User manual HELIX H500

[. . . ] This is performed by means of four fixing screws screwed into a mounting surface offering sufficient retention and stability. Before drilling the holes for the screws, carefully examine the area around the installation position and make sure that there are no electrical cables or components, hydraulic brake lines or any part of the petrol tank located behind the mounting surface - otherwise these could be damaged. 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. [. . . ] For additional frequency modules see page 10/11. 19 Selector switch for channels A and B For switching the plug-in frequency crossover modules to high pass, full range or low pass. 20 Selector switch for channels C and D For switching the plug-in frequency crossover modules to high pass, full range or low pass. 21 Cinch input and output The cinch socket is employed, as indicated in the description relating to Selector 16, either as a fifth input of the subwoofer amplifier (selector positions B and C) or as an output (selector position A). 22 Speaker connection terminals for channels A and B 23 Speaker connection terminals for channels C and D 24 Speaker connection terminal for the subwoofer This connection consists of two positive terminals and two ground terminals in order to allow a higher cable cross section or to enable two subwoofers to be connected in parallel. The impedance minimum of all connected loudspeakers must not be higher than 2 ohms (in bridged mode of the channels AB/CD, 4 ohms). With the use of ported woofer enclosures this value can be passed very easily. In this case please ask the manufacturer of the woofer. Never connect the speaker cables to the vehicle ground (chassis). Ensure that all the speaker systems are correctly connected, i. e. The plus pole is indicated on 1 Connecting the remote lead The remote lead is connected to the automatic antenna (aerial positive) output of the head unit (radio). This is only activated if the head unit is switched ON. Thus the amplifier is switched on and off with the head unit. 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. e. an area which has been cleaned of all paint residues. 3 Connecting the battery cable Connect the +12 V cable to the positive terminal of the battery. 4 Fuses The input fuses are connected in parallel and provide protection against an internal equipment fault, i. e. 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 H 500 ESPRIT has 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. g. 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. [. . . ] Technical specifications see page 16 5-channel connection Fig. 15 +12V Ground Remote 13 Technical Specifications H 400 ESPRIT Cont. 20 Hz - 20 kHz, +/- 0, 2 dB Total harmonic distortion . . 2 x 30 Ampere Dimensions (H x W x D) mm . [. . . ]