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Marcus Kim

Senior Audio & Headphones Editor ยท 9 years reviewing ยท 119 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

Vizio M-Series Elevate Review (2026), Still the Best Atmos

Review
โ˜… 4.2

Ultimate Ears MEGABOOM 4 Review (2026): The Outdoor Speaker

Review
โ˜… 4.6

Soundcore Liberty 4 NC Review (2026)

Review
โ˜… 4.5

Sony WH-1000XM5 Review (2026), Still the

Review
โ˜… 4.8

Sony WF-1000XM5 Review (2026): 6 Months of research, Still the

Review
โ˜… 4.6

Sony SRS-XV900 Review (2026): The Loudest Party Speaker Worth

Review
โ˜… 4.4

Sony SRS-XG500 Review (2026): The Last Real Party Speaker

Review
โ˜… 4.5

Sony SRS-XB13 Compact Bluetooth Speaker Review (2026): Eight

Review
โ˜… 4.4

SVS PB-1000 Pro Review (2026): The Best Subwoofer

Review
โ˜… 4.7

Sonos Roam 2 Review (2026): The Hybrid Wi-Fi Speaker That

Review
โ˜… 4.4
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