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Marcus Kim

Senior Audio & Headphones Editor ยท 9 years reviewing ยท 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

Quiet on the Job: Throat Mics for Walkie Talkies

Guide

Conference Call Microphone Speaker for Remote

Guide

Metronomes for Every Budget: Find Your Perfect Beat

Guide
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Conrad Johnson Preamp Tested: Top 5 Tube Preamps

Guide
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How to Set Up a Home Theater Room in 2026?

Article

Expert Picks: Ortofon 2M Red Leads the Pack

Guide

Under Cabinet Clock Radios Worth Your Kitchen Space

Guide

Which Earbuds Survive a 10 Hour Flight?

Guide

HD Radios for Your Car: 5 That Actually Work

Guide

Violins That Make Every Practice Feel Inspired

Guide
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