The file includes a large stage model for festivals and concert events. The coatings were made with corona rendering. No external textures were used. You can use the eyedropper tool to change model colors. Stage model includes l-accoustics line array and sub bass sound system model. There is also a Martin Viper model as a corona proxy. However, if you set the sound system and barriers as proxies, your polygon count will decrease significantly. As an extra, I offer you printouts in different formats;
stl, 3ds, fbx, max and obj