Headphone Reviews

To most people, the only apparent differences among in-ear monitors (IEMs) are the logos on the sides. But there are two very different technologies used in IEMs.

Bluetooth's been a boon for headphones, 'cause lots of people love headphones but nobody loves cables. It hasn't taken off in the in-ear monitor market, though, 'cause almost all Bluetooth IEMs have a clunky module that holds the Bluetooth electronics and the amplifier-and nobody loves clunky modules.

Kicker - there's a name that probably doesn't come to mind when you think headphones, but this being 2012, wouldn't you know that they'd be in the personal audio biz now too.

To most people, a high-end in-ear monitor costing hundreds of dollars doesn’t look much different from the $10 IEMs you buy at Walgreens. But usually, the difference is huge. Perfect example: the $199 Klipsch Image X7i.

We’ve learned one thing from our past investigations into the new wave of headphones made by speaker companies: Headphone engineering has little in common with speaker engineering. Because the physics of headphones are so different from the physics of speakers — and because few, if any, speaker companies actually build their own headphones — it’s rare for a company’s headphones to mirror the sonic character of its speakers.

Tougher still for MartinLogan, which built its brand on 5-foot-tall electrostatic speakers.

"So this is a tuner headphone," our frequent West Coast listening panelist Will Huff commented when I showed him the Mad Dog Alpha. "Like tuner cars?" he suggested when he saw my quizzical look. "Like in Fast and Furious?" he asked when I gave him a shrug. Ah, finally I got it.