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Thread: Hooking up multiple amps to Mac Mini

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    Newbie RhinoGorilla's Avatar
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    Hooking up multiple amps to Mac Mini

    I have 2 amps in my suby that i would like to hook up to a straight mac mini system. What's the best way to acheive this? I also want to make it so I can add more amps on later down the road.

  2. #2
    CarFrontEnd Creator iamgnat's Avatar
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    The simplest is to get a line with a headphone plug on one end and RCA plugs on the other. Then get RCA splitters to run lines to your amps. That's how I have mine setup with 3 amps.

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    Newbie RhinoGorilla's Avatar
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    How are you controlling the Treble, Bass, Fade, Balance and Subwoofer?

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    That I know of, on the mac there is no way to do it at this time. Ideally you should be able to get any number of multiple channel audio outputs that connects via usb or firewire. If I have done my research correctly Apple has built in all of the basic audio controls that we need in to their Core Audio portion of OSX. High pass, low pass, parametric EQ's, 31 band EQ's, etc. are all filters that are listed as built in to Core Audio.

    Someone should be able to write a program that allows you to assign those filters to specific audio outs, but as of yet, I havent found anyone who has done it. For now if you want control just use a simple 2 or 3 way electronic crossover or if you have amps that were made in the last few years they probably have onboard crossovers.

    Personally I will use a regular car audio processor to do all of that work, taking just the standard mini audio out.

  5. #5
    CarFrontEnd Creator iamgnat's Avatar
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    Quote Originally Posted by RhinoGorilla View Post
    How are you controlling the Treble, Bass, Fade, Balance and Subwoofer?
    By using the line out jack, you can't fade just balance (SysPrefs). As mentioned, you can get USB adapters that will let CoreAudio applications (Audio MIDI Setup in Applications/Utilities will do some of it) do that type of tweaking. The two adapters i've tried turned out to be a bust though and i'm happy enough with my audio that I have more important things to futz with

    -dave
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    CarFrontEnd (now it's own sub-forum!!!!)

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    Some day all of the other stuff will be gone and we'll get the programming minds to working on this kind of stuff lol. If it was easy it'd be done already. I'll play around with making a way to get it done that will be completely cumbersome and a pain, but I think I can figure it out using a couple of different programs,we'll see.

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    Bugbyte's Avatar
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    Griffin Firewave
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    Dave has used both with mixed results. The audigy supposedly works with the mac but you can't control it via software. The firewave 'forgets' settings, if I recall correctly.
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  8. #8
    Newbie RhinoGorilla's Avatar
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    Thanks for the info guys.

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    QCar Creator Jirka Jirout's Avatar
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    We have support for multi-channel sound built into QCar. The problem however is to get multi-channel device(s) that acutally have volume controls. Strange as it sounds, most USB/FireWire sound adapters do not provide Core Audio interface for independent volume settings. Even when you create an aggregate device from two physical devices that do have volume control for each channel, the resulting device has no volume control at all - not even the master control.

    As a result, we do not use these functions and rely on the HQCT USB tuner to handle balance and fade settings.
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    That answers that.

    Thanks Jirka

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