The high output power of the Nitrix™ Series mini systems provides smooth sound at high volumes with deep bass impact. A separate subwoofer provides powerful bass you can feel thanks to its dual 6" drivers. Easily search through MP3 files by title on a CD-R/RW disc using the joystick control. Incorporates two or three amp circuits for each speaker (left and right). With 3-way speakers, the two amp circuits drive the woofer separately from the mid-range and tweeter. By using separate connections between the amps and speakers, the individual speaker units are electronically isolated. Mutual interference is minimized and each speaker can reproduce just the tones it was designed for.