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need a 3 channel amp recommendation

Discussion in 'Audio & Video' started by Oggy, Oct 17, 2014.

  1. Oct 17, 2014 at 10:16 PM
    #1
    Oggy

    Oggy [OP] Well-Known Member

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    New to the audio scene, I'm slowly upgrading my truck from the inside out. Just installed a avh-x7500bt head unit and love it, I just got my Polk audio db6501 speakers in the mail and before I install them I want an amp so I can do it all at once.

    However I am lost at finding a decent 3 channel amp, I want my 2 speakers and a possible sub upgrade in the future. Im not wanting a crazy set up to make everyone jealous but I want the quality to be good. Nothing worse than that jerk blasting an annoying song with the bass blaring. I plan on sound deadening my truck while doing the speakers as well.
     
  2. Oct 18, 2014 at 8:58 AM
    #2
    JonPOMO

    JonPOMO Member

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  3. Oct 19, 2014 at 7:47 AM
    #3
    timothom

    timothom Well-Known Member

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    Kenwood DMX7705S PrecisionPower Phantom 900.4 Alpine type-r 8" Image Dyanmics CXS64.2
    I just put one of these in my taco and I think it is a great amp.

    It's a 4 channel amp, which is a bit more flexible than a 3. It can run in either 3 or 4 channel mode. I have mine in 3-channel mode and did pretty much what your talking about doing. Plenty of watts, the 'birth' sheet said mine actually measures out at 182 watts per channel RMS instead of 125

    http://www.sonicelectronix.com/item...t[query_id]=46386950&SearchClickout[Ignore]=1
     
  4. Oct 19, 2014 at 9:29 AM
    #4
    JonPOMO

    JonPOMO Member

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    Nice amp! so you bridged channel 3/4 to run the sub?
     
  5. Oct 19, 2014 at 9:58 AM
    #5
    timothom

    timothom Well-Known Member

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    Kenwood DMX7705S PrecisionPower Phantom 900.4 Alpine type-r 8" Image Dyanmics CXS64.2
    Yeap. The amp is made for that. It even has a bass bost circut on the channel 3/4 crossover. Just set it up like this:

    [​IMG]
     
  6. Oct 19, 2014 at 6:10 PM
    #6
    manethon

    manethon TTAS

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    imo, buy a 5 channel with dedicated sub channel,
    Bridge the 4 channels to 2 channels
    nice big power and 3 channels
     
  7. Oct 20, 2014 at 5:37 AM
    #7
    Lurkin

    Lurkin Well-Known Member

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    With many of the 5 channles though, this will end up with the mains overpowering the sub channel.

    Agree with others that a good 4 channel with bridged sub rears works pretty well. I've done both though, and prefer the amps with dedicated sub channels, as the sub channel usually ends up with more, cleaner power then a bridged setup. Just my opinion though.

    I am running a Kenwood XR4S with the fronts and sub channel being used, but I am not using the rear channels, as my rear speakers are running off the HU, as they don't need alot of power for the few times I actually turn them up.
     
  8. Oct 20, 2014 at 5:49 AM
    #8
    ike3000

    ike3000 Well-Known Member

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    a 4 channel, 600 W amp would be the sweet spot for this front speakers, but 300 W is kind of on the low end for subs. the Alpine PDX-F6 is decent compact amp.

    however, if you want something that can grow with your system, then i would go with a 5 channel amp as manethon suggested. 4 channels bridged gives you more flexibility in the future. you could run your fronts active or power rear speakers.
     
  9. Oct 20, 2014 at 6:16 AM
    #9
    sirsaechao

    sirsaechao Well-Known Member

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    To much to list...see sig for more...
    XD500/3
     
  10. Oct 20, 2014 at 5:14 PM
    #10
    manethon

    manethon TTAS

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    Not the amps i get :), the 5 channel is a damn stout amp!
    The H500 is a Hybrid class ab+D
    4x90wrms@4ohms Class ab or 260x2@4ohms
    1x500wrms@2ohm Class D
    15.36 x 9.12 x 2.

    This is actually one of the amps ill be bringing up for a Group buy in the near future :)
     
  11. Oct 20, 2014 at 5:59 PM
    #11
    timothom

    timothom Well-Known Member

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    Kenwood DMX7705S PrecisionPower Phantom 900.4 Alpine type-r 8" Image Dyanmics CXS64.2
    Do you have a link to this H500 amp?
     
  12. Oct 20, 2014 at 7:05 PM
    #12
    manethon

    manethon TTAS

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    only my personal but will get a link sorted out and get ready for the GB
     
  13. Oct 20, 2014 at 8:40 PM
    #13
    SlowComa666

    SlowComa666 Well-Known Member

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  14. Oct 20, 2014 at 9:22 PM
    #14
    manethon

    manethon TTAS

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    man, way to let the cat out the bag.
     
  15. Oct 21, 2014 at 6:16 AM
    #15
    SlowComa666

    SlowComa666 Well-Known Member

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  16. Oct 21, 2014 at 6:50 AM
    #16
    SlowComa666

    SlowComa666 Well-Known Member

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    sorry, i didn't know using google was violating your fun i bet the board they use in these is the same as many "name brand" amplifiers. take a look how many have the same specifications as this 5 channel China amp.
     
  17. Oct 21, 2014 at 7:36 AM
    #17
    manethon

    manethon TTAS

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    i was just playing,
    Many as in many companies have the same boards that all use the same factory, the only difference is the fact your not paying 2-4x the price for it
     
  18. Oct 21, 2014 at 8:16 AM
    #18
    teamcurtis

    teamcurtis Well-Known Member

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    While I agree a dedicated mono channel is ideal, the OP said he isn't trying to go crazy.

    Get a 4 channel, it will be cheaper than a 3 or a 5. Your speakers are rated for 100 RMS, so get something 100 RMS per channel or under. You don't want the amp working really hard to push the speakers, but you don't want to over power the speakers either.
    When you bridge 3/4 you'll get around 300w rms, which will push a 10 really well. Again at that point buy a sub that matches the power you have. JL usually wants about 80% of the rating.
    These amps are prob going to be rated 600-750 watts. (bridging gets more than per channel)

    Make sure it has a cross over, but most all do, so that when you bridge 3/4 into 1 channel for the sub you can block out the highs and tune to match your sub.

    When you hear a car that sounds like shit... its not necessarily because it has too much power its because it isn't tuned. If you have this professionally installed it will sound like shit when you pick it up. Every place ive ever had an amp installed turns the bass all the way up and rarely sets the cross over well. The result is booming muddy bass that overpowers the main speakers. But spending 30 mins adjusting everything to your liking and the style of music you listen to make it sound great!
     
  19. Oct 22, 2014 at 7:28 PM
    #19
    SlowComa666

    SlowComa666 Well-Known Member

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    manethon, what is your price for the magus 5 channel? i am mildly interested if the cost is right
     

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