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dbx Pro iEQ-31 manual

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Table of contents for the manual

  • Page 1

    User Manual Dual Channel Digital Graphic EQ/Limiter w/T ype V ™ NR and A F S ™ ® iEQ iEQ-15 iEQ-31[...]

  • Page 2

    W ARNING FOR YOUR PROTECTION READ THESE INSTRUCTIONS: KEEP THESE INSTRUCTIONS HEED ALL W ARNINGS FOLLOW ALL INSTRUCTIONS DO NOT USE THIS APP ARA TUS NEAR W A TER CLEAN ONL Y WITH A DR Y CLOTH. DO NOT BLOCK ANY OF THE VENTILA TION OPENINGS. INST ALL IN ACCORDANCE WITH THE MANUF ACTURER’S INSTRUCTIONS. DO NOT INST ALL NEAR ANY HEA T SOURCES SUCH AS[...]

  • Page 3

    U.K. MAINS PLUG W ARNING A molded mains plug that has been cut off from the cord is unsafe. Discard the mains plug at a suitable disposal facility . NEVER UNDER ANY CIRCUMST ANCES SHOULD YOU INSERT A DAMAGED OR CUT MAINS PLUG INTO A 13 AMP POWER SOCKET . Do not use the mains plug without the fuse cover in place. Replacement fuse covers can be obtai[...]

  • Page 4

    Ta b le of Contents iEQ Ta b le of Contents Defining the iEQ .....................................................i Service Contact Info ...............................................ii W arranty ..................................................................ii Installation Recommendations ...............................1 Power Up Quick Key Opt[...]

  • Page 5

    ® iEQ Operation iEQ[...]

  • Page 6

    Intr oduction ® iEQ User Manual i iEQ Congratulations on your purchase of the dbx Professional Products iEQ Series Graphic Equalizer/Limiter with Type V™ noise reduction and AFS™. With an EQ heritage that has pro- duced countless industry standard patents and dates back more than 30 years, the dbx iEQ 15 and iEQ 31 easily live up to the dbx le[...]

  • Page 7

    ® Intr oduction iEQ iEQ User Manual If you require technical support, contact dbx Customer Service. Be prepared to accurately describe the problem. Know the serial number of your unit - this is printed on a sticker attached to the top panel. If you have not already taken the time to fill out your warranty registration card and send it in, please d[...]

  • Page 8

    Installation / User P o wer -Up Modes ® iEQ User Manual 1 iEQ FOR RACK MOUNT USE ONL Y - Install the iEQ in your rack with the provided rack screws. When installed in a rack, the unit should be positioned with enough room (at least one 1U above the and 1U below the unit) to allow proper ventilation. The iEQ should not be mount- ed above or below a[...]

  • Page 9

    User P o wer -Up Modes Cont’ d Operation iEQ Live Filter Lift Time Menu - Press the <AFS> button on CHANNEL 2 to select through selections within menus. The selections for System Lockout are: Live Filter Lift Off, Live Filter Lift Short and Live Filter Lift Long, and will be represented by a lit LED once selected. The following illustra- ti[...]

  • Page 10

    Rear P anel Connections ® iEQ User Manual 3 Operation iEQ iEQ15 - dual channel 15 band graphic equaliz er iEQ31 - dual channel 31 band graphic equaliz er Po w er Cord Receptacle: Connects AC power to the equalizer . Po w er Switch : Switches the power on and of f. Always make audio connections with the power switch in the off position. Input Conne[...]

  • Page 11

    ® iEQ31 - dual channel 31 band graphic equaliz er Input Gain Control : This control sets the signal level to the equalizer . It is capable of -12dB to +12dB of gain. Its effect is apparent by viewing the OUTPUT LEVEL BAR GRAPH. EQ Bypass : This switch removes the graphic equalizer section from the signal path. The BYP ASS switch does not, however [...]

  • Page 12

    Fr ont P anel Connections Cont’ d ® 3 iEQ User Manual 5 Operation iEQ The iEQ 15 and 31 offer the exclusive patent pending AFS (Advanced Feedback Suppression) feedback elimination module. The AFS uses Precision Frequency Detection and state-of-the-art processing to determine the exact portions of a given frequency of your feedback that need to b[...]

  • Page 13

    Basic Connection Operation iEQ ® iEQ User Manual 6 The iEQ Series Equalizers have balanced inputs and outputs that can be used with any balanced or unbalanced line-level device. To connect the equalizer to your sound system refer to the following steps: • Turn off all equipment before making connections. • Mount equalizer in a standard-width r[...]

  • Page 14

    Operation Block diagram ® iEQ User Manual Block Diagram ® 7 iEQ dbx iEQ 15 and 31 Graphic Equalizer Block Diagram ... TYPE IV™ Fr ont Panel Slide P ots Limiter A/D A/D DSP Micro Processor Pro grammable Logic CLIP Detect T ype V™ NR EQ Bypass Low Cut Range AFS (Red LED) AFS (Green LED) Gain Reduction Output meter Input Gain Input D/A RF Filter[...]

  • Page 15

    ® iEQ User Manual ® Specifications Operation iEQ 8 Inputs Connectors: 1/4” TRS, female XLR (pin 2 hot), and Euroblock T ype: Electronically balanced/unbalanced, RF filtered Impedance: Balanced 40k Ω , unbalanced 20k Ω Max Input Level: +22dBu balanced or unbalanced CMRR: >40dB, typically >55dB at 1kHz Outputs Connectors: 1/4” TRS, ma[...]

  • Page 16

    ® 8760 South Sandy Pkwy . Sandy , Utah 84070 Phone: (801) 568-7660 F ax: (801) 568-7662 Questions or comments? E•mail us at: customer@dbxpr o .com or visit our W orld Wide W eb home pa ge at: www .dbxpro .com 18-1904-A A Harman International Company[...]