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Thread: can a carputer compete with a head unit for sound quality?

  1. #91
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    Quote Originally Posted by lastberserker
    One thing I just can't understand is, why folks are so concerned with audio quality? Even a car sitting with engine off in the middle of nowhere is not a good place to listen to music - there is too much stuff scattering, absorbing and reflecting soundwaves.
    because different people like different things.....and some of us like to hear music in our cars!

    that's what makes the world go round you know....different people liking different things!

    if everyone just said foch it, a car just isn't the place to mess with music.....do you think we would have ever had radios in them in the first place?

    with that kind of mentality do you think the wright brothers would have ever messed with the plane? after all, we already have feet for walking, and they even had shoes back then too!
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  2. #92
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    Quote Originally Posted by nubz69
    Both. The judges use a score card to "grade" different aspects of your sound system. Things like soundstage, imaging, tonal accuracy and so on are tested by the judges. In some comps. They will use an RTA to measure how flat your sound systems frequency reponse is. A lot of competitors use two different eq settings for this due to the fact that in a highly reflective enviornment such as a car flat response includes taking into acount additive and destructive resonances. Unlike in a studio where there are little reflections and a flat response would be considered "accurate".
    maybe this is the case in IACSA, but not in USACi - RTAs haven't been used since like the mid 90s because no matter how flat it looks on the RTA it will still not sound right in a car....and people decided that something sounding better was more important than something being flat on a read out on a piece of equipment

    =]
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  3. #93
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    Nice setup Red Gti!

  4. #94
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    Quote Originally Posted by Red GTi VR6
    maybe this is the case in IACSA, but not in USACi - RTAs haven't been used since like the mid 90s because no matter how flat it looks on the RTA it will still not sound right in a car....and people decided that something sounding better was more important than something being flat on a read out on a piece of equipment

    =]
    This is true. I personaly don't belive an flat RTA responce is a a measure of a good car sound system but they do still use them in iasca and I belive SLAP uses them in case of a points tie.

  5. #95
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    Quote Originally Posted by DK888
    Nice setup Red Gti!
    why thank you!
    Jan Bennett
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  6. #96
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    for the audiophile only analog will do get some mcintosh amps and HU

    http://www.mcintoshlabs.com/mcprod/s...wer+Amplifiers

    http://www.mcintoshlabs.com/mcprod/s...26+CD+Changers

    http://www.mcintoshlabs.com/mcprod/s...t=Meter+Module

    or try alpine F1 status componets the best out there tho all this is high end car audio and cost alot of money.... this is like 10k setup not inculding wires it suggest monster cable dont get me kwrong i cant affird this but a computer never will be able to reproduce sound as good as analog... im a huge alpine fan.. and boston too... there alot of good car audio products out there... just go for what you can afford but read up on the products.. alpine makes clean sounding HU prolly the best on the market... if ya can get componets like MB quarts or Boston or focal check out www.caraudimag.com look on there fourms im getting ready for SQ myslef i got allmost my hole system in just now gotta dynamat and do a few others things but.. had surgery a few months ago still healing cant do all my car stuff really... but check out those links and go listen to the products.. there places like tweeter.com and so on

    sincerely joey

  7. #97
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    Yes, Creative Audigy series solutions not best choice for CarPC, and not a good choice for listening Hi-fi at all. I vote for Terratec and M-audio. As for me I am ready to fight to prove - hi-fi sound quality in(or from) CarPC not fiction now and forever! Red shows it to all. But many old school audiophiles never belive that.

  8. #98
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    Quote Originally Posted by NA_Joey
    for the audiophile only analog will do get some mcintosh amps and HU

    http://www.mcintoshlabs.com/mcprod/s...wer+Amplifiers

    http://www.mcintoshlabs.com/mcprod/s...26+CD+Changers

    http://www.mcintoshlabs.com/mcprod/s...t=Meter+Module

    or try alpine F1 status componets the best out there tho all this is high end car audio and cost alot of money.... this is like 10k setup not inculding wires it suggest monster cable dont get me kwrong i cant affird this but a computer never will be able to reproduce sound as good as analog... im a huge alpine fan.. and boston too... there alot of good car audio products out there... just go for what you can afford but read up on the products.. alpine makes clean sounding HU prolly the best on the market... if ya can get componets like MB quarts or Boston or focal check out www.caraudimag.com look on there fourms im getting ready for SQ myslef i got allmost my hole system in just now gotta dynamat and do a few others things but.. had surgery a few months ago still healing cant do all my car stuff really... but check out those links and go listen to the products.. there places like tweeter.com and so on

    sincerely joey
    Yes, obviously "analog sounds better". sound = analog no matter what you do.

    But, if you mean that fully analog equipment sounds better than digital equipment simply because of the fact that it's analog and expensive, you're mistaken. That, and you won't find very many sources of purely analog music these days. If your source is a CD, then you're going to be running 44.1x16 no matter what you do. If your source is an SACD, that's still digital, just with more channels/higher bitrate. Even if you're listening to a record or a tape, there's a good chance it's been passed through some box somewhere that has a DSP chip in it - Digital signal processing = digital.

    "a computer never will be able to reproduce sound as good as analog" - That's like comparing apples to oranges. A computer can be used to reproduce sound, "analog" can mean a lot of things, many of which have nothing to do with sound.

    But if you're saying digital devices will never be able to reproduce a signal (sound or otherwise) as well as analog ones, then you've got something wrong. Yes, using digital equipment to sample a signal degrades that signal. There will always be aliasing, and there will always be the Fs/2 artifacts introduced by the discrete sampling. Unfortunately, with analog equipment you get all kinds of different distortion.. zero-crossing distiortion in push-pull amps, capacitive coupling eliminating low frequency, stray capacitance capping your highs, harmonic distortion introduced by the non-linearity of the transistors, all that stuff. No audio system will ever be fully digital simply because of the fact that audio itself is not. However, if you're talking about reproducing prerecorded sound, digital will always be more faithful to the original because once it is recorded, it doesn't change its bits when you put it on another CD. The same can't be said for any analog recording medium, no matter how good.

    Unfortunately, if we're talking car audio here i'm assuming you're comparing CD's to computer sound cards. On a computer you have the option of increasing your sampling frequency to upwards of 96khz, and your bit depth to 32 bit. CD's are 44.1khz x 16 bit, so already you've got an advantage if you use a computer.

    "this is like 10k setup not inculding wires it suggest monster cable " - I have yet to see someone prove to me that using ludicrously expensive cables with gold plated tips and massive conductors for line level signals improves the transmission of audio signals to any reasonable degree. Good shielding IS important at line levels, but i have yet to hear the difference between a $120 sheilded monster cable and a $20 "standard" cable on the same setup, and i have also never seen a difference when i've put a scope on the cables (under 500khz mind you, but everything above that is going to be filtered in the amplifier anyways)

    Speaker cables are the same story. There are 2 things that get me about speaker cables. #1 - speakers are not succeptable to induced EMF to any reasonable degree, and therefore do not require shielding. #2 - speaker wires DO need to carry a lot of current, and do so at low voltage drops.

    I've worked in production audio for about 5 years now, and the biggest speaker cables for the most powerful drivers (2000W dual 18's) i've ever seen are 6 gague, and those were run over distances greater than 100' with no noticeable degradation in signal quality.

    Always remember, sound is heard in a really narrow bandwidth relatively close to DC (at the MOST maybe 5Hz - 150kHz). Dealing with signals in that bandwidth is really quite easy to do for the most part, transistors work well, there's not a lot of problems with stray capacitance and there's no big issues.

    Do yourself a favour, read a couple books about AC electronics, do some research about how signal transmission works and don't be suckered into buying stupid expensive cables. - Then, buy nicer amps and drivers with the money you save, they'll make a hell of a lot more difference to the sound you hear than expensive cables, or trying to force digital sources to be something other than digital when they get amplified.

  9. #99
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    Class reply ,
    this guy owwnzz ur bass NA_Joey

    Quote Originally Posted by greenwire
    Yes, obviously "analog sounds better". sound = analog no matter what you do.

    But, if you mean that fully analog equipment sounds better than digital equipment simply because of the fact that it's analog and expensive, you're mistaken. That, and you won't find very many sources of purely analog music these days. If your source is a CD, then you're going to be running 44.1x16 no matter what you do. If your source is an SACD, that's still digital, just with more channels/higher bitrate. Even if you're listening to a record or a tape, there's a good chance it's been passed through some box somewhere that has a DSP chip in it - Digital signal processing = digital.

    "a computer never will be able to reproduce sound as good as analog" - That's like comparing apples to oranges. A computer can be used to reproduce sound, "analog" can mean a lot of things, many of which have nothing to do with sound.

    But if you're saying digital devices will never be able to reproduce a signal (sound or otherwise) as well as analog ones, then you've got something wrong. Yes, using digital equipment to sample a signal degrades that signal. There will always be aliasing, and there will always be the Fs/2 artifacts introduced by the discrete sampling. Unfortunately, with analog equipment you get all kinds of different distortion.. zero-crossing distiortion in push-pull amps, capacitive coupling eliminating low frequency, stray capacitance capping your highs, harmonic distortion introduced by the non-linearity of the transistors, all that stuff. No audio system will ever be fully digital simply because of the fact that audio itself is not. However, if you're talking about reproducing prerecorded sound, digital will always be more faithful to the original because once it is recorded, it doesn't change its bits when you put it on another CD. The same can't be said for any analog recording medium, no matter how good.

    Unfortunately, if we're talking car audio here i'm assuming you're comparing CD's to computer sound cards. On a computer you have the option of increasing your sampling frequency to upwards of 96khz, and your bit depth to 32 bit. CD's are 44.1khz x 16 bit, so already you've got an advantage if you use a computer.

    "this is like 10k setup not inculding wires it suggest monster cable " - I have yet to see someone prove to me that using ludicrously expensive cables with gold plated tips and massive conductors for line level signals improves the transmission of audio signals to any reasonable degree. Good shielding IS important at line levels, but i have yet to hear the difference between a $120 sheilded monster cable and a $20 "standard" cable on the same setup, and i have also never seen a difference when i've put a scope on the cables (under 500khz mind you, but everything above that is going to be filtered in the amplifier anyways)

    Speaker cables are the same story. There are 2 things that get me about speaker cables. #1 - speakers are not succeptable to induced EMF to any reasonable degree, and therefore do not require shielding. #2 - speaker wires DO need to carry a lot of current, and do so at low voltage drops.

    I've worked in production audio for about 5 years now, and the biggest speaker cables for the most powerful drivers (2000W dual 18's) i've ever seen are 6 gague, and those were run over distances greater than 100' with no noticeable degradation in signal quality.

    Always remember, sound is heard in a really narrow bandwidth relatively close to DC (at the MOST maybe 5Hz - 150kHz). Dealing with signals in that bandwidth is really quite easy to do for the most part, transistors work well, there's not a lot of problems with stray capacitance and there's no big issues.

    Do yourself a favour, read a couple books about AC electronics, do some research about how signal transmission works and don't be suckered into buying stupid expensive cables. - Then, buy nicer amps and drivers with the money you save, they'll make a hell of a lot more difference to the sound you hear than expensive cables, or trying to force digital sources to be something other than digital when they get amplified.
    Epia SP1300\512 ddr\40g 3.5" hd\cartft-touchscreen\GPS-destinator \M1-ATX\Audigy1\Linksys-wirelessB\anafekkingbigamptojblspkrs.

  10. #100
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    Quote Originally Posted by NA_Joey
    for the audiophile only analog will do get some mcintosh amps and HU

    http://www.mcintoshlabs.com/mcprod/s...wer+Amplifiers

    http://www.mcintoshlabs.com/mcprod/s...26+CD+Changers

    http://www.mcintoshlabs.com/mcprod/s...t=Meter+Module

    or try alpine F1 status componets the best out there tho all this is high end car audio and cost alot of money.... this is like 10k setup not inculding wires it suggest monster cable dont get me kwrong i cant affird this but a computer never will be able to reproduce sound as good as analog... im a huge alpine fan.. and boston too... there alot of good car audio products out there... just go for what you can afford but read up on the products.. alpine makes clean sounding HU prolly the best on the market... if ya can get componets like MB quarts or Boston or focal check out www.caraudimag.com look on there fourms im getting ready for SQ myslef i got allmost my hole system in just now gotta dynamat and do a few others things but.. had surgery a few months ago still healing cant do all my car stuff really... but check out those links and go listen to the products.. there places like tweeter.com and so on

    sincerely joey
    my cadence amps are just as analog as those amps, almost all amplifiers are analog. (this isnt to say that my cadence amps are as good as those the mcintosh ones are better but analog has nothing to do with it) Its kind of stupid to say analog is the only way to go and then show us cd players isnt it? unless you plan on installing a record player in your car a computer can sound as good as the other headunits you mentioned, in fact most music nowdays is produced or recorded on computer even if its going to be pressed to vinyl

    and a note about the previous post and the 6 gauge cables for the subs, remember that car subs require a lot more current because they have a lower impedence than those subs, but i do agree lots of car systems go overboard on cabling
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