DBX iEQ31 User Guide

8760 S. Sandy Pkwy.

Sandy, Utah 84070

Phone (801) 568-7660

Fax (801) 568-7662

Int’l Fax (801) 568-7583

customer@dbxpro.com

http://www.dbxpro.com

A Harman International Company

18-0295 -A 3/03

iEQ 31

Dual 31-Band Digital Graphic Equalizer/Limiter with TYPE V™ NR and AFS™

With an EQ heritage that has produced countless industry-standard patents and dates back more than 30 years, the dbx iEQ-31 easily lives up to the dbx®legacy of uncompromised sonic integrity. In addition to unsurpassed equalization specs, the iEQ-31 also offers the built-in necessities which include AFS™ feedback Suppression, Type V™ noise reduction and PeakStopPlus®limiting. Besides including two 31-band channels of 1/3-octave equalization, the iEQ-31 also offers +12 dB input gain range; switchable +6 or +15 dB 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. As always, the inevitable result of our meticulous attention to detail and top-quality componentry is exceptional sound, performance, and reliability.

The iEQ series represents a major step forward in the performance of graphic equalizers. The iEQ series is now able to offer state-of-the-art digital EQ performance and specs with an analog look and feel. From its amazing 10Hz to 22kHz frequency response, to its 113dB dynamic range and Advanced Feedback Suppression (AFS™), dbx proprietary Type V™ noise reduction and PeakStopPlus®limiting, the iEQ-31 offers out of this world specifications with a down-to-earth price point. Sure to find a home in the studio, on tour and with installed sound venues, the iEQ-31 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-31 offers the maximum sonic flexibility in a straight forward interface and rock-solid construction. For more information please visit us at: www.dbxpro.com.

• Advanced Feedback Suppression (AFS™)

• Type V™ Noise Reduction

• PeakStopPlus

Limiting

• 1/3-octave Constant Q frequency bands

• Switchable boost/cut ranges of ±6 or ±15 dB

• 18 dB per octave 40Hz lowcut filter

• ±12 dB input gain range

• XLR, TRS and Euroblock

Inputs and Outputs

• Internal Toroidal Transformer

• Dynamic range of greater than 113dB

• User Power Up Features

• Relay Bypass for Power Failure System Protection

Inputs

Connectors: 1/4” TRS, female XLR (pin 2 hot), and Euroblock Type: Electronically balanced/unbalanced, RF filtered Impedance: Balanced 40kΩ, unbalanced 20kΩ Max Input Level: +22dBu balanced or unbalanced CMRR: >40dB, typically >55dB at 1kHz

Outputs

Connectors: 1/4” TRS, male XLR (pin 2 hot), and Euroblock Type: Balanced/unbalanced, RF filtered Impedance: Balanced 120Ω, unbalanced 60Ω Max Output Level: +20dBu balanced/unbalanced into 2kΩor greater

System Performance

Frequency Response: 20Hz to 20kHz, +0.5/-0.25dB Dynamic Range: >113dB, “A” weighted THD+Noise: 0.003% typical at +4dBu, 1kHz Interchannel Crosstalk: <-80dB, 20Hz to 20kHz Noise Reduction: Up to 10dB of dynamic broadband noise reduction Digital Resolution: 24 bits Sample Frequency: 48kHz Latency: 2msec

Function Switches

AFS™: Activates dbx AFS™ Advanced Feedback Suppression TYPE V™ NR: Activates dbx Type V™ Noise Reduction EQ Bypass: Bypasses the graphic equalizer section in the signal path Low Cut: Activates the 40Hz 18dB/octave Bessel high-pass filter Range

Range: 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 Gain Reduction: 4-LED bar graph (all Red) at 0, 3, 6, and 10dB Type V™ NR: 1 LED: yellow, green or red EQ Bypass: 1 LED: red Clip: 1 LED: red Low Cut: 1 LED: red +/-15dB: 1 LED: red

Power Supply

Operating Voltage: 120VAC 60Hz, 220-240VAC 50/60Hz Power Consumption: 17 Watts Mains Connection: IEC receptacle

Physical

Dimensions: 5.25” H X 19” W X 7.9” D (13.4cm x 48.3cm x 20.1cm) Weight: 9.25 lbs. Shipping Weight: 10.25 lbs.

iEQ 31

Dual 31-Band Digital Graphic Equalizer/Limiter with TYPE V™ NR and AFS™

™

dbx engineers are constantly working to improve the quality of our prod-

ucts. Specifications are, therefore subject to change without notice.

FOR MORE INFORMATION CONTACT:

dbx Professional Products