The BA10 and AS10 have very similar bass. My ZSA has more bass quantity than my BA10 but the ZSA bass is definitely not as tight as the BA10's. Reportedly, the AS10 has slightly more of a mid-bass hump; I don't hear a mid-bass hump in the BA10. In short, if the AS10 bass is anything like the BA10 bass then it is fantastically quick and clean with unquestionable authority when called for and unquestionably tame when not. Mind you the ZSA, despite its coloration, is still a pleasurable $20 in-ear but the general consensus is that the ZSA appears to have been superseded by the ZSN. https://www.head-fi.org/showcase/kz-zsa.23180/ https://www.head-fi.org/showcase/knowledge-zenith-as10.23246/ https://www.head-fi.org/showcase/kz-zsn-knowledge-zenith.23357/ What in-ears or headphones do you enjoy most? What sound signature are you specifically after? All I can say, Pod, is that I've got all my bases covered (ZS6 = analytical pleasure, BA10 = laid-back detail and ZSR = my best outdoors IEM) totaling less than $200, although... ...those BGVP DMG's seem like they'd be right up my alley. That said, the BQEYZ seem to have redirected my attention given the price-to-value equation. By the way, great photos of your gear.