The company Alto-Extremo was founded in 2004 in Germany. For the development of the individual products, a team of engineers is responsible. Production takes place exclusively in Germany. We are right to advertise “Made in Germany”. This quality and functionality makes us unique and justifies our success to make your Hifi-device sound better. Since 2004, we deal with the problem targeted resonance transfer. Based on our experience diverse absorbers are developed. Through our wide range of products, you have the opportunity to optimize your device in all areas. With our absorbers you will be able to reach unprecedented acoustic patterns with a better spaciousness, clearly defined device and starting dynamics.