booOOMbox
From Homestar Runner Wiki
The BooOOMbox is the tape deck and radio shared by the Brothers Strong. Strong Bad first listened to his autobiography on it. It was damaged by Strong Bad in sibbie. It was repaired before Strong Sad listened to college radio on it.
It seems to always be set at 1000. This would be an AM station. In radio, 89.3 should be a lot further to the left.
Appearances (and button variations)
Debut: autobiography — the dot on the record button is there, but not red