[. . . ] We provide a manufacturer guarantee for our products bought within the European Union. De or ask for them directly at: Blaupunkt GmbH Hotline Robert-Bosch-Str. [. . . ] Furthermore, you should set the phase control (if present) so that the upper bass sounds as powerful as possible. Do not mount the Vb 800/1000 on the rear shelf, rear seat or at any position which ist open towards the front. To dispose of the product, please use the available waste return and collection systems. Lyssna nu till hur djupa mansröster förhåller sig till högbasen och hur denna förhåller sig till djupbasen. Note: We recommend that you operate the Vb 800/1000 in conjunction with our Velocity series amplifiers. The Vb 800/1000 can be operated in normal as well as in bridged mode (for further details, please refer to the operating instructions that came with the amplifier). In order to achieve a balanced sound, we recommend that you configure the amplifier as follows. First set the volume control to minimum and the crossover control to its middle position. Now play some music on your car sound system that you are very familiar with and that contains some low bass (e. Now slowly increase the volume of the subwoofer until you feel that the sound of the music is well balanced, i. [. . . ] Do not mount the Vb 800/1000 on the rear shelf, rear seat or at any position which ist open towards the front. To dispose of the product, please use the available waste return and collection systems. [. . . ]