Designed for the most demanding applications.

Precision engineered to provide years of maintenance-free operation, the DBX 1231 Graphic Equalizer provides such standard features as dual channels of 31 - 1/3-octave bands, ISO frequency centers, +/-12dB of input gain range, and switchable 40Hz/18dB per octave low-cut filters. Other features on the 1231 Equalizer include 45mm faders, selectable +/-6dB or +/-15dB boost/cut range, XLR, barrier strip, and 1/4" TRS connectors, balanced inputs and outputs, and chassis/signal ground lift for quick hum isolation.

dbx 1231 Dual 31-Band Graphic Equalizer Features:

• Switchable boost/cut range
• Electronically balanced/unbalanced inputs
• Servo balanced/unbalanced outputs
• XLR, barrier strip, and 1/4" TRS connectors
• -12dB to +12dB 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

It's the good one. If you're wearing your old EQ out, replace it with the dbx 1231.