User manual BLAUPUNKT VELOCITY VR 250 / VR 2100 REFERENCE AMPLIFIER

[. . . ] The development work invested in the new Velocity Amplifier offers you complete music enjoyment in your car. Our Velocity Amplifiers are fitted with all typical product features expected from a high-end amplifier, but also contain a number of technical highlights as well, such as: · Transistors for power supply using MOSPET technology · Gold-plated screw connectors for loudspeaker and power supply · Chrome-plated amplifier housing To achieve the best possible sound quality from your new Velocity Amplifier we recommend that it is installed by an authorised Velocity dealer and that the matching Velocity Loudspeaker system is used. [. . . ] The cross-section of the positive and negative cable may not be less than 10 mm2. Fit a fuse holder to the positive cable between the battery and the amplifier directly at the battery. Tri-Mode Allows you to drive two loudspeakers and to connect a third speaker in mono operation (bridged mode). positive/negative connections We recommend a minimum cross-section of 10 mm2. Lay commercially available positive cable to the battery and connect using fuse holder. Screw the commercially available negative cable firmly to an interference-free earthing-point (car body bolt, car body sheet, but not to the negative battery pole). Scrape the contact surface of the earthing point until it is blank metal and coat with graphite grease. +12V Controller (GAIN) Using the Gain Controller you can adjust the input sensitivity of the Velocity Power Amplifier to the output voltage of your car radio preamplifier output. When connecting a car radio from other manufacturers the input sensitivity should be adapted in accordance with the specifications of the manufacturer. Preamp-INPUT Please use high-quality Velocity cinch/RCA cables for connecting the pre-amp input for right and left channels Preamp-OUTPUT Output for hook-up of an additional amp (for cascaded amplifiers). [. . . ] When inserting a spare fuse, never replace with fuse types with a higher current or bridge fuses. Operating indicator (POWER / PROTECT) Green lamp: Power amp on, regular operating condition Red lamp: Power amp has been switched off electronically, due to a fault or failure. [. . . ]