German headphone manufacturer Ultrasone has announced a new flagship for their HFI line. An open-back pair titled the 2400 with 40mm gold-plated drivers and all sorts of other bells and whistles. The claim to fame is Ultrasone’s S-Logic technology. I’m sure there’s all sorts of fancy science behind it, but it basically means that the drivers are mounted off-center. This allows the sound to bounce around your head for a bit, instead of being pumped directly into your ears. Supposedly, it give