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    marquisbrah's Avatar
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    Whats the difference between a crossover, preamp, epiccenter, and equalizer?

    Lately some of my buddies have been talking about getting some of these but i dont really know their reasons to do so. They say for more bass and what not. but in reality, what do these actually do? Are they all useful? Is it reccomendable to get one or all of them?







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    Bettr n' Revrse's Avatar
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    Re: Whats the difference between a crossover, preamp, epiccenter, and equalizer?

    with what setup?




    Western Rep.

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    Re: Whats the difference between a crossover, preamp, epiccenter, and equalizer?

    Quote Originally Posted by Bettr n' Revrse View Post
    with what setup?
    Uhh sorry i forgot to mention that.... 2 old school l7 15s with a kx 1200.1 amp. Cerwin vegas on the front and polk audio on the back. These were the ones the car came with (vegas and polk)




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    Re: Whats the difference between a crossover, preamp, epiccenter, and equalizer?

    Compnents or coaxials?




    Western Rep.

    99 Honda CRV: (Always Changing) ___________ 79 F-150: Show Truck ________________
    -Head Unit: Eclipse CD7100________________ -Head Unit: Eclipse CD7100
    -Sub Stage: Sundown SD-2 8's sealed________ -Sub Stage: Looking
    -Mids/Highs: Deciding_____________________ -Mids/Highs: Scan Speak & Blaupunkt
    -Sub Amp: MMATS Hifi 6 channel____________ -Sub Amp: American Warrior Set (Zed Built)
    -Mid Amp: ^^^ 5/6 bridged at 1 ohm_________ -Mid Amp: ^^^

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    Re: Whats the difference between a crossover, preamp, epiccenter, and equalizer?

    Quote Originally Posted by Bettr n' Revrse View Post
    Compnents or coaxials?
    Coaxials up front i believe, not sure about the rears




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    Re: Whats the difference between a crossover, preamp, epiccenter, and equalizer?

    Idk why you would have comps in the rear...




    Western Rep.

    99 Honda CRV: (Always Changing) ___________ 79 F-150: Show Truck ________________
    -Head Unit: Eclipse CD7100________________ -Head Unit: Eclipse CD7100
    -Sub Stage: Sundown SD-2 8's sealed________ -Sub Stage: Looking
    -Mids/Highs: Deciding_____________________ -Mids/Highs: Scan Speak & Blaupunkt
    -Sub Amp: MMATS Hifi 6 channel____________ -Sub Amp: American Warrior Set (Zed Built)
    -Mid Amp: ^^^ 5/6 bridged at 1 ohm_________ -Mid Amp: ^^^

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    Re: Whats the difference between a crossover, preamp, epiccenter, and equalizer?

    Quote Originally Posted by Bettr n' Revrse View Post
    Idk why you would have comps in the rear...
    Probably not comps. Havent had a chance to take a lOok. Most likely coaxials




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    Re: Whats the difference between a crossover, preamp, epiccenter, and equalizer?

    Well do you have tweets anywhere?




    Western Rep.

    99 Honda CRV: (Always Changing) ___________ 79 F-150: Show Truck ________________
    -Head Unit: Eclipse CD7100________________ -Head Unit: Eclipse CD7100
    -Sub Stage: Sundown SD-2 8's sealed________ -Sub Stage: Looking
    -Mids/Highs: Deciding_____________________ -Mids/Highs: Scan Speak & Blaupunkt
    -Sub Amp: MMATS Hifi 6 channel____________ -Sub Amp: American Warrior Set (Zed Built)
    -Mid Amp: ^^^ 5/6 bridged at 1 ohm_________ -Mid Amp: ^^^

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    Re: Whats the difference between a crossover, preamp, epiccenter, and equalizer?

    Quote Originally Posted by Bettr n' Revrse View Post
    Well do you have tweets anywhere?
    Some POS plastic ones lol just a tiny boost on the voice




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    Re: Whats the difference between a crossover, preamp, epiccenter, and equalizer?

    A crossover filters an audio signal by frequency. A simple way to look at it is, a crossover is what keeps tweeters playing high frequencies, mids playing mid frequencies, and subwoofers playing low frequencies. Most modern amps and some head units have built in crossovers, and component sets include passive crossovers. Crossovers are must have items but for most people the crossovers in their amps and the passive crossovers with their comps will be enough.

    An equalizer adjusts the level of the signal in certain frequency ranges. The bass/mid/treble control on a head unit is a 3 band equalizer. The more bands the more you are able to tailor the sound to your liking. If you aren't competing in SQ competitions or a serious audiophile you probably don't need a 30 band 6 channel EQ, but all systems can benefit from some form of EQ.

    A preamp is used to boost the signal between the head unit and amplifiers, think line-driver, most EQs include a preamp these days.

    The Epicenter is a bass restoration processor, it uses harmonics to add bass where there was little to no bass in the original recording. When the Epicenter was released in the 90s my buddy's shop used to demo it with Van Halen 1984, it made a big difference, but not every recording needs bass restoration. The Epicenter is a cool toy but definitely not a must have item.




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    Re: Whats the difference between a crossover, preamp, epiccenter, and equalizer?

    Quote Originally Posted by vaiboy View Post
    A crossover filters an audio signal by frequency. A simple way to look at it is, a crossover is what keeps tweeters playing high frequencies, mids playing mid frequencies, and subwoofers playing low frequencies. Most modern amps and some head units have built in crossovers, and component sets include passive crossovers. Crossovers are must have items but for most people the crossovers in their amps and the passive crossovers with their comps will be enough.

    An equalizer adjusts the level of the signal in certain frequency ranges. The bass/mid/treble control on a head unit is a 3 band equalizer. The more bands the more you are able to tailor the sound to your liking. If you aren't competing in SQ competitions or a serious audiophile you probably don't need a 30 band 6 channel EQ, but all systems can benefit from some form of EQ.

    A preamp is used to boost the signal between the head unit and amplifiers, think line-driver, most EQs include a preamp these days.

    The Epicenter is a bass restoration processor, it uses harmonics to add bass where there was little to no bass in the original recording. When the Epicenter was released in the 90s my buddy's shop used to demo it with Van Halen 1984, it made a big difference, but not every recording needs bass restoration. The Epicenter is a cool toy but definitely not a must have item.
    Thanks a lot that really helped!




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