Professional, 7-channel, ultra-low noise DJ mixer with state-of-the-art phono preamps. 45 mm infinium “contact-free” optical crossfader with adjustable friction for years of use. 5 dual stereo inputs plus 2 mono mic/line channels with ULN mic preamps, Phantom Power, Gain control and Clip LED. Built-in USB interface for recording and playback of any digital music file. Works with your PC or Mac computer—no setup or drivers required. Massive software bundle including Audacity vinyl restoration and recording, Podifier and Golden Ear podcasting software. Ultra-musical 3-band kill EQ (-32 dB) with EQ on/off switch on all stereo channels. Long-wearing 100-mm faders and sealed rotary controls on all input channels. Headphone output with Level and Balance (PFL/Main) controls, switchable split mode and level display. Auto-talkover function with separate Sensitivity, Time and Damping controls. Main Dim, main Boost, Punch and Cut functions for awesome mix options. Subbass Out for separate subwoofer, additional Zone output for second room/area. "Planet Earth" switching power supply for maximum flexibility (100 - 240 V~), noise-free audio, superior transient response plus low power consumption for energy saving. Rack mount brackets included for ultimate flexibility.