User manual HELIX HXA 500 Q

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Manual abstract: user guide HELIX HXA 500 Q

Detailed instructions for use are in the User's Guide.

[. . . ] 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. Install the cabling in a manner which precludes any danger of the leads being exposed to shear, crushing or rupture forces. [. . . ] The fuse ratings are 2 x 30 amperes, both must be installed as the amplifier protection rating is 60 amperes (2 x 30 A). 5 - 8 Signal inputs The HXA 400 MK II 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. These connectors are goldplated in order to ensure better signal transmission. 9 - 12 Level controls for input sensitivity These controls can be used to match the input sensitivity of the individual channels - A to D - 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. 15 - 16 Mono/Stereo Selector For switching the amplifier into 4 - channel operation mode both switches must be in stereo position. To use the amp in 3- channel mode (front / sub), the front channel has to be set in stereo and the sub channel to mono/ bridged. 1 Connecting the remote lead The remote lead is connected to the automatic antenna (aerial positive) output of the head unit (radio). 2 Connecting the ground cable The ground cable should be connected to a central ground reference point (this is located where the negative terminal of the battery is grounded at the metal body of the vehicle), or to a bright bare-metal location on the vehicle chassis, i. 4 Fuses The input fuses are connected in parallel and provide protection against an internal equipment fault, i. The system must be additionally protected by a further line fuse located in the vicinity of the battery (max. The fuse ratings are 2 x 30 amperes, and both must be installed as the amplifier protection rating is 60 amperes (2 x 30 A). 5 - 8 Signal inputs The HXA 500 MK II/HXA 500Q MK II have RCA connectors 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. These connectors are gold-plated in order to ensure better signal transmission. High power outputs of radios or similar units cannot be connected directly on the amplifier. 2 cinch leads connected), the inputs can be connected from A to C and from B to D by setting the selector switch to position 2. Connecting the remote lead Connecting the ground cable Connecting the battery cable Fuses Signal inputs Signal input selector Level controls for input sensitivity Speaker connection terminal for the subwoofer Setting the center frequencies Level control for raising the cut - off frequencies Band width adjustment Phase control CPS-Colour Protection System Bridged Selector 10 - 13 Level controls for input sensitivity These controls can be used to match the input sensitivity of the individual channels - A to D - 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 Active low pass filter This control enables the frequency range of the integrated subwoofer amplifier to be infinitely variable from 50 to 250 Hz low-pass. 1) 15 Level control for the subwoofer amplifier This control enables the level of the subwoofer to be adjusted to requirements independently of the other channels. 2) 16 Subwoofer amplifier input selector Setting A The subwoofer amplifier operates with the summation signal of the 4 inputs with allowance for the input level of the individual channels. The signal can be adjusted with the aid of the integrated active crossover controls (controls 14 and 15). [. . . ] 28 Phase Control This control enables the phase of the bass signal to be shifted by 180° in order to achieve optimum delay equalization with the other channels. Incorrect adjustment of the parametric equalizer can have a considerable deleterious effect on sound quality. If this is not immediately possible, turn controls 25 to 28 completely counter-clockwise so that the subwoofer amplifier operates in the linear mode. ; yellow (control 30) = the speakers wires are shorted to ground; red (control 31) = over heated. [. . . ]

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