LupX Brass Wolf Note Eliminator 20g for Double Bass

Wolf tones are affected by unwanted interferences of resonant frequencies within the complex system of string bowed instruments. Mounting a lup.X wolf eliminator on a string between the bridge and tailpiece adds a node point which eliminates, or at least shifts, those unpleasant interferences.

How to install:

Mount the lup.X on the string which has the most bothersome wolf-tone. Start by tuning the eliminator to the same note as the wolf. To tune it, play on the string with your bow below the bridge, between the bridge and the eliminator. Match the note to the wolf-tone by moving the lup.X slightly up or down. Very often when the notes are aligned the wolf eliminator works best.
You can also experiment with different positions nearer or further from the bridge.
Every instrument and wolf-tone is unique. If your instrument and wolf-tone change a lot under different climatic conditions, you may need to move the eliminator slightly to maintain effectiveness.