wireless amplifier swa-4100

1 ANSWERS

1. amomipais82
   

   Hi,
   After routing the power and signal cables to your amplifier, using the techniques described on page 3, you're ready to mount and hook up the amplifier. First, remove a bolt near the planned amp location. Crimp a ring terminal (included with the kit) to the short piece of black ground cable (also in the kit). Scrape away any paint and clean the bolt location thoroughly (improper grounding is the #1 cause of noise problems), and then bolt the terminal tightly to the vehicle's metal chassis. If you can't find a convenient ground s***w or bolt, drill a hole for one — be careful not to drill into the gas tank or a gas or brake line).
   installation Bolt the ground terminal tightly to the vehicle's metal chassis.
   
   8. Mark off the amp's location on the floor or seat back (or your chosen location), also noting the location of the power connections, speaker outputs, and preamp inputs. Make slits in seat back fabric (or carpet, if the amp is to be mounted on the vehicle's floor), and run the power, speaker, and RCA wiring under the material to the appropriate slits. Here's where a wiring snake (available at hardware or auto parts stores) comes in handy. Insert the snake through the slit, grab hold of the wiring with the snake's grips, and pull it through.
   installation A wiring snake can come in handy for pulling wires to the amp mounting location.
   
   9. Install grommets and terminals (included in wiring kit) at the ends of the power, ground, and turn-on leads, and connect them to the amplifier. Hook up speaker wire and RCA patch cables to the amp. Reconnect your car's negative battery cable, turn on the radio, and the amp should fire up. Start your car, rev the engine, and listen for any engine whine coming through the speakers. If there are no noise problems, re-install the radio and mount the amplifier in place using self-tapping screws. See our Noise Suppression Guide for tips on diagnosing and treating noise problems.
   
   If the amp fails to turn on, check the main power wire fuse, as well as the fuses on the amp. Also, ensure that the ground cable is connected to an unpainted metal surface, such as seat bolts. If the amp does not turn on, check the remote turn-on lead to verify voltage. To test, disconnect the remote turn-on lead. Then connect a small jumper wire from the main power wire to the remote turn-on terminal of the amp while power wire is disconnected. Replace the fuse and verify that the amp turns on. Also, test it with a multi-meter. This will tell you if the remote turn on is working or not.
   installation RCA cables routed through slits in the vehicle's carpet, and connected to the amplifier's signal inputs.
   
   10. Connect speaker wires to your subwoofer box (or speakers). Then, to maximize clean signal strength from your amp, you need to adjust the gain or input sensitivity settings. Here's how:
   
       * Set the input sensitivity controls of your amplifier to their minimum level (counter clockwise).
       * Put in a CD and turn the receiver's volume control up (you might have to raise the amp's gain just a bit to hear the music).
       * When you hear distortion, stop. Turn the volume down until it disappears. As much signal as possible is passing from the receiver to the amp. This maximizes the signal-to-noise ratio, and leaves your system less prone to engine noise problems. Keep the volume setting here.
       * Now turn the gain controls on the amplifier up until it's as loud as you'll play it. If you hear distortion, slightly decrease the gain settings.
   
   Now you've optimized the amp's output with the receiver's volume set near maximum. You can turn the volume almost all the way up and not damage your speakers or amplify distortion. If you're hooking up a subwoofer, a test disc (or bass-heavy CD) is helpful for making final adjustments.

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