Universal Audio Apollo 8 Duo, 18 x 24 Thunderbolt 2 Audiointerface, 24-bit/192 kHz with build-in UAD Realtime-Processing, 4 Unison Microphone Preamps, analogue Inputs: 4x Mic-/Line-In XLR/TRS ¼" Combo Input balanced, 4x Line-In ¼" TRS balanced, 2x DI, analogue Outputs: 8x Line-Out balanced, 2x Monitor, 2x Headphone, Digitale I/O´s: 2x ADAT I/O, S/PDIF, Wordclock, Monitor Functions (Alt Speakers, Dim and Mono), up to four Apollo Interfaces and up to six UAD Units in total cascadable via Thunderbolt (Mac), UAD Duo Core Realtime-Processing, incl. Realtime Analog Classics Plus Bundle: UA 610-B Tube Preamp and EQ, Softube Amp Room Essentials, Fairchild 670 (Legacy), UA Precision Enhancer Hz, 1176SE/LN Classic Limiting Amplifiers (Legacy), Pultec Pro Equalizers (Legacy), Teletronix LA-2A Classic Leveling Amplifier (Legacy), CS-1 Precision Channel,RealVerb Pro.