The U4s in-ear monitor with four drivers features the manufacturer's pioneering patented technologies initially developed for their flagship products. The Slate Blue color is inspired by the world's most beautiful blue-dial watches, while the unique faceplate pattern is inspired by Muonionalusta meteorite pieces. The earphones produce sound effortlessly, delivering engaging deep bass without bleeding into the mid-bass. The balanced mid frequencies and delightful upper-mid range respond well to a wide range of music and recording styles at all volumes; present but not tiring. The tia high tweeter is open and airy, combined with the extended soundstage provided by apex, offering a truly lifelike audio experience. The composition includes one dynamic driver, two BA drivers, and one patented tia driver. Classic 64 Audio sound at a new price point.
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