PIONEER DDJ-SR2 Controller Serato Working Condition

Rare Pioneer DDJ-SR2
DJ controller still very popular in the DJ industry
Better sound than the SR1 and can be connected via XLR cable
Its compact size makes it easy to carry

I confirmed its operation by connecting it to a PC, but the meters for both FX did not rise even when the knobs were turned up, so I had to raise the meters on the PC side.
However, most DJs do not use the FX function, so I don't think this will be an issue.
The knob for the 3-channel FX fader is coming off (13th image).
Includes AC adapter and USB cable
Price negotiable, no returns