Andro bass is not for basshead. It's really fast and super controlled to not bleed to even mid or upper bass. Im okay with that since andro gives a lot air and dead accurate soundstage and separation that ive never had before with other iem. Kpe to me is just different animal. I cant even get any sparkle detail except cranking the volume. I dont like cranking volume with iem since i can only enjoy for about 10 mins and i have ear fatigue issue. With andro, i have it at normal and everything is perfect balance. Accurate bass, mid range is beautiful, highs are perfect. If you need bass, get a narrower tips but will sacrifice air. Ill stick with wide bore. For now spiral dot is my fav. Gonna wait this sunday for another two spinfits, 4.5mm and 5.5mm bore Tip rolling is better than buying new iems. They are cheap and can change the andro to sound completely different.