The XENYX 1204 has 12 inputs and 2 Aux Sends for each channel. Additionally, 2 multi-functional stereo Aux Returns have been incorporated for routing flexibility. The new XENYX Mic Preamp matches the sound quality, transparency, headroom and even the dynamic range of boutique-style, stand-alone mic preamps. The neo-classic "British EQ" brings back the warmth and musicality of those '60s and '70s mega-console desks that made music history. It also comes with a USB/Audio Interface for direct plug & play connectivity to your Windows or Mac computer.