Radial J48 pre A/B switch issue

Discussion in 'Live Sound [BG]' started by Zac Watson, Jun 25, 2019.

  1. Zac Watson

    Zac Watson

    Jun 25, 2019
    Hey all

    I’ve had an interesting situation come up when using a Radial J48 on my pedalboard.

    Basically I run 2 lines, one for electric and one for upright

    Electric line went: Bass>Pedalboard>J48 DI>Side A of A/B Switch>Amp
    Upright Line: Upright>Fishman Pro Eq>Side B of A/B Switch>Amp

    So here’s the problem: When I’m on side A, The J48 works fine, goes through to amp and live through desk, but when switch to side B not only does the thru cut out (as expected) but the XLR out stops working too. Given the A/B switch comes AFTER the through on the DI I don’t understand how this could happen.

    Any help would be appreciated.

  2. ak56


    Apr 2, 2015
    Carnation, Wa
    Check the answer I posted to your same question in the Effects Forum.
  3. tadawson


    Aug 24, 2005
    Lewisville, TX
    It's a powered DI. When you switch, it loses power since it is disconnected from it's source thereof.