Check the listing for details. Universal Audio Apollo e2m Stereo Headphone Amp and Line Interface. Condition: New. Listed at 499.00 USD. The Ultimate Monitor Station for Apollo x16D The Universal Audio Apollo e2m is a versatile monitor station designed for the Apollo x16D audio interface, featuring seamless Dante network connectivity. It houses a high-quality stereo headphone amplifier and a 2-in/2-out line interface. The headphone amp offers parallel 1/4-inch and 1/8-inch outputs with a shared analog volume control, ensuring flexibility for various headphone types. The line inputs flaunt premium A/D conversion, allowing you to easily integrate keyboards, synths, amp emulations, and other sound sources into your recording setup. The line outputs are ideal for powered monitors or wedges. Moreover, the Apollo e2m is equipped with dedicated Mute buttons for both the headphone and line outputs.