This is Pioneer's top-of-the-line 2-channel mixer. It features 50 different effects selectable from the touch panel. From here, a never-before-seen groove will be born again!! The clear, piercing sound is PIONEER! With 50 types of effects and crossfader customization, you can adjust the crossfader to your most comfortable feel and weight. Curve adjustments are also diverse, and CH-1 and CH-2 can be set independently. You can also adjust the attenuation curve of the crossfader and channel fader in 33 steps, allowing for tricky scratch performances! Easy operation is achieved with the touch panel display. The LCD display on the top of the unit displays various information necessary for remixing/DJ play, such as the "Fader Edit Monitor" display, which allows the DJ to check the fader status (curve, reverse, cut lag). The touch panel allows you to select effects with a touch. This is a model still used by professional DJs. The LCD touch panel has good sensitivity. To solve the problem of poor response of the bank buttons, which is common with this model, the bank buttons and TAP button switches have been replaced with new ones, so the response is very good. The sponges around the switches have been remade, although the materials are different. These sponges act as springs. Over time, these sponges deteriorate and crumble. I think that the debris from these sponges gets into the gaps of the switches and causes the buttons to stop working. The panels are in beautiful condition. The faders have also been maintained, so they move smoothly. There is no noise or scratchiness on the knobs. It's not quite like new, but it's close.