Works fine, plenty loud, used them for several years in my garage.
Mfg. February 1988.
11" wide x 8 3/4" deep including grill x 27" tall
Dust and scratches, no extra charge.
Grill does not come off, so I could not take a photo of the inside.
To access the speakers you take the rear panel off, it is screwed on.
These are not U.S. Pioneer, just Pioneer. U.S. Pioneer died circa 1983.
$15 if you pickup in Surfside Beach.
Item in photos is yardstick for size perception.