Maximal 9500
The Maximal 9500 is a German clock radio with 2 speakers (one on each side). It has 2 meters which measure VU levels when using the tape player, and signal strength when using the radio. It does not accept batteries, and it does not have a handle, so therefore it cannot be called a boombox. But it's still interesting in its own way.
It measures 370mm wide, 140mm tall, and 185mm deep. Output power is 0.5 watts per channel. Consumption is 14 watts.