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Marcus Kim

Senior Audio & Headphones Editor · 9 years reviewing · 242 articles

Marcus has spent nearly a decade testing headphones, earbuds, speakers, and audio gear for consumer publications. He runs a calibrated listening environment and measures every product independently rather than relying on manufacturer specs. At TheTestedHub, Marcus covers over-ear and on-ear headphones, true wireless earbuds, noise cancellation, Bluetooth speakers and soundbars, and Hi-Fi gear including DACs and amplifiers.

Senior Audio and Headphones Editor at TheTestedHubNearly a decade of experience reviewing consumer audio productsReal-world testing across all price tiers with calibrated measurement equipmentBackground in electrical engineering and signal processing

Areas of expertise

Over-ear and on-ear headphones

True wireless earbuds (TWS)

Active noise cancellation (ANC) measurement

Bluetooth speakers and soundbars

DACs, amplifiers, and Hi-Fi equipment

Frequency response and HRTF analysis

Latest by Marcus Kim

Which Infinity Marine Audio Setup Sounds Best?

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What Turntable Should a Beginner Buy?

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Which Micro CD Player Sounds Best in 2026?

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Which Shooting Earmuffs Are Right for You in 2026?

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5 Conference Room Phones for Clear Meetings

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Find Your Voice With These 5 Beginner Podcast Mics

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How to Choose the 5 Best Noise Cancelling Headphones for Flights

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Upgrade Your Sound with These Audio Receivers

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Karaoke DVD Player Buying Guide for 2026

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Get Deep Bass for SPL Builds: Competition 10

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