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  1. #1

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    Default 4 channel amp selection

    A pair of Mobile Monitor 571, Mobile Monitor 651 and one Kenwood MP538u head unit later and I realized I want an amp for my speakers. I really love these speakers because of the low ohm rating so i can pull a lot of power out of my HU. This morning however, the speakers clipped a little bit and I had only been blasting it for about 20 minutes.

    I'm looking at a Kenwood 8404 or 6404. what are your thoughts? should i look into a different amp? I really want to keep the manufacturers identical on my HU and amp, and I'm willing to change my Polk-Kenwood set up for example with a Polk-Alpine, but there are just too many options out there.

    Any input would be greatly appreciated
    Last edited by djzubah; 02-23-2009 at 11:18 PM.

  2. #2

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    forget about manufacturer identicals. get a nice amp for them polks. a nicer hu couldn't hurt either. but amp, at this point, is more important for you. by all means if u have the cash use it on a new hu also.

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    what would you recommend? its just too many choices out there, and looking at all the specs in the world wouldnt help because it would be better to hear each amp setup

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    theres some quality ish out there. what do u want me to recommend, HU? HU and amp? budget?

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    memphis belle for the amp if you plan to add a sub, if not it would be wasted power

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    keep kenwood till new eclipses come out. polk-eclipse

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    i was looking to spend around 200 and sonic electronix has a JL Audio A4300 for 189, would that be a good amp to match with my speakers?

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    probably. probably not as good as cadence a4 which jason at powermaxelectronics.com could probably hook up for $200

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    Are you deadset on getting the discontinued JL Audio amp?

    If not Sonic Electronix has the Power Acoustik LFA4-1200 for $114.99.

    The LFA4-1200 gives you a bit more power, 125w vs. 110w (JL's) at 2 ohms.
    Its signal to noise ratio is a little higher, 97 db vs. 104 db (JL's).
    However, its THD rating is a little better, 0.02 THD vs. 0.08 THD (JL's).

    BTW, they will price match it to MillionBuy.com price of $99.95 if you ask. ;)
    RubiCrawler LJ

  10. #10

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    If you like Kenwood amps, get one. In their price point theyre just as good as anything else and will be well made.
    polkaudio sound quality competitor since 2005
    MECA SQ Rookie of the Year 06 ~ MECA State Champ 06,07,08,11 ~ MECA World Finals 2nd place 06,07,08,09
    08 Car Audio Nationals 1st ~ 07 N Georgia Nationals 1st ~ 06 Carl Casper Nationals 1st ~ USACi 05 Southeast AutumnFest 1st

    polkaudio SR6500 --- polkaudio MM1040 x2 -- Pioneer P99 -- Rockford Fosgate P1000X5D

  11. #11

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    Okay, well i want to be able to pull the most from my speakers and looking at the kenwood 8404 i see its power rating below what the polk audio speaker's recommend. Would it still be sufficient?

    75w rms from the amp to 100w rms speakers

  12. #12

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    Youll be better off with 100. Granted the difference between 75 watts and 100 watts is only about 2 db, its still better to have the extra power. Itll help reproduce those low frequencies.
    polkaudio sound quality competitor since 2005
    MECA SQ Rookie of the Year 06 ~ MECA State Champ 06,07,08,11 ~ MECA World Finals 2nd place 06,07,08,09
    08 Car Audio Nationals 1st ~ 07 N Georgia Nationals 1st ~ 06 Carl Casper Nationals 1st ~ USACi 05 Southeast AutumnFest 1st

    polkaudio SR6500 --- polkaudio MM1040 x2 -- Pioneer P99 -- Rockford Fosgate P1000X5D

  13. #13

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    thanks that atleast helps me know what kind of power im looking for. i really appreciate all the help everybody put in

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