Universal Audio Apollo Twin X Duo Heritage Ed., 10x6 Thunderbolt 3 Audio Interface, Heritage Edition, With UAD-2 Quad-core processor for virtually latency-free recordings via plug-in emulations of classic compressors, EQs, tape recorders, microphone preamplifiers, and guitar amplifiers, 24 bit / 192 kHz AD/DA converter, 2 Unison microphone preamplifiers, +48 V Phantom power, Integrated talkback microphone, Dynamic range: 127 dB, Monitor functions with controls for Mono, Mute, DIM, and ALT, Design: Desktop, For Mac OS and Windows, Includes software bundles Desktop Heritage Edition & Realtime Analog Classics Plus@+*Technical Specifications:*@+@+, 2 Microphone/Line combo inputs: XLR / 6.3 mm jack, Hi-Z instrument input: 6.3 mm jack, 2 Line outputs: 6.3 mm jack, 2 Monitor outputs: 6.3 mm jack, ADAT/SPDIF optical input, Stereo headphone output: 6.3 mm jack, Thunderbolt 3 connector (thunderbolt cable not included), Input for external power supply