Assessments - 4, GPA: 4.3 ( )

Fabricante : Hifionics Arquivo Tamanho: 3.47 mb Arquivo Nome : Língua de Ensino:

The next step is to scrape the paint off the vehicle chassis , slightly larger than the ground lug, at the connection point. Drill a clearance hole in the chassis, the same size as the lug hole, and use a bolt, spring washer and nut to securely fasten the ground lug. Use petroleum jelly to coat the bolt/lug connection, to prevent oxidization with time. TIP: Use the same approach when installing head units, equalizers or any audio equipment for that matter - run short individual grounds from each piece directly to the vehicle chassis, to minimize ground loops and system noise. All power, ground and speaker connections should be crimped and soldered for reliability. Make sure that none of the cable insulation can chafe against exposed metal in the vehicle, causing short circuits to the chassis. Safe connection sequence: After all cables are run, connect speaker wires to the speakers and amplifiers, then run and plug in RCA cables. Next, connect all power, ground, and remote turn on leads. Now connect all +12 volt cables to the amplifier/s and distribution blocks and fuse holders. Finally, connect the main +12 volt cable to the battery, with the main fuse removed, and we are almost ready to power up the system. Power up the system: The following procedure may seem like overkill, but there is nothing more frustrating when turning on a system for the first time, and it does not work properly immediately. First, make sure the head unit is off, and turn all level controls to minimum (counterclockwise), including the head unit volume control. Set all equalizers to 0 dB (no boost), and all crossover frequency controls at approximate frequencies, as recommended by the loudspeaker manufacturer. Set all input selector and crossover switches as required for the application. Remove all amplifier fuses, and insert the main fuse at the battery. If the fuse does not blow, you can insert the fuse in one of the amplifiers, and we are ready to turn on the system. Turn the head unit on, insert a CD, or select a radio station, and increase the head unit volume control. If the system sounds fine, turn off the head unit, and install fuses in the remaining amplifiers, one by one, till the complete system is powered up and functioning properly. It is highly recommended that the amplifier be mounted to a board of MDF or other solid structure using the 4 mounting screws provided. Avoid mounting the amplifier to metal as this can introduce noise and other unwanted issues. When mounting the amplifier, ensure that it is mounted HORIZONTALLY, as shown in the diagram above, for optimal heat dissipation. Mounting amplifiers to speaker enclosures is not recommended as this can cause damage to the amplifier components. When choosing a location for mounting the amplifier, ensure that you check for clearance from wires, gas tank, electrical devices and brake lines etc. NOTE: This Matrix is a general rule of thumb. Please refer to the manufacturers specific requirements. HFi specifications can be found on page 7. WOOD 7-10 ft. 10-13 ft. 13-16 ft. 16-19 ft. SYSTEM 19-22 ft. 22-28 ft. AMPERAGE 35-50 50-65 68-85 85-105 105-125 125-150 8 6 4 4 4 2 6 4 4 2 2 0 4 4 2 2 0 0 4 4 2 2 0 0 4 4 2 2 0 0 4 2 0 0 0 0 WIRE LENGTH WIRE G AUG E HF AMPLIFIER FEATURE DESCRIPTIONS HFi AMPLIFIERS: ! Each model is capable of 4 & 2-Ohms stereo per channel, or 4-Ohms mono bridged operation ! All Hifonics amplifiers feature a comprehensive diagnostic system, with speaker lead short circuit, except the mono amps which are capable of 4, 2 and 1-Ohm loads. and amplifier DC faults indicated by the red “PROTECT” LED. ! Tri-Mode operation with any stereo pair of amplifier channels is possible, as with all bridgeable ! CAUTION: DO NOT OPERATE ANY AMPLIFIER BELOW THE INTENDED IMPEDANCE. YOU amplifiers. WILL CAUSE DAMAGE TO THE AMPLIFIER THAT WILL NOT BE COVERED UNDER THE ! The input sensitivities for rated output powers are variable from 0.2 volts to 6 volts. WARRANTY PRINTED IN THE BACK OF THE MANUAL. 2 & 4 Channel amps are capable of 4 ! All crossovers are fully variable in their respective ranges. and 2-Ohms wired stereo and 4-Ohms wired mono bridged. The mono amps are capable of 4, 2 ! Crossover filters are 12dB/Octave. and 1-Ohm. ! A POWER LED indicates the powered up and turned on condition. 2 -The LINE INPUT signal is routed directly to the LINE OUT RCA jacks, regardless of the X-OVER setting simplifying daisy chaining of amplifiers. -SUBSONIC: Allows you to adjust the crossover filter from 15Hz to 35Hz. -LPF: Allows yo to adjust the LOW PASS crossover filter from 30Hz to 250Hz. LEVEL: Adjusts the input sensitivity from 0.2 volts to 6 volts. BASS EQ: The Bass EQ is adjustable from 0db to 10dB. REMOTE: This is the input jack for the remote Level control. LINE INPUT: The line input accepts unbalanced (RCA) inputs from 0.2V to 6V. LINE OUTPUT: The line output passes through signal from the line inputs which allows you to daisy chain multiple amplifiers from one signal. The m...

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