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Is anyone running an active audio system?

Discussion in 'Audio & Video' started by jwatt, Feb 17, 2021.

  1. Feb 17, 2021 at 1:43 AM
    #1
    jwatt

    jwatt [OP] I heart men

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    I need to replace front door speakers cause one got fried from rain water, so I m seriously considering doing an active setup. My thought is to use a 4ch amp to run 4 channels in front, (2 mids, and 2 tweeters). I assume gain setting on a 4 ch amp applies to all 4 channels, so Im just not certain the gain for mids will be appropriate for the tweeters. I will be using a sound processor, so I can properly adjust frequencies for tweeters. My only concern is the power of the 4 ch amp hitting the tweeters. It seems like tweeters should be ran off a seperate 2 ch amp of lesser power. I d appreciate any advise in this matter.
     
  2. Feb 17, 2021 at 4:11 AM
    #2
    Danman34

    Danman34 New Member

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    Your amp should have separate gain control for front and rear channels. If it does not, it’s probably not worth using it for anything sound quality related.
     
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  3. Feb 17, 2021 at 5:55 AM
    #3
    jwatt

    jwatt [OP] I heart men

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    Maybe my intent isnt obvious to you, but a rear channel is not even part of my scenerio. Do you know what an active system is?
     
    Last edited: Feb 17, 2021
  4. Feb 17, 2021 at 5:57 AM
    #4
    ezdog

    ezdog New Member

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    Do you mean an actively controlled Active DSP System?
     
  5. Feb 17, 2021 at 6:28 AM
    #5
    jwatt

    jwatt [OP] I heart men

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    What? WTF does that question even mean?
     
  6. Feb 17, 2021 at 6:56 AM
    #6
    ezdog

    ezdog New Member

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    It means exactly WTF it asks,what do you mean exactly by "Active"?

    What I am thinking you mean is that a DSP in one of the system components actively manages the Amp channel levels and steering by listening to the interior with a Microphone inside the cab and making adjustments actively on the fly to the speaker output to compensate for noise inside the truck..

    The only other thing that "Active" can really mean is that the speakers are powered by amplifiers which every speaker anywhere has to be in any system where you can actually hear sound from the speakers.

    So this may be what you mean?

    https://www.caraudioinc.com/going-active

    An active crossover vs a passive crossover system,not the way we might talk about this in the pro audio world that I am in.

    You would also need to have dedicated speaker components for each crossover band to make it worthwhile usually so dedicated Low,Mid and High frequency speakers to be crossed over to.

    Of course people use systems like this and the crossover should have level controls for each output and likewise so should any amp worth the money.
     
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  7. Feb 17, 2021 at 7:00 AM
    #7
    dkahs05

    dkahs05 New Member

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    I would say it depends on the tweeters. These are:
    • Sensitivity : 90 dB
    • Frequency Response : 5000-25000 Hz
    • RMS Power Range : 80 Watts
    • Peak Power Handling : 160 Watts
     
  8. Feb 17, 2021 at 7:32 AM
    #8
    purplenova

    purplenova Not a new member

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  9. Feb 17, 2021 at 7:35 AM
    #9
    mountainpete

    mountainpete Explore more

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    Some of the folks in this thread really need to chill out.
     
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  10. Feb 17, 2021 at 8:20 AM
    #10
    Darkness

    Darkness Allergic to white

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    You can run a 4 channel without connecting to the rear input on the amp?

    You are going to use front and rear channels on the amp, they should have separate gain for each.
     
    Last edited: Feb 17, 2021
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  11. Feb 17, 2021 at 8:37 AM
    #11
    ezdog

    ezdog New Member

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    I was just trying to help really.
     
  12. Feb 17, 2021 at 10:33 AM
    #12
    kyle112006

    kyle112006 New Member

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    LOL not sure what his problem is.....you were generally trying to help out and he was the one decided to be a smart ass. I knew what you meant and i wasnt even apart of the conversation lol
     
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  13. Feb 17, 2021 at 12:08 PM
    #13
    1lowlife

    1lowlife Toxic prick and pavement princess..

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    I tried running active back in the days of trying to make the stock Entune HU work with an Audiocontrol LC6i LCI using a PDX V9 amp.
    Ran my Focal PS 165FX bi-amped through the Focal crossover on 4 channels.
    Even tried bypassing the Focal passive crossover and ran the components straight from the amp using the amp crossovers.
    Really didn't sound any better than running them off 1/2 channels with the Focal passive crossover.
    I never used a DSP on that setup.

    Only DSP I ever tried was a JBL MS-8 and it was an epic fail.
    After that I only bought aftermarket HUs.
    Every HU I've bought has the option of 2 way or 3 way speaker setup on the initial settings.
    I don't know much about DSPs, I wouldn't have time or patience to tune one..

    As others stated, it seems it would be better to have a 4 channel amp with separate 1/2 and 3/4 channel gains to go active.
    My Alpine PDX V9 1/2 channel high pass crossover is X10 settable to use with a high frequencies but I guess your DSP will handle that.
    It would be nice to have separate gains to give you more control of your tuning between mids and highs, unless your DSP will do that.



    [​IMG]
     
    Last edited: Feb 17, 2021
  14. Feb 17, 2021 at 3:04 PM
    #14
    Danman34

    Danman34 New Member

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    Lol. Yes. Very familiar. Are you even familiar with a 4 channel amp? You must not since you don’t even know what your amp has......
     
  15. Feb 17, 2021 at 6:22 PM
    #15
    crewmaxlmt

    crewmaxlmt How dare you!

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  16. Feb 17, 2021 at 6:42 PM
    #16
    jwatt

    jwatt [OP] I heart men

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    I got hammered yesterday. I only rememeber making the initial comment. I meant no dis respect, and I m sorry if I offended anyone.
     
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  17. Feb 17, 2021 at 7:38 PM
    #17
    crewmaxlmt

    crewmaxlmt How dare you!

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    Things tend to get heated every now and then but the members on this forum are great about getting back to normal quicker than most. This last weekend was a bit tough on all of us in the PNW as well as some areas in the south.
     
  18. Feb 17, 2021 at 8:48 PM
    #18
    Danimal86

    Danimal86 Looks clean even when its dirty!

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    I'm running 3 way active in the front, 2 way passive in the rear and 2 subs. Powered by 2 5ch amps.
    It sounds amazing.

    Just put your tweeters on the front channel and the midbass on the rear channel
     
  19. Feb 19, 2021 at 10:44 AM
    #19
    SloppyJ

    SloppyJ New Member

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    For your sceneario you would get a 4ch or 6ch amp. Two channels for the front drivers, two channels for the front tweeters, and if you choose a 6ch amp, two for the rear. The 6ch would be the way to go IMO unless you're not even going to run rear door speakers. You can split the RCAs to double them up for the inputs. Each set of channels should have it's own gain setting. Should be pretty simple but you'll have to run new power/ground wire for the amp and get some wire harness adapters to hook into the stock speaker wire if you're not running new wires.
     
  20. Feb 20, 2021 at 8:59 PM
    #20
    Vector W8

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