Apparently, you get a high-efficiency ultra low hertz (3-5hz) rotary subwoofer ... but it uses an immense amount of power to move a giant speaker coil. So what if you put something on a smaller ...

Musicians who like to have a portable speaker that gives them ... t seen in other models is the bass and treble rotary knobs on top of the speaker. It makes adjusting the EQ of the Rockster ...