the t.mix Rackmix 821 FX USB, 8 Channel Rack Mixer, With built-in USB audio player and multi-effects device, 3 Band tone control, +48 V phantom power and panorama on each channel, 2 AUX ways: 1 x FX, 1 x AUX, Main out possible with unbalanced XLR or unbalanced jack, Record out via RCA, AUX send and return via 6.3 mm jack sockets, XLR mic, jack line and insert on each input channel, Headphone output with 6.3 mm jack, Dimensions: 485 x 140 x 175 mm, Format: 19