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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

Experts Recommend These Voice Amplifiers for Every Setting

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Best Vintage Record Players: 5 Models That Deliver

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Fender Strat Pickups Our Luthier Picks for 2026

Guide

What’s the Best Device for Cricket Podcasts?

Guide

Which Shower Radio Survives Steam and Splashes?

Guide

Cordless Earbuds That Deliver Real Value

Guide

The Right Connection For Samsung Soundbar

Guide

Bose CD Radio Players Worth Your Money

Guide

How to Choose Component Car Speakers: Buying Guide

Guide

How to Choose the Best Atmos Receiver

Guide
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