User manual AUDIO DESIGN HIFONICS HFI202A

[. . . ] Protect the device from moisture and humidity. ⷠEnsure that your subwoofer enclosure will not get loose during the drive and hurt someone in the passenger cabin. It is recommended, that you mount the subwoofer enclosure with suitable belts or any other mounting solutions in the trunk area. [. . . ] Make sure that all screws are fixed tight after the installation, because loosely connections may cause malfunctions, unsufficient power supply or interferences. If you need to replace the factory-provided fuse observe by any means to keep the same fuse rating (30 A). Use therefor a suitable cable with a sufficient cross section (min. 10 mm2) and install a additional in-line fuse. For safety reasons the distance between the fuseblock and the battery must be shorter than 30 cm. Do not install the fuse into the fuseblock until the installation is accomplished. Automatic antenna) or the turn-on remote signal of your headunit with the REM-terminal of the amplifier. Use therefor a suitable cable with a sufficient cross section (0, 5 mm2). Thereby the amplifier will turn on or off automatically with your headunit. If you use the High Level Inputs instead of the RCA LEVEL INPUT, it's not mandatory to use a turn-on-signal (Please observe therefore section 8 on the next page). GND Connect this GROUND terminal with a suitable contact ground point on the vehicle's chassis. The ground wire must be as short as possible and must be connected to a blank metallic point at the vehicle's chassis. Ensure that this ground point has a stable and safe electric connection to the negative "­"pole of the battery. Check this ground wire from the battery to the ground point if possible and enforce it, if required. Use a ground wire with a sufficient cross section (at least 10 mm2) and the same size like the plus (+12V) power supply wire. Before you start with the installation of the sound system, disconnect by any means the GROUND connection wire from the battery, to avoid any risk of electric shock and short circuits. By changing the acoustic phase you are able to adjust the subwoofer according to the louspeaker system and the vehicle's sound characteristics. The POWER LED lights up when the soundsystem is turned-on and ready for operation. [. . . ] The remote turn-on connection from the headunit to the amplifier is not correct. In case of replacing the fuses, attend by any means the correct fuse rating. By using the High Level Input and not using a separate turn-on-signal (Remote) the incoming audio signal is too low Remedy: Recheck Recheck Recheck Replace Fuse Check the incoming audio signal, use the separate turn-on-signal (Remote) Malfunction: no signal is audible, but power LED lights up Remedy: Turn down the level Turn down the level on the headunit Switch off loudness on the headunit Reset bass EQ on headunit or amp The level controllers are turned up. [. . . ]