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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

Use These Audioquest Banana Plugs for Better

Guide
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AM FM Radio Receptions Compared: Sony Leads the Shortlist

Guide

5 Am Fm Clock Radios Worth Buying in 2026

Guide

5 Competition Car Audio Amplifiers for SPL & SQ

Guide

Expert Picks: The Harmonicas Pros Actually Play

Guide

Which Denon 5.1 Receiver Is Right for You?

Guide

Intercom Systems for Home and Business

Guide

Experts Agree: Sonos Arc Leads the Best Home Stereo Systems

Guide

The Best Turntable With CD Player for Hybrid Listening

Guide

Acoustic Guitar Amplifiers with Bluetooth

Guide
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