I needed a clean EQ ...PERIOD!!! The dbx 1231 gave me exactly what I needed for my studio. The controls are straightforward and I love the way the 31 1/3 bands are laid out. Huge advantages are the ISO frequency centers, +/- 12 db input gain, and switchable low-cut filters. To take it over the top is the ground lift for quick hum isolation. Itís worth spending the extra money to get the quality you need from an EQ without the extra noise.