The ADI-2/4 Pro SE (Special Edition) is the addition to the award-winning ADI-2 series and features a new circuit board, improved specifications, and faster DSP for an exceptionally transparent sound signature. It offers an extremely powerful headphone amplifier with a balanced 4.4 mm Pentaconn connector and a trigger-out function for turning external devices on and off. Building on the long-standing development of the ADI-2 Pro, RME presents the latest addition to the highly acclaimed ADI-2 series. This latest masterpiece comes with a new circuit board, enhanced specifications, and faster DSP for an outstandingly transparent sound signature. It provides extremely powerful headphone amplifiers, including an IEM power setting, an ultra-low-noise 4.4 mm Pentaconn balanced connection, a trigger-out function for controlling external devices, and finally, an RIAA mode for directly digitizing vinyl records in the highest quality.