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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

Edifier R1700BT Review (2026)

Review
โ˜… 4.2

Pro-Ject Debut Carbon Evo Review (2026): The Best Belt-Drive

Review
โ˜… 4.6

Nothing Ear (2) Review (2026): The Best Looking Earbud Is

Review
โ˜… 4.4

Marshall Stanmore III Review (2026): 11 Months In: The Best

Review
โ˜… 4.3

Bose QuietComfort Earbuds II Review (2026): The Quietest

Review
โ˜… 4.5

Bose SoundLink Flex (Gen 2) Review (2026): The Compact

Review
โ˜… 4.5

Bose Smart Soundbar 900 Review (2026), Still the Best Compact

Review
โ˜… 4.4

Bose QuietComfort Ultra Review (2026): Premium Comfort

Review
โ˜… 4.7

Beats Studio Buds Plus Review (2026): The Best Earbuds iPhone

Review
โ˜… 4.4

Audioengine HD6 Review (2026): The Most Honest Active Speaker

Review
โ˜… 4.4
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