I’ve been writing regularly about headphones since the start of the headphone boom, back in the late ’00s. In those early days, good-sounding headphones were hard to come by. Sure, there were several great headphones available then—but as I learned when putting together headphone shootouts for Sound & Vision magazine, there were a lot more bad ones. That’s not so much the case today, thanks in part to the famous research behind the Harman curve. But what I consider the key finding in the Harman curve still often goes ignored—as I discovered last month in my review of the V-Moda Crossfade 2 Wireless Rolling Stones Tattoo You and some tests I recently conducted on the KRK KNS 8400 headphones.
I’ve been writing audio product reviews for 30-plus years, and reading them for about 45 years, and there’s one question none of them have ever addressed—but that I, and many of my readers over the years, have often wondered about. Sure, the most dedicated reviewers can do thorough, informed evaluations of a product. But how do they know that what they heard is representative of what a reader buying that product will hear? We almost always get just one product sample—maybe, in unusual cases, two. But from Julian Hirsch to the 18-year-old reviewer who just started his own TikTok channel last week, we all assume—or perhaps more accurately, hope—that the sample we tested is representative of the ones our readers buy in a store or online.
Through the last 44 years, David Chesky has revolutionized audiophile recording at least three times—once with his super-ambient stereo recordings, once with his unique approach to surround sound, and once with his Binaural+ technique targeted mostly at headphone users. Now he’s at it again with a whole new concept that owes nothing to his past work: Meta-Dimensional Sound, which delivers a recording in two different versions: one optimized for headphones, the other for speakers.
The debate about the usefulness of lab measurements in predicting listener preference rages nowhere more furiously than in my own mind. (Why do I suspect that lede just lost me half my readers?) I’m one of the small number of headphone reviewers who has lab-grade measurement gear, and the similarly small number who belong to the Audio Engineering Society and regularly follow the scientific research on the topic. But I’m also one of the few reviewers who routinely seeks out the opinions of others, and who values their opinions as much as my own. You could say I get it from both sides—and that’s why I’ve come to believe that neither side has all the answers.
Some stories spring from surprising origins. About a decade ago, I was riding in the back of the car with my family on Interstate 10 from Houston to New Orleans—a journey that would intrigue only those with a fetish for swamps or oil refineries. Tired of whatever my dad was listening to on the radio, but having forgotten to bring headphones with me, I grabbed a $10 set of off-brand earphones at a truck stop near St. Charles, Louisiana.
The Harman curve—the well-known, science-based “target curve” for headphone and earphone frequency response—has been with us for almost a decade. Yet it seems more controversial than ever, and a group of audio enthusiasts who could be called “Harman curve haters” has emerged. I knew this phenomenon existed on some level, but I started to realize how prevalent it has become only after I recently reviewed the Apos Audio Caspian headphones. The Caspians were voiced by a reviewer/consultant named Sandu Vitalie, who describes the Harman curve as sounding “soulless and boring.”