Discerning audiophiles and audio engineers in search of a flexible AD/DA will be impressed with the RME ADI-2/4 Pro SE 2-AD/4-DA, a high-performance converter that supports up to 32-bit / 768 kHz conversion with a signal-to-noise ratio of 123 dBA. The interface utilizes reference-quality components throughout with a powerful DSP that adds a ton of useful audio processing, including a 5-band EQ, fast bass/treble adjustment, and Crossfeed—a new concept in loudness sound control. For analog I/O, the rear panel offers a pair of combo XLR-1/4" inputs and a pair of XLR outputs as well as a pair of 1/4" outputs. The front panel includes two stereo Extreme Power headphone outputs for easy balanced operation of all headphones, including IEMs via Pentaconn connector. For digital connections, the ADI-2/4 Pro SE includes a pair of optical SPDIF I/O, which also understands ADAT, as well as coaxial SPDIF (RCA) and AES I/O (XLR) via an included breakout cable. A wireless remote control, a 9-pin D-sub to dual XLR and dual RCA breakout cable, and a 40W power supply are also included. It comes with a K240 Studio headphones from AKG feature a semi-open circumaural design and use patented Varimotion technology and extra-large transducers to deliver extremely precise and detailed sound and extra XLR-XLR cable. Box Contains RME ADI-2/4 Pro SE 2-AD/4-DA 768 kHz, High-Performance Converter (Black Edition) 1x External Power Supply 1x Power Cord 1x Digital Breakout Cable AES / S/PDIF (BO968) 1x Remote Control AKG K240 Studio Professional Semi-Open Stereo Headphones 1x Gold-Plated 1/4" Adapter 1x Detachable Cable