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///M5

SSA Tech Team
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Posts posted by ///M5


  1. Hey any of you try to compare a FLAC lossless file with a real one? I am just starting to rip my music collection to my PC. My thoughts were to rip it twice. The first time in FLAC to backup to DVD and another in MP3 just to leave on the machine. If the lossless truly is such I would think someone would be coming out with a new HU that plays DVD format FLAC discs, but of course that would be logical.

    If FLAC sucks is there anything else that might do what I am looking to? The main reason I want to do the FLAC to DVD is in if they change it in the future I don't want to go through the reloading of all the CD's again as it is a serious PITA!


  2. Better give me good service, or I will just send an email to the Vice President about it :lol:

    If you voice your frustration with the day manager tomorrow and how it ruined a good portion of your night I am sure they will (and should) comp you something whether it is a nice breakfast, dinner, free night. They are usually pretty good at that.


  3. Fight 'em.

    Then look for the hot hockey moms that are all stuck up and think that their daughter is going to the NHL.  Then their dream gets crushed and they turn their daughters into strippers or night club dancers.

    LOL.

    I hate staying in hotels like that :Doh:


  4. But just to better understand your explanation, by the waveform changing you mean just the phase correct?  With soundwaves, they don't have different waveforms like voltage does, correct?

    Not quite sure I understand you question, so this might answer it. Both are sinusoidal waves with 360 degrees of phase. By summing the sinusoidal waves you can make any waveshape that your speaker plays back including square waves--just like a voltage wave. To simplify my description above, think of using a test CD with just a 1kHz test tone on it and that it will be coming from not just the center of the cone but the whole cone surface. With a sine wave (voltage) driving the speaker it creates a disturbance in the air and makes a acoustic wave if you imagine you are playing a sine tone on infinite repeat from anyone spot on the speaker it will go through a full 360 degrees before repeating itself. Since the speaker cone isn't flat there will be a different distance to a target (mic) from each different spot on the cone so the wave will arrive at a different times. Since there is a little delay and the frequencies were created at the same time it will have to arrive at a different spot in the phase of the wave..


  5. But how does the shape of the cone affect the waveform?  I'm not understanding that.

    As I said in my previous post it will be inaudible, especially in a car but if by shape of the cone you mean angle or surface features it would only cause a little phase shift. It is sort of the same problem you have if you move your tweeter and mid a ways away from each other only it is happening on a much smaller scale. If your cone has enough of a slant to give you say a 1" difference the sound wave propagating from that spot on the cone will have a 1" headstart or have a 1" phase difference than a wave propagating from the center of the speaker. At a frequency with a wavelength of 36" it would be a 10 degree phase difference, on a frequency with a wavelength of 2" it would be a 180 degree phase difference and so on. Of course this was simplified for the example as sound waves will travel in all directions and as it propogates from its point source and there will be interference from all of the waves, but again your not going to hear this.


  6. I gotta run, buddy of mine is returning his leased car tomorrow and said if I put in his stock speakers back in and brought dinner I could have his Boston's. He thinks they are Pro6.5 coax's, not sure but will find out. Not going to let those pass up for nearly free.


  7. Are you close to Chicago?  Depending on when you are on the list I might go that way if you are.  The M does like to stretch its legs and winter is coming.  I'd much rather do it before snow--in fact I have a set of tires I want to wear tf out.

    Lol, if you have a set of tires you want to 'wear out' I'll help pay for the gas to dayton just so I can ride along while you're wearing them out...

    Anybody know ~ when I should have the wire.... Nick, how thick is the wire as I'm going to have to drill holes in my pods for it....

    Well I don't have the heart to buy 18's when I haven't worn the rubber off the 17's. Then I can put shows on the 17's too.


  8. Oooo, a 4 stroke. Since you are ready though, you know it won't snow. I was going to buy a snowmobile 5 years ago, but it hasn't snowed since hardly. Except a few random big storms. I keep looking though maybe this year.


  9. Getting close now! I just glassed up my tweeter pods, pics will come after I trim the glass off as it looks like a bunch of fiberglass now.

    Here are shots of the tweeter baffle and the insert that I made to hold a laser pointer for aiming the tweeters. Currently they are aimed at the opposing headrest like the originals. I will play with their position after I have a chance to break them in and listen to them a bit.

    post-967-1131741397_thumb.jpg

    post-967-1131741413_thumb.jpg

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