Basic generic speakers created by looking at few reference images so you can use it only for editorial purposes. The model uses an HDRI image from hdrmaps.com (free 016 from sibl1 collection) and some compositing effectsNote: all images can be rendered just like the high quality preview and most of the other few images. The remaining un-realistic images towards the endcan be used to analyze the model. Those were rendered a long time back but only texturing and lighting has been changed since then which is updated in the blend file which you will get.