Germany's Ultrasone typically scales to the upper echelon headphones. The HFI-2400 headphones are Ultrasoneís flagship consumer model with an official price of $330; while expensive, it's a bargain compared to pro and DJ products that retail for twice as much. No matter the model, Ultrasoneís claim to fame is its S-Logic natural surround sound, which it equates in video parlance to the difference between watching a movie in 2D versus 3D. It all sounds very impressive -- pun intended -- but we'll find out how well it works in our review.
