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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

5 Conference Call Bluetooth Headsets Worth

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We Tested Bose Under Cabinet Radios: Honest Picks

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What to Buy: Running Earbuds That Stay Put

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JL Audio vs Rockford vs Alpine: Best Compact

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Which Amplifier and Receiver Is Right

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2 Channel Stereo Receivers That Deliver Real

Guide

Sony vs The Rest: Our 2026 Stereo System Shortlist

Guide

Earmuffs That Lie Flat But Sound Big

Guide

5 Under Counter Radio CD Players Worth Your Counter Space

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Integra Receivers: 5 Models Ranked for 2026

Guide
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