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Mixers main out into a DI

Discussion in 'Recording Gear and Equipment [BG]' started by fenderaholic, Jul 12, 2005.


  1. fenderaholic

    fenderaholic

    May 25, 2005
    Burbank ca
    if i plug a mixers man out to a DI and then to my computers line in will all the signals plugged into the mixer become balenced ?
     
  2. WalterBush

    WalterBush

    Feb 27, 2005
    Yuma, Az
    Not necessarily. A DI's purpose is to take high impedance signals and change them to low impedance signals. Some will balance an unbalanced signal, some will not. Some have preamps for additional gain, but most don't.
     
  3. Droog

    Droog

    Aug 14, 2003
    PDX
    I am confused. Are you saying your mixers main outs are unbalanced? That is not very common but it does happen. Generally though mixers main outs are balanced, either XLR or TRS and usually the 1/4 jack is balanced or unbalanced, depending on the cable you use. So most likely the outputs of your mixer are already balanced, now the sources may be whatever, but the mixer will balance them essentially.

    Also, running into a DI will take the signal down from line level to mic level, yes it will balance it (if its unbalanced) but also makes it a weak signal not suitable for a line level input.

    Also, your computers line in is probobly unbalanced. Unless you dropped some $$$ and got a decent card/interface you are going to have unbalanced inputs. Let me guess 1/8" mini jack right? That is an an unbalanced stereo input. What you need is either a dual 1/4" or XLR (depending on the mixers main outs) to 1/8" TRS cable. HOSA makes them.

    Why are you concerned with getting a balanced signal into your computer? Its probobly a short run so its no big deal to go unbalanced.
     
  4. fenderaholic

    fenderaholic

    May 25, 2005
    Burbank ca
    im interested in getting the behringer 802 mixer. when i recorded my bass the single was getting distorted but when i turned down the volume on my bass it did not distort any more i thought i needed a balenced signal to stop making it distort. what cable would be best to use for this mixer. my sound card did not cost big bucks lol. so i dont think it has a balenced line in.
     
  5. Droog

    Droog

    Aug 14, 2003
    PDX
    A balanced signal has nothing to do with the distortion you were experiancing. The major difference between balanced and unbalanced is that a balanced cable is far less suseptible to interferance and can be run for hundreds of feet, that is not so with an unbalanced cable. The signal is the same.

    There are a couple of things that could have caused the distortion on you were getting. The fact that you turned down your bass and it went away indicates that you have an improper gain stage somewhere. Either the gain on the channel you where going into was set too high or the output of the mixer was set too high, either way by decreasing the level at your bass would decrease the level of the whole signal chain.

    If I were to be using that mixer I would plug my bass into channel 1, bring the trim up to about 10 o'clock, bring the channel 1 level up to about 12 and then start bringing up the master untill I had good level showing on the leds. The import thing here is to get good level on the channel you are using, in this case 1, then use the master to control how much you are sending out to your computer, if distorts turn it down, if it is not enough turn it up a bit. If you find that not matter what you do you can't get enough signal or its way too much. The trim knob on that channel is the largest gain stage you have on that mixer. Bringing it up or down will alter your level greatly, that is why I suggested starting at 10 o'clock, though depending on the bass you may need to get all the way up to 3. Whatch those LED's, that is what tells you how hot your signal is.

    As far as connecting to a PC I would get a dual RCA to 1/8" TRS cable.HOSA Tech. Then I would attatch the RCA's to the Tape outs on the mixer and then use the 1/8" jack to go into your computer. The reason I say to use the Tape out is because it is an exact copy of what comes out of the main, only on RCA and that leaves your mains available to feed another source that requires 1/4" for input.

    Hopefully all this makes sense, you really don't need a DI at all, at this point. It is recomended that you use a DI before you go into a mic pre, such as the example above, but you will be perfectly happy just going straight into the line input on your mixer.

    Good luck. Also, when you can afford a better sound card, something with 1/4 or XLR inputs, do it.