Sony Japan has introduced over-ear headphones that features the largest drivers so far available -- 70mm, or 2.75 inches in diameter -- called the MDR-XB1000, aimed at fans of music with deep bass and boasting an incredible 2-30,000Hz frequency range. The company also brought out two different lines of earbud-style headphones available in a range of colors and called the MDR-XB41EX and MDR-XB21EX, also with extra bass response. The new models will be released in Japan on February 10th, and hopefully appear in the US and other countries shortly afterward.
