Small enclosure from unknown manufacturer. The slit on the side of the front baffle is open with a net attached (not sealed). A speaker terminal is attached to the bottom. The previous owner had a Coral 10cm unit installed (Murakoshi Yoichi)
Accessories: saran net
Main specifications: W316 x H399 x D220 mm 3.3 kg (actual measurement) /main screw pitch 123 mm