The DBX 1231 Dual Band Graphic EQ. High quality, respected and designed for the most demanding applications. The DBX 1231 was 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 45 mm faders; selectable +/-6dB or +/-15dB boost/cut range for precise gain adjustments; XLR, barrier strip, and 1/4 inch TRS connectors for installation ease; balanced inputs and outputs for quiet operation; and chassis/signal ground lift capabilities for quick hum isolation. The visionary design of the dbx 12 Series makes your job easier. Features : * Switchable boost/cut ranges of 6 or 15 dB * Electronically balanced/unbalanced inputs * Servo balanced/unbalanced outputs * RF filtered inputs and outputs * XLR, Barrier Strip, and 1/4 inch TRS connectors * -12dB/+12dB input gain range * 18dB/octave 40Hz Bessel low-cut filter * Chassis/signal ground lift capability * Internal power supply transformer * Power-off hardwire relay bypass with 2-second power-up delay
The sliders of the 1231 are 45mm center detent, with two selectable boost/cut ranges for precise gain adjustments. The unit features high pass filters with bypass, active balanced input and output connections, chassis/signal ground lift capabilities for quick hum isolation and an internal power supply. Multiple input and output configurations are provided for ease of use. The XLR and 1/4" TRS connectors use active balanced, low noise circuitry, with the addition of barrier strips.
The 1231 was precision engineered to provide years of maintenance-free operation in any application. The magnetically isolated transformer, RF-filtered inputs and outputs, and power-off hard-wire relay bypass with two second power up delay, ensures compatibility with all types of installations.