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Thread: The X-Ray Thread

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  1. #1

    The X-Ray Thread

    I'd like to rebuild an authoritative thread showing the hollow cavities of various models (proto, PS, or production).

    I once had an X-Ray of my Sig LTD but lost it. I am sure someone out there has a copy.

    Please post images you may have of PRS X-Rays along with any details you might have about the model.
    One Life

  2. #2
    Feast like a sultan, I do QueenCityGuitars's Avatar
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    The tone chambers!

  3. #3
    Senior Member MA Pete's Avatar
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    My 7.5 pound Sunburst 245 was most definitely weight-relieved!

    It has been common knowledge that SC 245's and SC 250's have been weight relieved since '07 or so, has been discussed to great lengths on BAM and confirmed.

    This was said to have gone on through 2010, if you recall, one of the selling points for the SC 58's was that they were NOT weight relieved, unlike the SC 245's before them...
    Ted Club President

  4. #4
    Searching for the sound tdarian's Avatar
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    Exactly as I understood it to be, Pete.
    If I Told You All That Went Down It Would Burn Off Both Of Your Ears

  5. #5
    The is the X-Ray thread.

    Let's just zap your SC245 with some high-energy electromagnetic waves and see!
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  6. #6
    Searching for the sound tdarian's Avatar
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    Quote Originally Posted by Shawn@PRS View Post
    Just a note. The one showing the channels (from Martin Music) is a "Singlecut", not an "SC245".
    Quote Originally Posted by Hans View Post
    The is the X-Ray thread.

    Let's just zap your SC245 with some high-energy electromagnetic waves and see!
    This might be a good time for straight answers.
    If I Told You All That Went Down It Would Burn Off Both Of Your Ears

  7. #7
    Quote Originally Posted by tdarian View Post
    This might be a good time for straight answers.
    So... you're going to take my thread (that was supposed to be fun) and brow-beat it with some left-over energy from a different topic?
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  8. #8
    Searching for the sound tdarian's Avatar
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    Quote Originally Posted by Hans View Post
    So... you're going to take my thread (that was supposed to be fun) and brow-beat it with some left-over energy from a different topic?
    No, I finally got over the nebulous answer that I got about the frets. Just would rather not pay for a sexray.

    Edit: I promise I won't be ticked if the SC245s turn out to not be, or to be, weight relieved. If the photos reveal that a scalpel was left behind in one of the cavities, that would be a novelty.
    Last edited by tdarian; 05-30-2012 at 10:16 AM.
    If I Told You All That Went Down It Would Burn Off Both Of Your Ears

  9. #9
    Quote Originally Posted by tdarian View Post
    No, I finally got over the nebulous answer that I got about the frets..
    Yet another issue from a different thread. I can't imagine PRS is going to detail all of their trade secrets on this site (or anywhere else) - but I certainly understand your desire to know.

    Quote Originally Posted by tdarian View Post
    Just would rather not pay for a sexray.
    I dunno, man. A "sexray" sounds like a good time to me. How much are we talkin'?
    Last edited by ]-[ @ n $ 0 |v| a T ! ; 05-30-2012 at 10:18 AM. Reason: Typo & Clarification
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  10. #10
    While we're at this discussion, I need to be X-Rayed, Sex-Rayed, Orgasmatroned and Weight-Relieved.

    Do I go to the PTC for that?

  11. #11
    Pull My Goldtop... Goldtop's Avatar
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    Speaking of Orgasmatron...

    Goldtop
    'And the answer is... none. None more Gold.'

  12. #12
    Well, my SC250 came with "operating instructions" by PRS that state that the guitar has tone chambers. It's from 2007. I can look up the exact date when it was finished, but I assume it must be one of the early ones then.
    Alex

  13. #13
    Searching for the sound tdarian's Avatar
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    Someone should go into those chambers and free the tone, man. It's been fermenting in there long enough.
    If I Told You All That Went Down It Would Burn Off Both Of Your Ears

  14. #14
    Junior Member rschleicher's Avatar
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    I have a more general question (or questions), just out of curiosity:

    I assume that the weight-relief "channels", as well as the larger semi-hollow cavities, are routed out from the top side of the main body wood, prior to the top piece being glued on. (I don't see any other way to do it, basically.) Presumably at least the top surface of the main body has already been planed. I would also assume that the locating holes would have to already exist on the body, so that the CNC machine knows where to route. Then after the top is glued on, then you can do top-side carving/routing (both of the top carve, as well as the pup cavities, holes for the pots and switches, etc.), as well as the bottom-side carving/routing (for the trem cavity, controls cavity, etc.). Is this the basic sequence?

    With my CU24, it doesn't seem like any routing needs to be done before the body and top are glued together. In other words, I think everything can be routed from the top or bottom of the body/top sandwich, after the maple has been glued to the mahogany. Is this true for all of the double-cut guitars, or everything that isn't weight relieved or semi-hollow? I suppose that the wiring channel on the SC guitars from the pup switch to the control cavity might still need to be pre-routed before gluing the top wood onto the body...

    The virtual tour of the PRS factory, in the section that talks about body construction, seems to just show the double-cut process, where it doesn't appear as if any routing is needed before the top wood is glued to the bottom wood. But I hadn't really thought about the fact that it's more complicated for any guitars with weight-relief or semi-hollow bodies, and that even a "solid" SC guitar still has to have the wiring channel to the switch routed out.

    Or am I misunderstanding how my CU24 was built, and there is in fact some amount of body routing that had to be done before the top was glued on, even for this non-weight-relieved DC guitar? You still have to create a wire-channel from the pick-up cavities (routed from the top) to the control cavity (routed from the bottom) - is this done via a horizontal (or mostly horizontal) drilling step? Or were these channels actually routed before the top was glued down?

    Obviously there is no real need for me to understand this - I just find it interesting!
    2011 Custom 24 - Amber Black 10-top (love the 59/09's!)
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  15. #15
    Bobble Head Moderator JMintzer's Avatar
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    Quote Originally Posted by rschleicher View Post
    I have a more general question (or questions), just out of curiosity:

    I assume that the weight-relief "channels", as well as the larger semi-hollow cavities, are routed out from the top side of the main body wood, prior to the top piece being glued on. (I don't see any other way to do it, basically.) Presumably at least the top surface of the main body has already been planed. I would also assume that the locating holes would have to already exist on the body, so that the CNC machine knows where to route. Then after the top is glued on, then you can do top-side carving/routing (both of the top carve, as well as the pup cavities, holes for the pots and switches, etc.), as well as the bottom-side carving/routing (for the trem cavity, controls cavity, etc.). Is this the basic sequence?

    With my CU24, it doesn't seem like any routing needs to be done before the body and top are glued together. In other words, I think everything can be routed from the top or bottom of the body/top sandwich, after the maple has been glued to the mahogany. Is this true for all of the double-cut guitars, or everything that isn't weight relieved or semi-hollow? I suppose that the wiring channel on the SC guitars from the pup switch to the control cavity might still need to be pre-routed before gluing the top wood onto the body...

    The virtual tour of the PRS factory, in the section that talks about body construction, seems to just show the double-cut process, where it doesn't appear as if any routing is needed before the top wood is glued to the bottom wood. But I hadn't really thought about the fact that it's more complicated for any guitars with weight-relief or semi-hollow bodies, and that even a "solid" SC guitar still has to have the wiring channel to the switch routed out.

    Or am I misunderstanding how my CU24 was built, and there is in fact some amount of body routing that had to be done before the top was glued on, even for this non-weight-relieved DC guitar? You still have to create a wire-channel from the pick-up cavities (routed from the top) to the control cavity (routed from the bottom) - is this done via a horizontal (or mostly horizontal) drilling step? Or were these channels actually routed before the top was glued down?

    Obviously there is no real need for me to understand this - I just find it interesting!
    Not sure about the weight relieved routes, but the semi-hollow guitars are routed from the back, and a mahogany cap is glued on. You can tell if a guitar is semi-hollow two ways.

    1: The belly carve is much shallower.

    2: The body is a bit thicker, almost McCarty thickness. You evan ss the additional thickness if you look at the jack plate.

    Here is a typical CU-22. Note how the jack plate extends up into the maple cap...



    Now, here is a semi-hollow CU-22. Note how the jack plate ends beneath the maple cap...



    Also, on lighter stained backs, you can sometimes see a very faint seam where the cap is attached to the back of the guitar...

    Hope this helps...


    Jamie

  16. #16
    Senior Member clcwarlock's Avatar
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    I would love to have an X-ray of my P24 on a t-shirt

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