GEQ-1231D/GEQ-2231D | 31-Band Graphic Equalizer/Limiter |
Front Panel Controls
1. EQ Cut/Boost Controls
Separate Cut/Boost sliders are provided for each of the 31 1/3-octave frequency bands. Each slider covers a maximum cut/boost range of ±12dB or ±6dB, depending on the position of the Range switch (3).
In the GEQ-1231D, each slider controls the level of both left and right channels. In the GEQ-2231D, two rows of sliders are provided to allow independent control of both channels. If the CH LINK button (7) is active, only the upper row of sliders is active, affecting both channels simultaneously.
For certain applications (e.g., sound reinforcement), a cut-only mode is preferable. Pressing the Cut Only button (4) will activate this mode, effectively doubling the resolution of the slider adjustment. Depending on the position of the Range switch (3), the range in cut-only mode is either 0 to –12dB or 0 to –6db. NOTE that in cut-only mode, all sliders must be in the upper position to achieve flat frequency response. (The corresponding level scale for cut-only mode is indicated in red on the front panel.)
2. Input Gain Control and Input Level Meter
The Input Gain Control allows for optimal gain adjustment and highest sonic quality. Optimal dynamic range is achieved in the 0dB position. Therefore it is
