There are usually two factors that can either make or break your music listening experience — sound quality and isolation. The former mostly depends on the size of the drivers, frequency response, impedance, and the overall build quality of the headphones. When it comes to isolating outside noise, however, there are largely two solutions headphone manufacturers opt for — active and passive noise cancellation. Passive noise cancellation simply leverages the snug fit and closed-back construction of headphones to prevent
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