Size: 30x36x72 cm.

Pivot on the floor, system units - centimeters. 

The speakers and mesh on the speakers are separate objects with different materials.

On objects one texture-set with non-overlapped UV and universal metallic PBR material (suitable for any modern render engine),

4K PNG textures: BaseColor, Roughness, Metallic, Normal, Opacity.

*when importing from FBX, make sure that input gamma=1.0 (linear/non-color) for all textures except base_color.