dbx 1215 Dual 15-Band Graphic Equalizer

The 1215 provides standard features like dual channels, 15 2/3 octave bands, ISO frequency centers, +/-12 dB input gain range, and switchable 40Hz/18 dB per octave low-cut filters, but also includes other thoughtful features.

The dbx 12 Series were designed to meet the needs of the most demanding sound reinforcement environments, while offering the simplicity of straightforward controls. These include 45 mm faders; selectable +/-6dB or +/-15dB boost/cut range for precise gain adjustments; XLR, barrier strip, and 1/4'' 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.

The dbx 12 Series Equalizers were precision engineered to provide years of maintenance-free operation in any application. The magnetically isolated transformer, electronically balanced/unbalanced inputs and servo balanced/unbalanced outputs, RF-filtered inputs and outputs, and power-off hard-wire relay bypass with 2 second power up delay were steps our engineers took to ensure compatibility for all installations. Only the best components were utilized, yielding a 10Hz to 50kHz frequency response, greater than 90dB SNR (ref +4dBu), less than 0.005% THD +Noise (1kHz at +4dBu), and interchannel crosstalk of less than -80dB from 20Hz to 20kHz. All this attention to detail is contained in a 2U steel/aluminum chassis.

dbx 1215 Features

• Switchable boost/cut ranges of ±6 or ±15 dB
• Electronically balanced/unbalanced inputs
• Servo balanced/unbalanced inputs
• RF filtered inputs and outputs
• XLR, Barrier Strip, and 1/4" TRS connectors
• -12dB/+12dB input gain range
• 18dB/octave 40Hz Bessel low-cut filter
• Chassis/signal ground lift capability
• Internal power supply transformer

• 1215 dual 15-band graphic equalizer1
• AC power cord1
• Rack mount screws4
• Washers4

• Inputs
  • Connectors: 1/4" TRS, female XLR (pin 2 hot) and barrier terminal strip
  • Type: electronically balanced/unbalanced, RF filtered
  • Impedance: balanced 40kΩ, unbalanced 20kΩ
  • Max Input Level: > +21 dBu balanced or unbalanced
  • CMRR: >40 dB, typically >55 dB at 1kHz
• Outputs
  • Connectors: 1/4" TRS, male XLR (pin 2 hot), and barrier terminal strip
  • Type: balanced/unbalanced, RF filtered
  • Impedance: balanced 200 Ω, unbalanced 100 Ω
  • Max Output Level
  • >+21 dBu balanced/unbalanced into 2kΩ or greater
  • >+18 dBm balanced/unbalanced (into 600 Ω)
• System Performance
  • Bandwidth: 20Hz to 20,000Hz, +0.5/-1 dB
  • Frequency Response: <10Hz to >50,000Hz, +0.5/-3 dB
  • THD+Noise: <0.005%
  • Interchannel Crosstalk: <-80dB, 20Hz to 20,000Hz
• Function Switches
  • EQ Bypass: bypasses the graphic equalizer section in the signal path
  • Low Cut (recessed): activates the 40Hz 18dB/octave Bessel high-pass filter
  • Range (recessed): selects either +/-6dB or +/-15dB slider boost/cut range
• Indicators
  • Output Level: 4-LED bar graph (Green, Green, Yellow, Red) at -10, 0, +10, and +18dBu
  • EQ Bypass: 1 LED: red
  • Clip: 1 LED: red
  • Low Cut: 1 LED: red
  • +/-6 dB: 1 LED: yellow
  • +/-15 dB: 1 LED: red
• Power Supply
  • Operating Voltage: 100VAC 50/60Hz, 120VAC 60Hz, 230VAC 50/60Hz
  • Power Consumption: 24 W
  • Mains Connection: IEC receptacle
• Dimensions (HxWxD)5.25x19x7.9"
• Weight8.5 pounds