Ultrasone (http://www.ultrasone.com), distributor for German
headphone manufacturer Ultrasone AG, has announced the HFI-15G, the
smallest headphone in the Ultrasone HFI line. However, it still
features Ultrasone’s patented S-Logic Natural Surround Sound

The HFI-15G (US$109) are open-back, supra-aural headphones. Thanks to
Ultrasone’s S-Logic technology, the new HFI-15G allows the user to
experience a natural surround sound sensation without the use of
digital processing, says Ultrasonic President Paul Taylor.
Additionally, S-Logic technology reduces sound pressure on the ear
drum by up to 40 percent, resulting in a safer listening experience
for the user, he adds.

All of this is made possible by utilizing a decentralized driver
position. S-Logic directs sound to the listener’s outer ear as
opposed to directing sound into the inner ear. The human ear relies
on the outer ear for three-dimensional understanding or defining the
direction and distance where a sound comes from.