215S Dual 15-Band Equaliser Silver 2/3 Octave Jack/XLR 1UWhen the pros need an EQ, they turn to dbx. With a proven track record that spans four decades, dbx EQs are the industry standard for touring, studios, and audio installations. With the dbx heritage of revered pro EQs, the 215s meets the needs of the most demanding sound reinforcement environments, while offering the simplicity of straightforward controls. The dbx 215s includes two 15 band channels of 2 3 octave equalization, 12 dB input gain,