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Thread: Completely removing HU from build

  1. #1
    kdl
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    Completely removing HU from build

    Is it a bad Idea to uninstall the HU entirely running all music from the computer and using a USB DAC for my analog signal?

    Something like thishttp://www.amazon.com/HRT-Music-Stre.../dp/B0038O4UFQ

    From here everything feeds into a 5 channel amp. Right-Left-Sub

  2. #2
    MySQL Error soundman98's Avatar
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    no, it is not a bad idea.

    many of us run it that way--replacing the hu was my main motivation to building a carpc(for the audio tuning options). overall, it seems that this method has started to be referred to as a 'headless' setup (though technically the carpc becomes the headunit)

    that unit has good reviews all around, the only reason i won't buy it is because i require at least 5 outputs for my setup, and buying 3 units is not cost effective.

  3. #3
    kdl
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    I was wondering about that. The USB DAC has two outputs, for each stereo channel. But an amp wants a seperate channel for EACH speaker. Why is this? Just for more indepth fading options? I plan on feeding the input from the DAC into a crossover and EQ before amping the signal, but how do I take two signals and send it to a 5 channel amp that wants 4 minimum

  4. #4
    kdl
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    I was wondering about that. The USB DAC has two outputs, for each stereo channel. But an amp wants a seperate channel for EACH speaker. Why is this? Just for more indepth fading options? I plan on feeding the input from the DAC into a crossover and EQ before amping the signal, but how do I take two signals and send it to a 5 channel amp that wants 4 minimum

  5. #5
    MySQL Error soundman98's Avatar
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    the 'best' way is rca y-adapters. best as in cheapest/easiest to install.

    what eq and/or x-over were you planning on using? some models support upmixing to multiple channels, so y-adapters might not be needed.

  6. #6
    kdl
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    I was hoping that a crossover could do that. I have not found one though. Any idea whrte I migjt find one?

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    I'm planning on doing the same, ditching the head unit for a more clutter free install. I haven't decided yet but I think I'm going to go with this from the store:
    http://store.mp3car.com/TDA7850_Inte..._p/com-140.htm

  8. #8
    kdl
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    Meh, ive already got a rockford amp for the bass and will probably pick up another for the steroe

  9. #9
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    check nivanov's build thread on his trials and tribulations with that amp chipset(link)-- it woks good, but it does require a heatsink, and as far as i know, mp3car is not selling one with it..

  10. #10
    kdl
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    what about a crossover with a built in upmixing for multi channels

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