This is a detailed subwoofer speaker.Advanced materials, no textures.Procedural textures.No trademarks, it can be used for commercial porpuse.The model is divided into parts according to a real structure.All parts are correctly named (english).No need for special plugins.-Electrical terminals-Basket-Cone-Dust cap-Two magnets-Pole piece-Spider-Surround-Seam-Top plate-Voice coil