I am running a pair of Dayton RS75-4 on an Eclipse 3520. The amp is old but still sounds good and shouldn't have any issues with the tiny Dayton drivers.
The problem comes at startup. The left mid doesn't work, the 8" midbass in the doors work (on a different amp). If I turn up the volume, the left mid starts working and everything sounds fine.
Have any of you ever seen an amp do this?