INTRODUCTION
Congratulations for your purchase of a dbx equalization component. The dbx Graphic Equalizers are
high performance multifunctional units designed to deliver all the flexibility and power that professional
users demand. We recommend you take a moment to read through this Operation Manual. It provides
information that will assist you from system set-up to EQ applications. The 30 Series features include:
❍ 31 ISO standard center 1/3 octave constant Q frequency bands per channel (or 15 ISO standard
center 2/3 octave constant Q frequency bands per channel on model 3215)
❍ Low phase shift circuit design
❍ Variable high pass and switchable low pass 12dB/octave filters
❍ Electronically balanced inputs with superior common mode rejection
❍ Servo balanced outputs
❍ XLR, barrier strip, and TRS connectors
❍ -12dB/+15dB of input gain
❍ Chassis ground lift capability
❍ Toroidal power supply transformer
❍ Relay bypass on power-down
QUICK SET-UP
To get the equalizer up and running as quickly as possible, do the following:
❍ Unpack and inspect the equalizer and contents (pg. 3).
❍ Connect the equalizer to the system (pg. 6).
❍ Set levels and controls as needed (pg. 4).
For more detailed information about these steps, refer to the specified pages.