I use DJ for 1 year in one of my Laney GH50L. Today I Retube my two heads with JJECC83S dn V1, V2, V3 and V4 in 12AX7EH. Distortion in the ct a little too bright of a sound gives way Laney o mediums are ProMinent. Well, now, this is a combination that suits me (I play almost no light in his), but objectively, they are loupiotte trs sharp and the background noise is more than acceptable (the ADP origin are the just in case, but that's it). However, if you are looking for high gain bxs, must look elsewhere. I found my personal happiness. I recommend it without delay! "9" because I know I still express, mix with other lamps preamp.