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Thread: aux connect vs dirrect to amp audio?

  1. #1
    Join Date
    Jun 2004

    aux connect vs dirrect to amp audio?

    Just wondering - how many of you are using an Aux connection (from your car-pc to the rear of a cdplayer) to drive the audio -vs just running audio dirrectly to an amp

    Just wondering if there was any down side to using an Aux connection on the deck -

    thanks guys

  2. #2
    Maximum Bitrate
    Join Date
    Jun 2004
    Bay Area, California
    there is no time whatsoever that going ot the radio would be bad.

    maybe that you are adding another device in teh signal line, that may be detrimental to the quality of sound. but the potential benefits far outweigh any cost, either hte one I suggested, or any others that may be predicted.

  3. #3
    Top Ramen lgbr's Avatar
    Join Date
    Feb 2004
    Spokane, WA, US
    I go right to the amp.
    Audio Rockford Fosgate: 900 Watt 4-channel amp, 501bd Mono amp
    Computer AMD 2400+ XP, 1 GB DDR RAM, Orbit Micro 250W DC-DC PSU

    Head units are for cheaters!
    sure some girls fake orgasms.....but it's guys like me who fake the whole relationship

  4. #4
    Low Bitrate philstuf's Avatar
    Join Date
    Jul 2004
    The only trouble I see is that when you add devices to the chain, you increase the potential to inject noise and the potential for "ground loops". Ground loops were the biggest issue I ever saw roll into my shop in the 7 years I spent in car audio.

    If you go straight to the amp, you will eliminate a couple of places for noise to get in, but lose the volume control on your radio (I like having a nice "master" control though).

    Just do a search on google for "ground loop" and "engine whine". You will find LOTS of sites that can help you eliminate the potential for that. A couple of good grounding rules follow:

    1. Locate a heavier piece of metal on the car, do not just tap a screw into the floorboard. Something like a factory bolt works nice, as the metal around it i generally thicker than open sections of steel.
    2. Ground as many of your audio devices to the same point. This way they will all have the exact same reference for ground, lowering the potential for noise entry. Yes, even the head unit.
    3. Use heavy gauge wires for ground. Don't skimp on the ground. If the positive used a 10 gauge wire, the ground should too.

    Weeee... I love looking back at my old job.

    1995 Thunderbird
    Clarion 9375 HU, 2X CDC1255 12 Disc changer, 7500 DSP/EQ/Xover (w/fiber optic interconnects), 7501 TV Tuner/Aux
    Xtant 1001d 1 Ch, 4180c 4 ch
    7" Xenarc VGA touchscreen
    1GHz Via-Nehemiah, 250 GB HDD
    XMPCR w/TOSLink, SB Audigy NX

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