Although I have not personally observed the breakin phenomena occuring with AC conditioners, I've been told by both a manufacturer & an "authority" (one of their dealers) that breakin does in fact occur with their devices. I've certainly experienced breakin improvements with interconnects & speaker cables, but I haven't noticed this happening in my rig with line conditioners, or even AC cords for that matter. I'm not saying definitively that it does / does not happen; just haven't had the pleasure at my house, but as always YMMV.
Break in period for power conditioners ?
Is there a break in period for power conditioners. I just put a Monster HTS 2000 in my system. Now it sounds thin and bright. Will this change? If there is a break in period, how long is it? Interestingly my TV looks better but my stereo sounds like .... it needs a doctor.