Two Profilers into one Power Kabinet

    Anyone ever run two Profilers into an AB box and out to one power kab?

    I play violin through one profiler and mandolin through the other.

    Looking to combine signal at AB box.


    I did this and got a weird constant tone. Kinda like a test tone. almost a high whistle sound.


    Thanks

    I am using A/B switch to connect Stage or Player.

    Cheap BLAXX brand.


    What may cause problems:

    1. Check your AB switch if it is not set to Y.

    2. My switch is passive, maybe active switch is causing noise?