You can load tracks from your laptop, add loops and hit cues, all from the mixer's control panel. This software also allows you to record your mix, or record two analog sources. 24-bit internal effects are also part of the Serato Scratch Live software, and are accessible from the control panel. The updates for Serato Scratch Live software are free, so that you can always improve your features. Besides this software, the fact that the TTM 57SL can use XLR connectors, and the fact that the TTM 57SL has eight inputs in total (compared to the TTM 56S' four), the TTM 57SL has many of the same specs as the lower cost TTM 56S. Both mixers have independent Reverse and Contour switches for each fader (1 crossfader, 2 channel faders); both mixers have a universal internal power supply, which means that they can plug in anywhere there is a 100-230 VAC outlet, with no adapter; both mixers have 3-band tone control and Kill switches to cut out frequencies on a dime.