User manual HELIX H1000

[. . . ] You should be aware of the fact that such components may also be concealed in the doubleskin trim panels/mouldings. General instruction for connecting the amplifiers The HELIX amplifiers may only be installed in motor vehicles which have a 12-volt minus pole connected to the chassis ground. Any other system could cause damage to the amplifier and the electrical system of the vehicle. The plus cable from the battery for the complete system should be provided with a main fuse at a distance of max. [. . . ] In this case it will take some time (depending on outside temperature) until it switches on again. 19 8 - 9 Signal inputs The H 1000 ESPRIT has RCA connections for cinch cables leading from the pre-amplifier outputs, the line outputs of the head unit or the outputs of a pre-amplifier/equalizer, e. g. These connections are gold-plated in order to ensure better signal transmission. 10 Mono/stereo input signal selector For stereo operation (two cinch leads) the switch has to be in position B (stereo), both inputs (8 and 9) are occupied. For mono operation only input 8 is occupied and the switch is in position A (mono). 11 Add-on subsonic filter If reqiured an additional subsonic filter (26Hz/30dB/oct can be switched on. Position A: subsonic filter off Positiong B: subsonic filter on 12 Speaker connection terminals The impedance minimum of all connected speakers must not be lower than 2 ohms. When tuning bass reflex systems, this value will soon be fallen below. When using bass reflex systems we suggest to have the subsonic filter (switch 11, position B) switched on. 13 Level controls for input sensitivity These controls can be used to match the input sensitivity to the output voltage of the connected head unit. These controls are not volume controls and are solely intended for the purpose of sensitivity trimming. 14 Damping factor control For individual sound tuning the damping factor can either be raised (more bass) or lowered (balanced and warm). 15 Operation mode selector switch Position A: The amplifier works linear, the integrated active frequency cross over and the parametric equalizer are switched off. Position B: The input signal is sent to parametric equalizer and can be adjusted with the controls 16 - 19. Position C: The input signal is sent to the parametric equalizer and to the active frequency crossover and can be adjusted with the controls 16 - 19, the switch 20 and the controls 21 and 22. Parametric equalizer With its integrated highly innovative parametric equalizer Equalizer adjustment Fig. 17 14 the H 1000 ESPRIT amplifier offers a wide range of individual subwoofer sound tuning. 16 Phase control This control enables the bass signal to be shifted by 180° in order to achieve optimum delay equalization with the other channels. 1) 17 Setting the center frequencies Control 17 can be used to select a frequency of 50 - 150 Hz on the preset low-pass frequency band (see control 22). This center frequency can be raised using control 26, by between 0 and 9 dB. This is desirable if certain frequencies of the subwoofer are to be enhanced (kick bass) or corrected. 2) 18 Band width adjustment Control 18 can be used to enhance the Q of the frequency set at control 17. [. . . ] 3) Unauthorized tampering with the product will invalidate this warranty. 4) Consult your authorized dealer first, if warranty service is needed. Should it be necessary to return the product to the factory, please insure that a) the product is packed in original factory packing in good condition b) the warranty card has been filled out and attached to the product c) the product is shipped prepaid, i. e. at your expense and risk d) the receipt/invoice as proof of purchase is enclosed 5) Excluded from the warranty are: a) Shipping damages, either readily apparent or concealed (claims for such damages must be immediately notified to the forwarding agent). [. . . ]