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"low impedance" Years ago i had a rockford fosgate "punch 4040" 4 channel amp. The recommended minimum impedance was 4 ohms mono/2 ohms stereo. I had it wired up 2 ohms mono rear and 1.5 ohms stereo front and even once had all 4 channels bridged at 1.5 ohms mono/per side without ever having any problems! My question is this>>> Anyone out there have a rockford fosgate p200.2 or 400.2 running 1.5 ohms stereo? or 2 ohms mono? Any overheating problems? I would also like to know if anyone has a "hifonics txi-4008" ,"cadence txa-1502" or a "soundstream tra 340.2" that are running impedances below what the manufacturer recommends so i know what to expect if i try to do the same thing. Thanks........................

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It is really hard on an amp to run it below recommendation or specs and most audio companies won't warranty if they catch wind. but i have not seen an amp last long or operate without cutting out when you do this.

Posted on Jan 31, 2009

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Wiring for 2 subs for max performance


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1 Answer

Not a problem just a question


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  • Wire your sub in bridged mode (4 ohm mono)
    + to + on amplifier
    - to - on amplifier
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    Thanks for using FixYa - a FixYa rating is appreciated for answering your FREE question.

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