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Intermec GEQ-1231D manual

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Table of contents for the manual

  • Page 1

    GEQ-1231D Stereo 31-Band Graphic Equalizer with HC/LC and Limiter GEQ-2231D Dual 31-Band Graphic Equalizer with HC/LC and Limiter  Copyright 2004 Inter-M Corporation[...]

  • Page 2

    GEQ-1231D/GEQ -2231D 31-Band Graphic Equalizer/Limiter Contents Welcome ........................................................................................................................ ............. 3 Unpacking ...................................................................................................................... ......... 4 [...]

  • Page 3

    GEQ-1231D/GEQ -2231D 31-Band Graphic Equalizer/Limiter Welcome Congratulations on your purchase of the GEQ-1231D/GEQ-2231D, a state-of-the-art digital graphic equalizer with extended frequency range. The GEQ -1231D/GEQ-2231D is the result of a professional collaboration be tween two audio indust ry leaders: Inter-M, known for a wide range of high-q[...]

  • Page 4

    GEQ-1231D/GEQ -2231D 31-Band Graphic Equalizer/Limiter Unpacking Although your GEQ-1231D/GEQ-2231D is neither complicated nor difficult to operat e, we recommend you take a fe w minutes to read th is brief manual and familiarize yourself with the important information regarding product features, setup and operat ion. As with most elect ronic device[...]

  • Page 5

    GEQ-1231D/GEQ -2231D 31-Band Graphic Equalizer/Limiter 12. Use only with a cart, stand, tripod, bracket, or table spe cified, or sold with the apparatus. W hen a cart is used, use caution when moving the cart/apparat us combination to av oid overturning. 13. Unplug this apparatus during lightning st orms or when unused for long periods of time. 14.[...]

  • Page 6

    GEQ-1231D/GEQ -2231D 31-Band Graphic Equalizer/Limiter GEQ-1231D/GEQ-2231D 31-Band Graphic Equalizer/Limiter Features • Traditional warm analog sound coupled with state-of-the-art digital signal processing • Balanced XLR & 1/4 TRS inputs and outputs (unbalanced compatible) • Stereo 31-Band graphic equalizer in a compact 1RU form factor (G[...]

  • Page 7

    GEQ-1231D/GEQ -2231D 31-Band Graphic Equalizer/Limiter Front Panel Controls 1. EQ Cut/Boost Controls Separate Cut/Boost sliders are provided fo r each of the 31 1/3-octave frequency bands. Each slider covers a maximu m cut/boost range of ±12dB or ±6dB, depending on the position of t he Range switch (3). In the GEQ-1231D, each slider controls the [...]

  • Page 8

    GEQ-1231D/GEQ -2231D 31-Band Graphic Equalizer/Limiter important t o achieve sufficient signal level to light all green and yellow LE Ds of the Inpu t Level Meter. Avoid li ghting th e red (overload) LEDs except on rare occasions and for short duration. If the s ourc e level is too lo w, inp ut gai n may be i ncre ased with th e Input Gain Control,[...]

  • Page 9

    GEQ-1231D/GEQ -2231D 31-Band Graphic Equalizer/Limiter rumbles and wind noise, while leav ing other frequencies u naffected. W hen the fil ter is activated the assoc iated LE D lig hts. Ro t ati ng the kno b to the Of f positi on remo ves the f ilter com pletely fro m the signa l path. The GEQ-1231D has only one low-cut filter control for both chan[...]

  • Page 10

    GEQ-1231D/GEQ -2231D 31-Band Graphic Equalizer/Limiter Rear Panel Controls 1. XLR Input Connectors Balanced three-pin XLR connectors. 2. TRS Input Connectors Balanced three-conductor 1/4" TRS connectors. 3. Input Ground Lift Switch In the Lift position this switch is u seful in eliminating grou nd loops and other electrically induced hum from [...]

  • Page 11

    GEQ-1231D/GEQ -2231D 31-Band Graphic Equalizer/Limiter 7. AC Power Input Connect a standard t hree-pin AC cable to this connector. 8. Dip Switch Selector The four-bit DI P Switch provides additional features to t ailor the unit to a specific sys tem en viro nment. B its 1 thro ugh 3 addres s output g ain attenu atio n and un ity- gai n mod e. Bit 4[...]

  • Page 12

    GEQ-1231D/GEQ -2231D 31-Band Graphic Equalizer/Limiter Applications 12[...]

  • Page 13

    GEQ-1231D/GEQ -2231D 31-Band Graphic Equalizer/Limiter 13[...]

  • Page 14

    GEQ-1231D/GEQ -2231D 31-Band Graphic Equalizer/Limiter 14[...]

  • Page 15

    GEQ-1231D/GEQ -2231D 31-Band Graphic Equalizer/Limiter 15[...]

  • Page 16

    GEQ-1231D/GEQ -2231D 31-Band Graphic Equalizer/Limiter Block Diagram (GEQ-1231D) 16[...]

  • Page 17

    GEQ-1231D/GEQ -2231D 31-Band Graphic Equalizer/Limiter Block Diagram (GEQ-2231D) 17[...]

  • Page 18

    GEQ-1231D/GEQ -2231D 31-Band Graphic Equalizer/Limiter Specifications ELECTRICAL Analog Input XLR and 1/4" TRS, Electronically Balanced, RF filtered, Fully Unbalanced Compatible Impedance > 1 0 k Ω Maximum Input Level 2 0 d B u Analog Output XLR and 1/4" TRS, Electronically Balanced, RF filtered, Fully Unbalanced Compatible Impedance[...]

  • Page 19

    GEQ-1231D/GEQ -2231D 31-Band Graphic Equalizer/Limiter Inter-M, Ltd. (Korea) began operations in 1983. Since then, Inter-M has grown to bec ome one of the largest manufacturers of professional audio and commercial sound electronics equipment in the world. Inter-M has gained worldwide recognition for its own branded products, as well as private labe[...]