Boss GEB-7 Owner's Manual
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Boss GEB-7 Owner's Manual

Bass equalizer
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Owner's Manual
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AC & BATTERY
POWERED
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Summary of Contents for Boss GEB-7

  • Page 1 Owner's Manual AC & BATTERY POWERED...
  • Page 2 Thank you, and congratulations on your choice of BOSS GEB-7 Bass Equalizer. Before using this unit, carefully read the sections entitled: “USING THE UNIT SAFELY” and “IMPORTANT NOTES” (separate sheet). These sections provide important information concerning the proper operation of the unit. Additionally, in order to feel assured that you have gained a good grasp of every feature provided by your new unit, this manual should be read in its entirety.
  • Page 3 While making it easy to obtain the most delicate of nuances, it also allows for radically unique settings as well. • The GEB-7 allows you to adjust the output level of the equalized sound so it matches the level of the input sound.

  • Page 4: Panel Descriptions

    PANEL DESCRIPTIONS AC Adaptor Jack Accepts connection of an AC Adaptor (op- tionally available BOSS PSA-Series). By using an AC Adaptor, you can play without being concerned about how much battery power you have left. * You may find that it is a good idea to keep a battery installed in the unit even while using an adaptor.

  • Page 5: Output Jack

    CHECK Indicator This indicator shows whether an effect is ON/OFF, and also doubles as the Battery Check indicator. The indicator lights when an effect is ON. If this indicator goes dim or no longer lights while an effect is ON, the battery is near exhaustion and should be replaced imme- diately.
  • Page 6 Equalizer Control knobs Equalizer Control Knobs These knobs allow you to boost or cut the center frequency of 50, 120, 400, 500, 800 4.5k Level 800, 4.5 k or 10 kHz within +/-15 dB. + 15 Level Control Knob This knob allows you to adjust the output level of the effect sound to minimize the level difference between the effect and - 15...

  • Page 7: Making The Connections

    MAKING THE CONNECTIONS AC Adaptor (PSA-Series ; Optional) OUT 9V DC / 200mA Electric Bass Amplifier...
  • Page 8 * Inserting a plug into the INPUT Jack will automatically switch the unit on. * To prevent malfunction and/or damage to speakers or other devices, always turn down the volume, and turn off the power on all devices before making any connections. * If there are batteries in the unit while an AC adaptor is being used, normal operation will continue should the line voltage be interrupted (power blackout or power cord disconnection).

  • Page 9: Operating The Unit

    OPERATING THE UNIT When you have made the necessary connections, set the knobs as shown in the illustration. Depress the pedal switch to turn the effect on. (Make sure that the CHECK Indicator lights.) Adjust the tone using the relevant Equal- izer Control Knobs.

  • Page 10: Changing The Battery

    CHANGING THE BATTERY When the indicator goes dim or no longer lights while an effect is on, it means that the battery is nearly dead and must be replaced. Replace the battery following the steps below. Battery Snap Cord Battery Snap 9V Battery Loosen the thumbscrew at the front of the pedal, then lift the pedal upwards to open the...

  • Page 11: Frequency Response

    FREQUENCY RESPONSE + 15 FREQUENCY ( Hz )

  • Page 12: Sample Setting

    SAMPLE SETTING Standard Rock 800 4.5k + 15 - 15 Slapping Play 800 4.5k + 15 - 15 Heavy Metal Level + 15 - 15 Bass Amplifier Simulation Level + 15 - 15 800 4.5k 800 4.5k Level Level...

  • Page 13: Setting Memo

    SETTING MEMO 800 4.5k + 15 - 15 800 4.5k + 15 - 15 Level + 15 - 15 Level + 15 - 15 800 4.5k Level 800 4.5k Level...

  • Page 14: Specifications

    SPECIFICATIONS GEB-7 : Bass Equalizer Nominal Input Level ... -20 dBu Input Impedance ... 1 M Nominal Output Level ... -20 dBu Output Impedance ... 1 k Recommended Load Impedance .. 10 k or greater Residual Noise Level ... -100 dBu (IHF-A, Typ.) Variable Range ...
  • Page 15 Dimensions ... 73 (W) x 129 (D) x 59 (H) mm Weight ... 440 g / 1 lb (including battery) Accessories ... Owner’s Manual Options ... AC Adaptor PSA-Series * 0 dBu = 0.775 V rms * In the interest of product development, the specifications and/or appearance of this unit are subject to change without prior notice.
  • Page 16 2601720402...

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