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Boss Multi Overtone MO-2 Manual

Before using this unit, carefully read the sections entitled: "USING THE UNIT SAFELY" and "IMPORTANT NOTES" (supplied on a 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. The manual should be saved and kept on hand as a convenient reference.

A battery was installed in the unit before it left the factory. The life of this battery may be limited, however, since its primary purpose was to enable testing.

Main Features

The MO-2 is a new type of effect that makes your sound richer by generating new overtones.

You can enjoy this effect not only with single notes but also when playing chords, and it works well with both clean and distorted sound.

A detune control adds even more richness, and the stereo output makes your sound enjoyably spacious.

warning Incorrect handling of batteries can cause leakage, overheating, fire, or explosion. Before use, you must read and strictly observe all of the precautions that accompany the batteries.

Panel Descriptions

Panel Descriptions

Precautions When Connecting

  • 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.
  • Some connection cables contain resistors. Do not use cables that incorporate resistors for connecting to this unit. The use of such cables can cause the sound level to be extremely low, or impossible to hear. For information on cable specifications, contact the manufacturer of the cable.
  • If you'll be using the MO-2 for an extended time, we recommend that you use an AC adaptor. If you prefer to use a battery, we recommend an alkaline battery.
  • Raise the amp volume only after turning on the power to all connected devices.
  • Once the connections have been completed, turn on power to your various devices in the order specified. By turning on devices in the wrong order, you risk causing malfunction and/or damage to speakers and other devices.
    When powering up: Turn on the power to your guitar amp last.
    When powering down: Turn off the power to your guitar amp first.
  • This unit is equipped with a protection circuit. A brief interval (a few seconds) after power up is required before the unit will operate normally.
  • When operating on battery power only, the unit's indicator will become dim when battery power gets too low. Replace the battery as soon as possible.

Changing the Battery

When the indicator goes dim or no longer lights while the effect is on, it means that the battery must be replaced. Replace the battery following the steps below.

  • Since this device consumes a considerable amount of power, we recommend that you use an AC adaptor.

If using batteries, please use alkaline batteries.

Changing the Battery

  1. Hold down the pedal and loosen the thumbscrew, then open the pedal upward.
    • The pedal can be opened without detaching the thumbscrew completely.
  2. Remove the old battery from the battery housing, and remove the snap cord connected to it.
  3. Connect the snap cord to the new battery, and place the battery inside the battery housing.
    • Be sure to carefully observe the battery's polarity (+ versus -).
  4. Slip the coil spring onto the spring base on the back of the pedal, and then close the pedal.
    • Carefully avoid getting the snap cord caught in the pedal, coil spring, and battery housing.
  5. Finally, insert the thumbscrew into the guide bush hole and fasten it securely.

Specifications

BOSS MO-2: Multi Overtone

Nominal Input Level -20 dBu
Input Impedance 1 M ohm
Nominal Output Level -20 dBu
Output Impedance 1 k ohm
Recommended Load Impedance 10 k ohms or greater
Power Supply DC 9 V: Carbon-zinc battery (9 V, 6F22)/Alkaline battery (9 V, 6LR61), AC Adaptor (sold separately)
Current Draw 40 mA
  • Expected battery life under continuous use:
    Carbon: Approx. 3 hours
    Alkaline: Approx. 10 hours
    These figures will vary depending on the actual conditions of use.
Dimensions 73 (W) x 129 (D) x 59 (H) mm
2-7/8 (W) x 5-1/8 (D) x 2-3/8 (H) inches
Weight 430 g/1 lb (including battery)
Accessories Owner's Manual, Leaflet ("USING THE UNIT SAFELY," "IMPORTANT NOTES," and "Information"), Alkaline battery (9 V, 6LR61)
Option (sold separately) AC adaptor (PSA series)
  • 0 dBu = 0.775 Vrms
  • The battery that was supplied with the unit is for temporary use, intended primarily for testing the unit's operation. We suggest replacing this with an alkaline dry cell.
  • In the interest of product improvement, the specifications and/or appearance of this unit are subject to change without prior notice.

Setting Samples

Setting Samples

Documents / Resources

Download manual

Here you can download full pdf version of manual, it may contain additional safety instructions, warranty information, FCC rules, etc.

Download Boss Multi Overtone MO-2 Manual

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Questions and answers

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