Home / Authors / Marcus Kim
MK

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

USB DAC for Headphones: Tested Picks (2026)

Article

Find the Perfect Signal Amplifier for Your Setup

Guide

5 Outdoor Bluetooth Speakers for Shoppers: JBL

Guide

Which Onkyo CD Changer Should You Buy?

Guide

Cordless Headphone Tested & Rated: Best Picks 2026

Guide

Home Theater HDMI: Cable & Switching Guide

Article

Conference Headsets That Sound As Good In Meetings As They Look

Guide

Expert Recommended Headsets for Conference Calls

Guide

Which Full Duplex Intercoms Actually Work?

Guide

Cordless Headphones for iPhone: Which Shortlist Wins?

Guide
1 … 19 20 21 22 23 … 25