That JTex is pretty wonderful. I have two and had them installed in my Ibanez Musician, one per pickup. Great sound, and the three position Q boost switch is really nice. These are very similar to the setup in the Alembic Series I. I took them out as I returned the Musician to stock in preparation for sale, and I put one of the distillers into a single pickup fretless bass I have.
http://jtex.ca/2021/02/04/distiller/