1231, 2x 31-bands grafisk equalizerSom DBX 1215 men med 2 kanaler med 31 band vardera. The dbx 12 Series were designed to meet the needs of the most demanding sound reinforcement environments, while offering the simplicity of straightforward controls. The 1231 provides standard features like dual channels, 31 1 3 octave bands, ISO frequency centers, + 12 dB input gain range, and switchable 40Hz 18 dB per octave low cut filters, but also includes other insightful features. These include