Sennheiser’s consumer audio division is steadily building its entry-level HD 500 series of headphones this year. The latest hardware to hit the shelves is the HD 550 open-back set that touts a featherweight design, a frequency response of 6Hz to 39.5 kHz, and modular components, which means users can easily swap out earpads and cables to suit
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Author: Aaron Leong
