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Thread: Much researching, but I still have a few ?'s

  1. #1
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    Much researching, but I still have a few ?'s

    Hello everybody, This is my first attempt at making a carpc and I am very excited about attempting.
    A little bit of background info; car is a Mustang GT that is built for lots of speed,only driven in the summer months. This is my attempt at making it more than just a race car, so I have a fairly good knowledge in computers and a very extensive knowledge about vehicles, but I still have some questions after hours of researching these forums.
    First I am removing my head unit so my main concern with this project is the audio, as long as this setup can be as good as my pioneer head unit I will be more than happy. My other main use is being able to run OBD-II software. Here is the setup I am looking at building:

    Intel BOXD945GCLF2D Intel Atom processor
    http://www.newegg.com/Product/Produc...Tpk=d945gclf2d

    The Mo-Co-So Black Box Mobile Case
    2GB RAM
    M2-ATX Power Supply
    SEAGATE 7200.2 Laptop 2.5" Hard Drive 120GB SATA/300
    http://cgi.ebay.com/ws/eBayISAPI.dll...=STRK:MEWAX:IT

    As I said my main concern is audio, I am currently running 2 sets of kicker components with a kicker 4 channel amp. I understand routing the system using the line out into rca plugs, but the newest mo-co-so black box has integrated rca jacks on one side.http://www.mo-co-so.com/Black-Box-Mo...-p/mcs-bbm.htm. Which would be the wiser choice for better quality sound?
    My other use for this project is running OBD-II software. I haven't decided on what front end to use does anyone have any experience they could share? The two most common seem to be roadrunner and centrafuse, but all the info about them seem to be from years ago, anything newer and better out there or are they still the best?(Also has anyone seen a Bad A$$ Mustang skin for either one, that might persuade me one way).

    So If anyone has any advice about my hardware purchasing or could point me in the right direction of my concerns it would be greatly appreciated. Thanks again!!!!!

  2. #2
    Constant Bitrate Lincolnman's Avatar
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    You ought to get better audio from the RCA Mo-Co-So rather than line out to RCA adapters, less junk in between and better connections are guaranteed this way. I cannot say as to the actual quality of the unit, but logically it ought to be better because there is less chance of a bad connection or signal degradation.
    Electronics work on magic smoke - don't let it out.

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    Is it possible to get 4 channel sound from those RCA jacks? Would I just need a RCA splitter or would that be just 2 channel audio. Also would a pre-amp be a good idea for either situation?

  4. #4
    MySQL Error soundman98's Avatar
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    as long as the mo-co-so has decent jacks, or you use decent quality interconnects, there should be no audible difference with either option you use.

    lincoln has a point that it is adding another connection, but the tiny amount off loss that the connection would cause(every connection does cause a very slight degradation of the signal) would only be measurable with expensive equipment.

    you will probably need a splitter, or will need to rely on the possibly-included computer software to send the audio to the back speakers(some motherboards do not support this).

    i always like to recommend a preamp-- at the very worst, you can turn it down-- but with one, you and always know that you are giving your amps a healthy signal.

  5. #5
    Constant Bitrate Lincolnman's Avatar
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    Erm, I hadn't looked at the particular unit.
    If it has only two RCA outs, you get only two channel audio.
    You should not need a splitter, just run the RCAs to the input of an amp that will put out to all four speakers. This will be four speakers driven, but only two channels audio (stereo not quadraphonic or surround sound). If you cannot find an amp that will take the signal from two inputs and output to four speakers, then you would need splitters.
    This brings you back to the "extra junk" in line and degraded sound, but the connections will still be better than line out (headphone) jacks. In my experience, they're about the worst jacks out there and tend to get loose/poor connections.
    So - two RCA jacks from carputer means two channel audio. Splitters, a preamp, or a two channel signal into a four channel amp is all going to be stereo regardless. As for a preamp, I tend to prefer less complexity when it is not needed, so I would shy away unless you want it for a purpose other than turning two channels to four speakers. Remember, every extra piece of equipment will add at least some (if imperceptable on its own) distortion.
    Electronics work on magic smoke - don't let it out.

  6. #6
    Constant Bitrate Lincolnman's Avatar
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    Quote Originally Posted by soundman98 View Post
    lincoln has a point that it is adding another connection, but the tiny amount off loss that the connection would cause(every connection does cause a very slight degradation of the signal) would only be measurable with expensive equipment.
    Mostly I object to headphone jacks. I never seem to get proper connection with them.

    Good points, though. I was wondering if you would jump in on this thread.
    Electronics work on magic smoke - don't let it out.

  7. #7
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    Quote Originally Posted by Lincolnman View Post
    Mostly I object to headphone jacks. I never seem to get proper connection with them.

    Good points, though. I was wondering if you would jump in on this thread.
    Well technically you could swap out the header for 2 outputs and 4 channel RCA jacks but again theres no quality difference whatsoever....if anything the RCA jacks will have quality issues due to the unshielded wires run between the motherboard headers and the jacks.

    off topic:
    What years the GT? stick or auto?

  8. #8
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    Well at the very least I could try both setups, whichever sounds better. More than likely I will probably just go with the RCA jacks on the mo-co-so case because I have no need for surround sound or even front/rear because all the speakers are the same size, no reason to output different signals. Thanks for the input. And scratch the front end questions,I've done more searching and discovered how cool RoadRunner is, plus its free!

    off topic:
    What years the GT? stick or auto?
    Its a 97, stick. It's stroked out to a 5.0 with a procharger. And a BUNCH of other stuff. I have had it for 5 years and its kinda nice because I live in Ohio, during the snow it doesn't get driven so every winter I get to have all these projects on it, this carputer is my project this year.

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