Ultrasone PRO 900 Headphones

S-Logic is Ultrasone’s proprietary technology that positions the drivers off-center to reflect sound off the outer ear rather than firing directly into the ear canal. This creates a more natural, three-dimensional soundstage that mimics the experience of listening to speakers in a room.

Yes, the PRO 900s are designed for comfort during extended use. They feature plush velour earpads and a lightweight design, making them well-suited for long mixing or monitoring sessions.

With an impedance of 40 ohms and a sensitivity of 96dB, these headphones can be driven by most standard audio interfaces, laptops, and mobile devices. However, a dedicated headphone amplifier can help extract the best possible transient response and clarity from the titanium-plated drivers.

The sealed, over-ear design provides approximately 15dB of passive noise isolation. While this is effective for blocking out ambient office or studio noise, it is not active noise cancellation and will not fully silence loud environments like airplane engines.

ULE (Ultra-Low Emission) shielding is designed to reduce the electromagnetic radiation emitted by the headphone drivers. It is a specialized feature intended for professional users who spend many hours a day with headphones on and are concerned about long-term exposure to electromagnetic fields.

Yes, the PRO 900s feature detachable cables. The package includes both a 3-meter straight cable and a 4-meter coiled cable, allowing you to easily swap them out or replace them if necessary.