Sony’s newest headphones eased my XM5 envy with all-day comfort and plenty of bass ZDNetSony ULT Wear headphones review: Brain-shaking bass EngadgetSony’s new headphones and speakers are all about skull-rattling bass The VergeSony Created the Best Wireless Headphones Idea in Years: A Big Bass Button InverseSony ULT Wear Headphones Review: Midrange Maestro With Extra Bass CNET