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Thank you, and congratulations on your choice of BOSS CEB-3 Bass Chorus. Before using this unit, carefully read the sections entitled: “USING THE UNIT SAFELY” and “IMPORTANT NOTES” (separate sheet). These sections provide important informa- tion 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 man- ual should be read in its entirety.
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The BOSS CEB-3 is a chorus unit that is specifically designed for electric bass guitar. The CEB-3 allows you to select the frequency band to which the chorus effect will ap- ply. That is, you can have the effect applied to the overall sound, or only a specific frequency range if you wish.
Panel Description fig.01 1. AC Adaptor Jack Accepts connection of an AC Adaptor (op- tionally available BOSS PSA-Series). By using an AC Adaptor, you can play with- out being concerned about how much bat- tery power you have left. * Use only the specified AC adaptor (PSA- Series), and make sure the line voltage at the installation matches the input voltage specified on the AC adaptor's body.
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(unprocessed) signal is not output. Output B: Only the dry signal is output. The CEB-3 adopts the “space synthesis sys- tem” for stereo output. That is, the depth of the effect varies depending on the distance be- tween speakers. Note that lowering a filter...
Panel Description 4. Pedal Switch Used for switching effects on/off. 5. Thumbscrew When this screw is loosened, the pedal will open, allowing you to change the bat- tery. * For instructions on changing the batteries, refer to “Changing the Battery” (p. 11). 6.
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fig.02 7. E. LEVEL (effect level) Knob This knob adjusts the level of the effect sound (in relation to the input signal). Ro - tating the knob clockwise increases the level of the effect sound. 8. LOW FILTER Knob This knob controls the lower frequencies of the effect sound.
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Connections fig.03 OUT 9V DC/200mA Bass Amplifier For monoural use, make the connection to the OUTPUT A (MONO) jack. AC Adaptor BOSS PSA-series (option) Bass Guitar...
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* Inserting a plug into the INPUT Jack will automatically switch the unit on. * Noise may be produced if wireless communications devices, such as cell phones, are operated in the vicinity of this unit. Such noise could occur when receiving or initiating a call, or while conversing.
Operating the Unit fig.05 1. When you have made the necessary connections, set the knobs as shown in the illustration. 2. Depress the pedal switch to turn the effect on. (Make sure that the CHECK Indicator lights.) 3. Adjust the speed of the chorus effect using the RATE Knob.
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 re- placed. Replace the battery following the steps below. fig.09 Thumbscrew Battery Snap Cord Battery Snap...
Specifications CEB-3: Bass Chorus 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...-86 dBu (IHF-A, Typ.) Controls...Pedal Switch Indicator...CHECK Indicator (serves also as battery check indicator) Connectors...INPUT Jack...
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Specifications Current Draw ...22 mA (DC 9 V) Dimensions ...73 (W) x 129 (D) x 59 (H) mm Weight ...450 g / 1 lb (including battery) Accessories...Owner’s Manual Options...AC Adaptor PSA-Series * 0 dBu = 0.775 Vrms * In the interest of product improvement, the specifications and/or appearance of this unit are subject to change without prior notice.
This product complies with the requirements of European Directive 89/336/EEC. FEDERAL COMMUNICATIONS COMMISSION RADIO FREQUENCY INTERFERENCE STATEMENT This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules.