Aimor ST-809
The Aimor ST-809SL is one of the biggest, baddest, and rarest 1-piece boomboxes. It measures 700 х 370 х 192 mm, and it weighs 9.8 KG. It looks almost like a Sanyo M-X920, but it's actually much bigger (45mm longer and 50mm taller), and it has bigger woofers (20cm instead of 18cm). It's louder too, with more bass. But the Sanyo is higher quality, and sounds cleaner.
There's another version of this ghettoblaster called the Aimor ST-808, with bass and treble knobs instead of a graphic equalizer.