Toshiba RT-9000S
This RT-9000 was also called the "BomBeat D1". It has detachable speakers than can swivel to the side or stack on top of the main unit. It uses a Toshiba TA7229AP amplifier. I believe this boombox was only sold in Japan, because it has Japanese labels and its FM tuner only goes from 76 to 90 MHz. It appears to be an upgraded version of the RT-8700, with two VU meters instead of only one.