They aren't capacitors. I forget what they are called. Some people say cut them off, others say don't. It's kind of up in the air. The ones that cut them off and had no problems will tell you it's ok. Others will say they had troubles once they removed them and others will tell you "The manufacturer put them there for a reason". It's still up in the air as to whether they are truly necessary. I cut mine off of my HX1000 and it still works just fine.