Videomaker – Learn video production and editing, camera reviews › Forums › Technique › Sound › 4-channel mixer with wired 3.5mm lavalier – no sound › ” Plug either lavalier into
" Plug either lavalier into the mixer channels 1 or 2, neither one makes sound. " Is there a switch somewhere on your mixer which selects input levels ( mic / line )? Are the mixer input jacks " combo " jax; ie, XLR type with a 1/4" jack in the middle? Some gear uses these type input jax, XLR for mic level and 1/4" for line level. The results you are describing sound likeng fed into a line level input.