The SL 824 mixer is a studio/live mixing console with built-in full duplex USB interfacing. A high quality class-compliant 2-input 2-output 16-bit/48kHz USB interface features on all models, with a flexible record bus and dedicated return channel that is great for live and home recording. Studio grade microphone preamps are used throughout and have balanced XLR inputs, with all channels also offering balanced/unbalanced TRS line level connectivity. In addition all of the mono channels have a TRS insert point. An ultra musical 3-band EQ is available on all channels, with an additional high pass filter on the mono channels. A built in FX processor with 16 presets gives you unlimited creative potential and is supplemented by a dedicated FX send and auxiliaries.