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Losing quality!!

Discussion in 'Recording' started by acjr3, Jan 5, 2009.

  1. acjr3

    acjr3 Guest

    Hey guys, Ive been having some problems with my sey up. I have my equipment set up as follows.

    My snake inputs from the live room come into the patchbay(neutrik) TRS (which I changed from XLR) Then I patch it to my mackie 24/8 then from the mixer's direct out go straight to the audio card.

    Problem is when I hook stuff up direct to the macke, it sounds louder/better compared with going through the patchbay. All of my cables are balanced so Im not sure if I might have messed something up when I changed the connectors or I just aint doing something right. I would appreciate any help you guys can give. Thank you in anticipation for your time and help.
     
  2. NorrisS

    NorrisS Guest

    How long is the snake?
     
  3. Link555

    Link555 Well-Known Member

    Long cable runs mean more resistance and capacitances these can essentially act as low pass filter, damping your signal.

    The more soldering junctions you add the more chance for cold joints, stray capacitance and increased circuit impedance. This further degrades your input signal.

    Take a close look at your solder joints, any cracked or cold joints?

    I wrote a quick solder reference, it has a few examples of what to look for.
    Here is the link:

    http://steller-studios.com/pdf/PCB Soldering Method R0.pdf

    Now the snake you used,
    what type on cable is it ?
    what is the internal wire size?
    And length?

    How about the solder connections on the XLR ends?

    Oh and when you say louder, do you mean almost 2 times louder? Like you lost half your signal thru the snake? Broken wires?

    Hope this helps,
    Link
     
  4. acjr3

    acjr3 Guest

    Thanks for the help. Yeah its like twice as louder and the snake is around 150'. I dont need that much but I already had that snake. Its a pro-co. You think that could be it??
     
  5. Link555

    Link555 Well-Known Member

    Twice loud says to me you lost a side of your balanced connection in your patchbay or snake. Check your soldering are some wires not connected?
     
  6. natural

    natural Active Member

    Perhaps this is obvious, but are you patching into the Mackie at the mic inputs (XLR) or the line inputs?
    So you should be going from XLR from the live room to TRS into the patch bay, then what?
    TRS out of the patchbay back to XLR into the board?
    That's how you should be going.
    Although if you're going TRS from the patchbay to TRS at the mixer you should be losing a lot more than 6db as you would be bypassing the boards mic pre. (which is OK if you're going through an external mic pre).
     
  7. RemyRAD

    RemyRAD Guest

    Bottom line is, unless you have a specific reason that you require microphones on patch bays? It's highly discouraged and a bad idea. And you are probably using crappy consumer patch bays that utilize 1/4" connectors on the back? Bad. Very bad. Plus you do not want to be inserting or extracting patch cords while the phantom power is on. Can you say explosions?!? And for your information, I run microphones that are up to 500 feet on standard 24 gauge snakes with no noticeable high-frequency nor level loss. Oh yeah, an SM57 might be down 1/2 DB at 15kHz. Big deal. No moron would ever know. Phantom power does however start to pose a problem on long cable runs. DC loses its potential faster than AC on lengthy cable runs. Not your problem at 150 feet. Dump the patch Bay & plug the snake directly into the mixer like a smart audio engineer would.

    A very smart audio engineer
    Ms. Remy Ann David
     

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