At EBTB, we believe sound is not just heard—it’s felt. Every curve, every material, every circuit is shaped by acoustic purpose. Our loudspeakers are born from a relentless pursuit of sonic truth, where design is never decoration—it’s performance embodied.
We fuse minimalist aesthetics with uncompromising engineering. From crossover topology to cabinet geometry, every decision serves the music. No gimmicks. No excess. Just pure, intentional design that disappears into the listening experience.
Technology is our tool. Emotion is our goal.
Our basic philosophy is: FORM FOLLOWS FUNCTION. The goal we set and achieved was to present an uncompromisingly powerful, linear and clean sound, minimally dependent on room acoustics.
The shape of the enclosure plays a vital role in loudspeaker performance. The movement of the speaker membrane causes a very complex mixture of sound waves in terms of frequency, amplitude, phase etc. If the shape is rectangular with parallel walls, at certain frequencies two bad things may happen: first, the walls will start to vibrate due to interference and will act as additional speakers, but out of any control. So the general sound will be an unpredictable mixture of the sound coming from the speakers and from the enclosure’s walls. Second, standing waves will occur inside the cabinet, which will increase enormously certain frequencies and will decrease others. Fortunately, there is a shape which prevents both of these phenomena. That shape is oval.
The oval shape is perfect for the sound of the loudspeaker and we went further with our Individual Matrix Technology (IMT) and Liquid Marble core.
We developed this unique innovative technology in house and constantly improve it. As a result we have exactly what is necessary for the perfect sound and excellent outlook: solid and awesome looking enclosure and in the same time we are environmental friendly and energy effective.
We use advanced CNC equipment to prepare individual mold for each separate loudspeaker and then we cast a Marble powder inside the mold. It's unique!
The advantages of this technology apart from the sound are:
· Precise and solid enclosure:
After compression and some other processes we have extremely solid enclosure, excellent for perfect sound.
· Environment friendly:
We use natural materials as Marble and bioplastics, which not pollute the nature. In addition we literally do not have waste during the manufacturing. The waste is mainly cardboard boxes which are recycled.
· Low energy consumption:
We use machines and technologies which are very energy effective.

The loudspeaker cabinet plays a decisive role in achieving undistorted, linear sound. Its shape and material directly influence internal resonances and standing waves—key factors in sonic purity.
Marble, a naturally dense and inert material, offers exceptional acoustic properties. To harness its benefits in an acoustically ideal oval form, we use finely milled marble powder blended with advanced liquid binders. This composite is then cast into a seamless, curved enclosure that eliminates parallel surfaces and minimizes internal reflections.
The result: a rock-solid, resonance-resistant cabinet—engineered for precision, shaped for sound.
The quality of any product is not determined by its strongest part, but by its weakest. That’s why we pay close attention to every single component—from the drivers to the smallest wire—to ensure outstanding performance without sending the price sky-high.
Every part we use is carefully selected and tested to deliver high-end sound at an accessible price, while maintaining a premium feel. Nearly all components are sourced from within the European Union, meeting the highest standards of quality and reliability.
By choosing our loudspeakers, you receive a meticulously crafted product—one of the finest in its class

Our loudspeakers are handmade in our factory near Varna. From casting the marble powder enclosures to assembling and soldering the crossovers, every step is done by hand—with precision, care, and pride.
Each unit passes through multiple quality checkpoints to ensure flawless workmanship and consistent performance. We don’t rely on automation to cut corners—we rely on skilled hands to elevate every detail.
This artisanal approach allows us to fine-tune each product, adapt to custom requests, and maintain the emotional integrity of our design. It’s not just manufacturing—it’s craftsmanship with soul.
When you choose our speakers, you’re choosing a product built with patience, expertise, and a deep respect for sound.
Colors, like sounds, shape the atmosphere around us. They’re always present—subtle, powerful, deeply personal. Each person resonates with different tones, shades, and combinations. The colors we live with, just like the sounds we hear, influence our comfort, mood, and even self-esteem.
Now, you can bring that harmony into your loudspeakers.
We offer full customization in any color you desire. Choose from established systems like RAL, NCS, or define your own tone using our live color selector. Simply pick your shade, send us the CMYK code, and we’ll craft your speakers to match.
You can also select your preferred finish:
Matte, Glossy, or Metallic—each with its own visual and tactile signature.
Use your mouse or finger to select your color.
Once you've found your perfect shade, simply send us the CMYK code—and we'll craft your speakers to match it, flawlessly.