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dbx iEQ15 Graphic Equaliser Front Panel

With an EQ heritage that has produced countless industry standard patents and dates back more than 30 years, the dbx iEQ series easily lives up to the dbx legacy of uncompromised sonic integrity. As always, the inevitable result of dbx Professional's meticulous attention to detail and use of top quality componentry, is exceptional sound, performance, and reliability. The iEQ series represents a major step forward in the performance of EQs. The iEQ series is now able to offer state-of-the-art digital EQ performance and specs with an analog look and feel. Sure to find a home in the studio, on tour and with installed sound venues, the iEQ series is destined to take its rightful place in the lineage of great dbx® signal processors that are the professional’s choice in signal processing. With such pristine design and quality, the iEQ series offers the maximum sonic flexibility in a straight forward interface with rock-solid construction.

In addition to unsurpassed equalization specs, the iEQ-15 also offers the built-in necessities which include AFS™ feedback Suppression, Type V™ noise reduction and PeakStopPlus® limiting. Besides including two 15-band channels of 2/3-octave equalization, the iEQ-15 also offers +12dB input gain range; switchable +6dB or +15dB boost/cut range, 40mm faders, XLR, 1/4'' and Euroblock inputs and outputs, nonconductive nylon sliders; and an intuitive user interface with comprehensive output and gain reduction metering. The iEQ-15 offers out of this world specifications at an affordable price.


  • Dual Channel.
  • Advanced Feedback Suppression (AFS™).
  • Type V™ Noise Reduction.
  • PeakStopPlus™ Limiting.
  • Electronically balanced inputs via XLR, Euroblock, and TRS connectors.
  • RF-filtered inputs and outputs.
  • 40 mm stroke faders with centre detent.
  • 15 2/3 octave Constant Q frequency bands per channel on ISO frequency centres.
  • 18 dB per octave 40 Hz Bessel low-cut filter with switch.
  • Selectable +/-6 dB or +/-15 dB boost/cut range for precise gain adjustment.
  • Equaliser bypass switch to bypass the graphic equalizer section in the signal path.
  • Noise Reduction switch activates dbx Type V™ Noise Reduction.
  • Output level indicator - four segment LED bar graph (Green, Green, Yellow, Red) at -10, 0, +10, and +18 dBu.
  • Gain Reduction indicator - four segment LED bar graph (all red) at 0, 3, 6, and 10 dBu.
  • LED indicators for Type V™ NR Active, EQ Bypass, Clip, Low Cut Active, +/-15 dB.
  • Relay bypass for power failure system protection.
  • 2U rack mounting steel/aluminium chassis.
  • Internal toroidal power supply transformer.

Rear Panel Layout

dbx iEQ15 Graphic Equaliser Rear Panel

Technical Specifications

Frequency Response 20 Hz to 20 kHz, +0.5/-0.25 dB
T.H.D. + Noise 0.003 % typical at +4 dBu, 1 kHz
Interchannel Crosstalk < -80 dB, 20 Hz to 20 kHz
CMRR > 40 dB, typically > 55 dB at 1 kHz
Input Level Max +22 dBu balanced or unbalanced
Input Impedance Balanced 40 k ohms, unbalanced 20 k ohms
Input Connectors1/4" TRS, female XLR (pin 2 hot), and Euroblock
Input TypeElectronically balanced/unbalanced, RF filtered
Output Level Max +22 dBu into 2 k ohms or greater, balanced/unbalanced
Output Impedance Balanced 120 ohms, unbalanced 60 ohms
Output Connectors1/4" TRS, female XLR (pin 2 hot), and Euroblock
Output TypeBalanced/unbalanced, RF filtered
Dynamic Range113 dB, A weighted
Noise ReductionUp to 10 dB of dynamic broadband noise reduction
Digital Resolution24 bits
Sample Frequency48 kHz
Latency2 milliseconds
Power Supply RequiredAC Mains 120 VAC 60 Hz, 220-240 VAC 50-60 Hz
Power Consumption 17W
ConstructionSteel and aluminium panels, Black enamel finish


Width ..... 483 mm
Depth ..... 201 mm
Height ..... 89 mm
Weight .... 3.4 Kg
dbx iEQ Series Graphic EQ Dimensions

Ordering Information

DescriptionOrder Code
dbx iEQ15 Graphic EqualiserDBX-IEQ15
The information presented on this page is provided by courtesy of dbx Professional Products.
Revised: 21-Dec-2010 Copyright (C) 2010 Adena Limited