The Denon DNX300 is a full on scratch mixer with 2 channels and kill switches. Both channels have fader curve control and reverse as well as re-positionable transform switches and 3 way kill switches. The 3 band EQ gives a virtual 'kill' of -40db. There is also a switch to cut the EQ on and off instantly. The effects send and return allows you to connect an external effects unit, assign it to either or both channels and control how much effect you have going through the mixer. The monitoring section allows you to listen to the effects before it goes 'live'. The LED display is switchable to show the output or the input of each channel. Cue section allows the user to choose between split cue or mixing the selected channel with the ouput. Booth output is available for a conrollable secondry system. Fader start is available to trigger the range of Denon CD players using the cross or channel faders. A serious bit of kit from Denon! This serious mixer has been re-packaged by Denon as it was used for trade show display but has a 1 year warranty and is in mint condition!!