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  • BMW adapters and speakers iPod interfaces  By : Roberto Garabell
    The all new Brand BMW iPod interface is available for all versions of BMW 3,4,5,6 and 7 series .This BMW interface is compatible with HD radio and Sirius satellite radio, so the owners can enjoy this broadcast music with high quality sound effects.
  • CAR STEREO MISCELLANEOUS  By : Professor Apex
    What is Alternator Noise?
    Alternator noise is a high pitched whine caused by the car's electrical system. When the engine spins the alternator around, the alternator induces an AC voltage that is converted to DC and used to charge the car's electrical system. It acts like an inverted electric motor (
  • CAR AUDIO SYSTEMHEAD UNITS  By : Professor Apex
    Head Units Overview
    Ideally, your head unit would be used to provide a signal to your amplifiers that is line level and you would not use its internal amplifiers (if any). They usually do not have the power and strength to drive speakers both loudly and cleanly. The line level signal is cleaner than
  • CAR STEREO SYSTEMHEAD UNITS  By : Professor Apex
    Head Units Overview
    Ideally, your head unit would be used to provide a signal to your amplifiers that is line level and you would not use its internal amplifiers (if any). They usually do not have the power and strength to drive speakers both loudly and cleanly. The line level signal is cleaner than
  • AUTOMOBILE STEREO WOOFER BOXES  By : Professor Apex
    Enclosures for Car Stereo Woofers:
    Because woofers move a lot of air they generate a back wave behind them. If you mount a woofer in open space without an enclosure you will get almost no bass because the back wave will cancel out the sound from the front of the woofer. There are many varieties of t
  • CAR STEREO SPEAKERS  By : Professor Apex
    Speakers Overview:
    The car audio you use will have the definitive say in how your system will sound. There are many different types of speakers available. A single speaker can be used to reproduce the full range of sounds but it is not ideal. If the speaker is too big it will have problems reproducin
  • CAR STEREO ACCESSORIES  By : Professor Apex
    Installation Accessories
    Quite a number of accessories are available for your car stereo. Some of them are madatory such as RCA cables and others are elective like wiring harnesses.

    RCA Cables:
    RCA cables are required to transfer pre-amp (line level) signals. Usually, you use this kind of cable for
  • CAR AUDIO SIGNAL PROCESSING  By : Professor Apex
    Equalizers/Crossovers Basics
    Equalizers enable you to fine tune your system. It is hard to get speakers to reproduce sound perfectly. Multiple speaker system things are even more difficult. With an equalizer you can boost or cut certain frequency ranges to tailor the overall sound to whatever you des
  • CAR AUDIO WOOFER BOXES  By : Professor Apex
    Enclosures for Car Stereo Woofers:

    Because woofers move a lot of air they generate a back wave behind them. Mounting a woofer in a free space without an enclosure will cause a loss of bass as the back wave cancels the sound from the front of the woofer. There are many different types of enclosures f
  • CAR STEREO REFERENCE MATERIAL  By : Professor Apex
    Car Audio Dictionary:

    A: Attenuation, loss of dB. AC (Alternating Current): An electrical current that intermittently changes in amplitude and direction. Acoustic

    Fiberglass: Slim fiberglass material used as damping material inside speaker enclosures.

    Acoustics: The science of sound.

    Air Gap: Th
  • Amplifiers  By : Professor Apex
    Amplifier Overview
    Your amplifier takes the signal from your head unit and makes it big enough to be able to drive your speakers. It is good to use separate amps for high and low frequencies but it is not needed. The problem with using one amp for all frequencies is that you cannot adjust the levels
  • Car Stereo Subwoofer Selection Guide  By : Car Audio Professor
    When choosing to upgrade your car stereo system, adding a sub-woofer can produce massive results. Adding volume at low frequencies is like adding a third dimension to your favorite music. Whether you're considering desiging a new audio system, or just adding or more subwoofers to your factory system,

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