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Passive splitters and phantom power?

  • 27-10-2008 2:59pm
    #1
    QuadLeo
    Registered Users, Registered Users 2 Posts: 625 ✭✭✭


    I have a query that I can't seem to find an answer to. Maybe somebody here could help me out.
    I need 16 splitters in order to get signals from a live band on stage into my recording rig and also get the signals to the FOH desk via stage box. This way I'm not interfering with FOH mix and vice-versa. So my plan is to buy 4 of these splitters. My questions is say for example the bass DI needs 48v and these splitters are passive, can the FOH desk send the phantom power along the XLR into the splitter and still get to the DI box?

    My signal path would be XLR out of DI box> into splitter> splitter output 1 to front of house> and splitter output 2 to my recording rig.

    I have a feeling the 48v will get to the DI box but I need to be sure before I buy the gear.

    Cheers


Comments

  • #2
    studiorat
    Closed Accounts Posts: 6,408 ✭✭✭studiorat


    You need a MIC splitter. If the passive splitter uses a transformer then I don't think the phantom which is DC will get to the amp. I usually specify a MIC splitter than just a passive splitter, they have phantom power built in.

    There's two types of passive split, parallel and transformer split.

    http://www.whirlwindusa.com/tech06split.html


  • #3
    Savman
    Closed Accounts Posts: 8,323 ✭✭✭Savman


    Worst case scenario you could just have some 9V batteries on standby for your DI boxes. Won't help you with a high end condenser mic however.


  • #4
    PaulBrewer
    Registered Users, Registered Users 2 Posts: 7,790 ✭✭✭PaulBrewer


    studiorat wrote: »
    You need a MIC splitter. If the passive splitter uses a transformer then I don't think the phantom which is DC will get to the amp. I usually specify a MIC splitter than just a passive splitter, they have phantom power built in.

    There's two types of passive split, parallel and transformer split.

    http://www.whirlwindusa.com/tech06split.html

    I believe the 'Rat is correct ...


  • #5
    anders
    Closed Accounts Posts: 31 ✭anders


    QuadLeo wrote: »
    ... So my plan is to buy 4 of these splitters. My questions is say for example the bass DI needs 48v and these splitters are passive, can the FOH desk send the phantom power along the XLR into the splitter and still get to the DI box?

    I've been looking into splitters myself over the last few weeks and was also concidering the t.Racks splits. I never found a straight answer to if those will pass phantom or not. I personally don't see why they wouldn't. One of the connections shouldn't pass trough a transformer. Turned out I didn't need splits so I never needed to find out. Best thing to do is contact Thomann customer support directly.


  • #6
    PaulBrewer
    Registered Users, Registered Users 2 Posts: 7,790 ✭✭✭PaulBrewer


    anders wrote: »
    I've been looking into splitters myself over the last few weeks and was also concidering the t.Racks splits. I never found a straight answer to if those will pass phantom or not. I personally don't see why they wouldn't. One of the connections shouldn't pass trough a transformer. Turned out I didn't need splits so I never needed to find out. Best thing to do is contact Thomann customer support directly.

    The first thing the mic hits is what determines the quality from thereon.

    I've not heard the t.racks so I can't comment on them directly.

    However I've used XTA and Klark Technik. Both sound very good.


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  • #7
    Savman
    Closed Accounts Posts: 8,323 ✭✭✭Savman


    PaulBrewer wrote: »
    The first thing the mic hits is what determines the quality from thereon.
    +1, if I was ever looking for a splitter box then I think I'd be looking at the KT units. Anything cheaper and you just don't know what you are getting.


  • #8
    studiorat
    Closed Accounts Posts: 6,408 ✭✭✭studiorat


    + 1
    Didn't want to start putting t-bone gear down etc but, buy cheap buy twice an all that.
    without the signal degradation experienced with passive splitting solutions

    I usually hire something like this> http://www.laaudio.com/product_MS1224_1385.aspx or else take a feed from the FOH console. Direct outs ot inserts ot something...


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