sup dove,
i get that every now and then. we even get it at work sometimes, and we got super high quality stuff there. is it like trucker radio? thats what i will get. once in a blue moon i will get a 'har huhblahblohhar heehuhhu' jibber jabber truck talk as a truck with a really big antenna drives by. you live near an interstate? i do.
unfortunately, i dont know what else you can do if you checked your cables and everything. build an iron plated wall around your studio

maybe think about getting a new amp. i use a receiver at home too. i been thinking about getting some powered monitors myself.