M-Audio is now shipping its new IE-40 ($499.95) high-definition professional reference earphones.

The IE-40 professional earphones feature armature drivers that deliver extended high frequencies, clear mid-tones and natural bass. According to the manufacturer, they are significantly smaller and more accurate than comparable dynamic drivers. The IE-40 reference earphones'' audio crossover network routes each frequency to the appropriate high, mid, or low driver. The IE-40s also incorporate Ultimate Ears'' proprietary dual-bore design to deliver a wider soundstage through separate acoustic canals for high and low channels—thus allowing the sound to mix naturally in the ear itself. In addition, the IE-40 earphones provide 26 dB of sound isolation.

For more information, visit www.m-audio.com.