Tinnitus/speakers/headphones

within the last few years I have had small issues with tinnitus while listening to my main system (system is set up for near field listening), with that said I have also set up a very good headphone system and have separated it to a spot upstairs with a nice easy chair and have been listening to it a lot lately, the other night it dawned on me that the issues I am having with the tinnitus does not occur when listening to the cans and was wondering if anyone else has had the same results. The tinnitus I get during listening sessions with the main system is never to the point that it detracts from my listening experience but still there non the less.