What kinda amp/s do i need for 4 JBL 6×9 330 watt three ways, and 2 4000 watt dual voice coil JBL subs?

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  • First of all, those peak power ratings are completely meaningless.
    I assume you’re talking about the w12GTi-MKII which are 7w rms subs — my guess is they are conservatively rated — you could probably give them 9-10 each w/o any problems.
    And the three-way p963’s are 110w rms each.

    You need 2 amps.
    A good size 4 ch that’s around 1×4 at 2 ohms — for example:
    http://www.sonicelectronix.com/item_3967…

    For the subs you’re definitely looking for a class D mono. Since the subs are dual 6’s you’d be working with an impedance of 1.5 ohms. Any 1 ohm stable amp will work fine. You’ll get slightly less power out of the amp at 1.5 ohms than its listed 1 ohm power, but anything in the 14-20w rms range at 1 ohm will give you a good amount of power.

    For example:
    http://www.sonicelectronix.com/item_6581…
    http://www.sonicelectronix.com/item_4383…

    It’s important to understand — 20w rms is a LOT of power and requires a lot of work from your car’s electrical system. Chances are your stock alternator would not survive long and an upgrade to a high output alt would be needed.

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