Sennheiser

THERE WERE countless headphone exhibitors at CES 2012: familiar names showing incremental upgrades to longstanding models, Chinese OEMs showcasing suspiciously familiar designs under house brands, upstart firms testing the waters with hybrid driver designs and innovative fit systems, automotive and furniture firms muscling their way into the latest hot retail category.

WHEN I FIRST SAW the Sennheiser HD598’s beige-and-brown color scheme, woodgrain accents, and air-cushioned headband, images of all sorts of 1970s products fl ooded through my head: Kustom guitar amps with “tuck and roll” covering, lacquered driftwood furniture, waterbeds, Roger Dean posters.

Mention noise-cancelling headphones and most people think of large, over-ear models like the Bose QC15. Comfy as those big cans can be, they’re waaaay too big to slip into a pocket or purse. But not all noise-cancelling headphones come in cases sized like jumbo donuts at the State Fair. In fact, a few manufacturers have added noise-cancelling technology to their in-ear monitors (IEMs), using a little “lump in the line” to house the needed electronics.

One might fairly ask, though: Do IEMs really need noise cancelling? After all, when used with tips that fit your ears properly, IEMs completely seal off your ear canals. However, IEMs do most of their noise-blocking at frequencies above 1 kHz. Below that, they’re not so effective at keeping the noise out.