User manual BLAUPUNKT V450

[. . . ] 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 · (Made in USA) 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. This is the way to obtain the full enjoyment of the performance of your amplifier. [. . . ] A dry position should be selected for the installation location that guarantees sufficient air circulation for the cooling of the amplifier. Do not connect the loudspeakers to earth, use only the designated terminals. The cross-section of the positive and negative cable may not be less than 16 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 16 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 Gain Adjust Controller Using the Gain Adjust 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. RCA low level input (pre-amp - input) Please use high-quality cinch/RCA cables for connecting the pre-amp input for right and left channels LPF/HPF/FULL switch Prior to installation set the crossover switch on the top side of the power amplifier to the desired position to select the low-pass filter (LPF), the high-pass filter (HPF) or full range (Full). in the Full position the full frequency response at the output is used. The use of the integrated frequency divider is sensible particularly with multipath sound systems with separate subwoofer. [. . . ] Integrated fuses The fuses integrated into the amplifier protect the power amp and the complete electrical system in the event of faults or failures. When inserting a spare fuse, never replace with fuse types with a higher current or bridge fuses. Operating indicator (Power and protection LED) Green lamp: Power amp on, regular operating condition Red lamp: Power amp has been switched off electronically, due to a fault or failure. [. . . ]