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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

Squier Affinity Jazz Bass Review (2026)

Review
โ˜… 4.4

Yamaha YDP-145 Arius Review (2026)

Review
โ˜… 4.6

PRS SE Custom 24 Review (2026)

Review
โ˜… 4.7

Seagull S6 Original Review (2026)

Review
โ˜… 4.7

Casio Privia PX-S1100 Review (2026)

Review
โ˜… 4.5

Arturia KeyLab Essential mk3 49 Review (2026)

Review
โ˜… 4.7

Audio-Technica AT2020 Review (2026)

Review
โ˜… 4.4

Universal Audio Volt 2 Review (2026)

Review
โ˜… 4.6

Martin LX1E Little Martin Review (2026): The Travel Acoustic

Review
โ˜… 4.4

Kawai ES120 Review (2026)

Review
โ˜… 4.7
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