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    TheVanMan's Avatar
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    Icon32 Question about bridging 2 amps

    I have 2 12" infinity reference subwoofers rated at about 300W rms in a sealed box. I also have a 4250MTX class D amplifier. It is all hooked up and has been for a few months. well my friend has the same amp as I do and wants to get another amp. He is offering me the amp for $125. I have an extended warrenty on my amp so since they are the same it could apply to both amps. I was wondering if it a good idea to bridge the 2 amps together and connect them to the woofers if it is possible. The amp is rated at 300W rms at 2ohms, so i figured if I bridge them together i would 600W (300W a piece). I know I would need 4 guage wires from the battery and a distributor block to split them to 8 gauge if I want to wire them both up.

    The second idea would be to run each subwoofer to each amp and see how that works. However, that is only 4 ohm so I wouldn't be getting to much extra power and wouldn't be worth the money to replace the cables.

    I been cruising the forums for a while now and I decided to register finally so this is my first post. You guys seem pretty knowledgable about this stuff so I would really like your opinions.



    AOL s/n: Bramab
    Current Car: 2006 Jeep Grand Cherokee

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    Sub amp: JL 1000/1
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    MikeofTulsa's Avatar
    MikeofTulsa is offline The one and Only!



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    unless you could get the gain settings to match exactly on both amps i wouldnt advise bridging them together cause it could hurt the subs...i'd just run each to its own sub.....good luck




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    TheVanMan's Avatar
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    Thanks guys,

    I checked my Birth sheet, it stated that I had a rating of 340rms at 12.5V with 2ohms loads. I probably not going with the bridging idea, I was thinking on the way home from work that it would be probably wouldn't work. I will probably keep the setup I have already.



    AOL s/n: Bramab
    Current Car: 2006 Jeep Grand Cherokee

    Current system (Always under construction):
    Head unit: Kenwood DNX5120
    Front Dash speakers: 3.5 midrange with DRT-25 Tweets
    Front Door speakers: (2) Dayton Reference RS225 8" woofers
    Rear Door speakers: Stock Boston Acoustic speakers (mostly faded out for slight rearfill)
    Sub amp: JL 1000/1
    Speaker amp: Eclipse EA4000
    Subwoofer: JL Audio 13W7
    Sub enclosure: 2.375 tuned to 30hz

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