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    Choosing a 4 Channel Amp

    So after some deliberation on speakers, I am biting the bullet and getting Image Dynamics CTX 6.5cs for the front and ID CTX 5 coax for the rear.

    I am at a complete loss as to choosing a decent amp to power them though... The only suggestion I have received so far is the Precision Power PPI P900.4.

    I'd love to keep the cost down but I don't want to sacrifice quality either so any suggestions are welcome.







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    Re: Choosing a 4 Channel Amp

    american bass vfl 150.4 or the ab ph4100.also the massive nx4




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    Re: Choosing a 4 Channel Amp

    i have hifonics zxi80.4 x 2 lol them ppi 900 are great amps for the money tho no lie

    are you running on stock head unit or do you have after market what which unit if so there can be a big factor in picking a amp as well depending on your crossover needs



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    Re: Choosing a 4 Channel Amp

    Cadence zrs c9 on audiosavings.com Korean made amp from same place ab is made etc is 144 shipped its a steal or boston acoustics gt4100 for 229 shipped link their website inn thre outlet




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    Re: Choosing a 4 Channel Amp

    Right now I am looking at the Alpine HD137BT for the head unit (I've always liked Alpine H/U's) but have never delved that deep into xover settings.




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    Re: Choosing a 4 Channel Amp

    Quote Originally Posted by mclerico83 View Post
    Cadence zrs c9 on audiosavings.com Korean made amp from same place ab is made etc is 144 shipped its a steal or boston acoustics gt4100 for 229 shipped link their website inn thre outlet
    Im leaning towards that boston



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    Re: Choosing a 4 Channel Amp

    I would look for an old school sound quality amp. The ctx's really shined in my car after I powered them from a linear power 952. I ran kicker and alpine to them before and just never got the sound quality I wanted.



    2003 Acura RSX Type S
    Head Unit - Alpine iDA-X200 (USB Ipod Control)
    Front Speakers - Image Dynamics Ctx65cs
    Rear Speakers - Pioneer TS A1674R
    Subwoofers - Alpine Type-R Subs
    Sub Amplifier - Xtant x1001
    Speaker Amplifier - Linear Power 952 X 2
    Processor - Rockford Fosgate (rfq5000), Alpine Pxa-H100

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    Re: Choosing a 4 Channel Amp

    At $200 PPI is a great value. Besides speakers, I used it to power a subwoofer. It never got hot even with cargo placed on top of it. These are very low distortion, very high powered amps.

    http://www.pasmag.com/images/stories...wer/image1.jpg

    Having said this, next time around I'd be tempted to use Alpine's MRX-F65 amp just to check those out. Alpine's MRX amplifiers are supposed to be very nice for money too.

    PS: Now that I saw you mention head unit, consider the Pioneer DEH-80PRS. It's more expensive, but it's worth every penny (active 3-way crossover, 2x16band eq, Auto EQ, time alignment, bluetooth, SD drive slow, rear USB, RCA-in, etc). It will shape SQ far more than an amp ever could.




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    Re: Choosing a 4 Channel Amp

    I did read up that the 80PRS is pretty much the top in terms of SQ but the one thing it is lacking is HD radio. Which is kind of a silly feature to rule it out for, but I am unsure if the pioneer hd radio adapter works with it and I do often find myself still listening over the air sometimes.




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    Re: Choosing a 4 Channel Amp

    I have the nx4 and the ppi p900.4. the ppi is much better



    Head Unit: Pioneer avh-4300dvd,
    Front Stage: Ascendant Audio 6.75", Massive Audio 28mm tweeters
    Rear Fill: Massive Audio CK6-3 6x9 Woofers
    Amps: PPI Phantom P900.4, Sundown Audio SAZ-2500D
    Sub: RE Audio XXX 12" 2.25^3 Tuned to 32

    They sell Kicker at Wal-Mart now. That's saying a lot..

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    Re: Choosing a 4 Channel Amp

    Look up vertex audio on herre they have some good Ref. series CDT 4 channels for decent price




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    Re: Choosing a 4 Channel Amp

    Quote Originally Posted by Pyrolight View Post
    I did read up that the 80PRS is pretty much the top in terms of SQ but the one thing it is lacking is HD radio. Which is kind of a silly feature to rule it out for, but I am unsure if the pioneer hd radio adapter works with it and I do often find myself still listening over the air sometimes.
    Why do you need HD when it is Iphone and Androind capable so you can use pandora or stream online like I do sometiomes if i need HD channel




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    Re: Choosing a 4 Channel Amp

    The only "flaw" of a PPI P900.4 I heard about is that a then-PPI employee posted his test of the amplifier, and while it looked good, channel separation 1khz was in low 30s, which seems kind of low. Unfortunately, this has not been confirmed or denied by a third party test. I know that similar designs from Polk and Hertz did not have this issue. This spec is the last one most people would care about. In the end the "flaw" is only such if you already have an audio system expertly tuned with 30 band equalizer and time alignment, and low channel separation is now the only thing that prevents you from descending into a sonic nirvana. The amount of power these things have is incredible, and they get only barely warm when driven hard.




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