GRGR221PA-AQB : first ibañez guitar

finally i have own this brand, looking at this guitar it looks good and sounds good the action is already low good for playing but i have an issue with my unit it hums even with clean sound maybe because of the humbucker pick ups or maybe need to be properly ground and sometimes it goes out of tune and with the 6th string high E string it sounds little not the same define sound with the G string and B string open i dont know how to describe it thats the only downside i see probably with my unit only i dont know if others who buy this guitar experience it because most youtube videos i see all reviews of this guitar is good thats why i bought this hoping for good sounding guitar with not so much price but overall it is playable good for practice.... i use this guitar for almost a month now with my headrush mx5 using headphones only still looking forward to buy a guitar amp..