Pioneer Channel Trim Knob for DJM 800/900 Go to amazon.com Related posts How to buy the best djm 900? FeaturePioneer Channel Trim Knob for DJM 800/900Channel Trim Knob for DJM 800/900Pioneer Channel Trim Knob DJM 800/900Pioneer DJM 800/900Pioneer Channel Trim Knob DescriptionReplacement knob for: DJM 800: CH 1 - 4 Trim DJM 900NXS: CH 1 - 4 Trim