost holographic entitlement of immersing into the music. "It’s the spatial imaging that makes me instantly recognize our loudspeakers," Manfred Diestertich explains, thus emphasizing another characteristic: "Our loudspeakers are completely uncritical to their positioning. Whether close to the wall or further away – the sound always fills the whole room." Last, but not least, the designer attaches great importance to the fact that his loudspeakers neither do lay down excessive demands on the positioning in the room, nor do they on the power rating of the amplifier: "We don’t give any recommendations for amplifiers, our loudspeakers play with almost everything that gets in their way. Audio Physic, of course, can't defy the laws of physics either: the bigger the room, the bigger and more expensive the loudspeakers should be, so the men from the Sauerland recommend.

By the way, a further special feature of the loudspeaker cabinets from the Sauerland region is the deliberate use of ceramic foam, a filter material chemically produced from fired sand and developed in Germany for iron casting, looking like a solidified sponge and working real wonders inside the cabinet in terms of acoustic damping. The drivers are sourced from the Far East specialist Wavecor, where they are manufactured by Danish developers according to Audio Physic’s special requirements. This also ensures the exclusivity of the drivers, which you won't find in any other loudspeaker. While Wolfgang Lücke commutes to his family in Frankfurt at the weekend and uses his spare time during the week mainly to explore the hilly Sauerland by mountain bike, not only the employees, but also a major part of the suppliers come from the nearer surroundings. These are grown, usually friendly relationships. The wooden sandwich cabinets, for example, are manufactured in the Josefsheim Bigge, a facility with a workshop that also employs people with disabilities. This is another reason why Audio Physic, despite its international fan base, remains deeply rooted in its home country. And Lücke states: "Transplanting wouldn’t only be a loss of culture, but also a loss of competence – after all, there is no such thing as the profession of loudspeaker builder". By the way, the constructive knowledge and the material expertise not only benefit the acoustics, but also the visual design: With materials such as the aforementioned ceramic foam inside, Audio Physic can keep the appearance of the loudspeakers relatively slender, so that they avoid themselves to take centre stage in the living room in a too opulent way. But the sandwich structure of the cabinets in conjunction with their glass panelling can also play out another decisive advantage here, as it allows deep glossy surfaces in all RAL colour grades. The loudspeaker thus becomes a full-fledged piece of furniture and a true eye-catcher, and a sound furniture, which is manufactured exclusively in Germany by hand with a clear mission: To awake feelings and generate emotions.


"No loss of fine detail" is Audio Physic's creed for the reproduction of music – pursuant to this every detail is carefully developed, selected and then assembled by hand in Brilon