Made in blender 2.82, Cycles renderer used.
This acoustic system IRL was manufactured by the company Vega (USSR) in 80's. Originally, it have no geometry difference between left and right channel speakers, so model have one speaker object and some different textures(noted below).
Model have real world scale.
Model prepared to subdivide.
Original .blend file contains 2 linked(exclude materials) objects and vertex group for bolts.
Texture files format - png. All textures have resolution 4096x4096 and includes next types:
No additional plug-ins are needed. HDRi included.
If you have any questions, feel free to message me.