4 ohm speaker

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Cadillac Audio, Video and Security Systems Discussion, 4 ohm speaker in Item Specific Cadillac Discussion; just bought 4 ohm infinity speakers for a 1992 delco deville radio/ cass, quick question what will happen if i ...
  1. #1
    jetengine is offline Cadillac Owners Member
    Automobile(s): Cadillac
    Join Date
    Jan 2007

    4 ohm speaker

    just bought 4 ohm infinity speakers for a 1992 delco deville radio/ cass, quick question what will happen if i do hook this up, and what is the ohms for this radio, would like to keep everything stock, thanks

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  3. #2
    CadillacSTS42005's Avatar
    CadillacSTS42005 is offline Banned
    Automobile(s): 2005 STS4 1SG: GM Acc Lights, Corsa, Platnium Grille, Volant
    Join Date
    Oct 2005

    Re: 4 ohm speaker

    i think those factory were either 10 or 8 ohm
    it shouldnt hurt anything
    but they will prob sound louder than your rear speaks so you may wanna fade it

  4. #3
    EldoRedo's Avatar
    EldoRedo is offline Cadillac Owners Fanatic
    Automobile(s): 1991 ETC (Crimson)
    Join Date
    Jul 2006
    Bethesda, Md.

    Re: 4 ohm speaker

    I also just bought 4 ohm Infinity speakers for a 1991 Delco ETR am/fm/cass/eq. Yes, the factory speakers were 10 ohm. I have been reading very conflicting accounts. Some say, it's fine. Others say, you'll burn out your radio.

  5. #4
    PineyJustice is offline Cadillac Owners Fanatic
    Automobile(s): 2001 deville base, 2008 dts
    Join Date
    Apr 2012

    Re: 4 ohm speaker

    The new speakers are lower impedance, this means you will definitely do some damage if you crank the volume up. If you put 4 ohm speakers in, you are cutting the resistance of the speakers in about HALF, which means as a rough estimate the head unit will try to drive between half again and double the power to those. The radio and amp will operate fine at lower volumes, but if you accidentally crank it up past the point where it is driving the stock ones the 20 year old amp/radio handling being driven that far out of spec is anyone's guess.

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