Sony\u2019s Extra Bass line of headphones<\/a> has given listeners an added dose of low-end tone for years, and was generally cheaper than its high-end 1000X cans<\/a>. The company is still keen on offering brain-rattling bass to those who want it, but the Extra Bass moniker and its confusing alpha-numeric product names are gone (more to come on that change). Today, Sony is introducing ULT Power Sound, a feature it\u2019s calling the \u201cultimate step into the evolution\u201d of its portable audio gear.<\/p>\n ULT Power Sound will also be available on Bluetooth speakers of various sizes, but the first headphones to feature the new audio direction are the ULT Wear ($200)<\/a>. A direct replacement for the WH-B910, the ULT Wear contains 40mm drivers that Sony says are specifically designed for deeper bass. If the stock tuning isn\u2019t enough, there\u2019s a ULT button for two more levels of low-end boost. Plus, the company crammed in some of its best features from more-expensive headphones: the V1 audio chip, 30-hour battery life, Quick Attention mode, 360 Reality Audio with head tracking and more.<\/p>\n