• To prevent malfunction and equipment failure, always turn down the volume, and turn off all the units before making any connections.
• Do not use connection cables that contain a built-in resistor.

1. Connect each of the effect units.

   Although you can connect this unit as the last effect unit in the signal chain, the effect works better when you connect the SEND and RETURN jacks as shown in the illustration.

   

2. Set the knobs as shown in the illustration.

   

3. Press the pedal switch to make the CHECK indicator light up (effect on).

   The CHECK indicator goes dark only in mute mode.

4. Activate the effect unit for which you want to remove noise.
5. When you aren’t playing, the REDUCTION indicator lights up. Adjust the [THRESHOLD] knob until the noise disappears.

   The trick is to adjust the knob so that the sound naturally attenuates right around when it stops.

6. Use the [DAMP] knob to adjust the amount of the gate and reduction effect.

   At maximum effect, this most clearly demarcates the sound of what you’re playing and the silence. To make the change between sound and silence smoother, turn the knob counterclockwise.

   

7. If the change between sound and silence is unnatural, turn the [DECAY] knob clockwise.

   

When operating on battery power only, the CHECK indicator gets dimmer when battery power gets too low. Replace the batteries as soon as possible.

• Batteries should always be installed or replaced before connecting any other devices. This way, you can prevent malfunction and damage.

1. Hold down the pedal and loosen the thumbscrew, then open the pedal upward.

   You don’t need to take the thumbscrew out completely to open the pedal.

2. Remove the old battery from the battery housing, and remove the snap cord connected to it.
3. Connect the battery snap 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, hold down the pedal while tightening the thumbscrew into the guide bush hole.

Battery usage

• If you handle the battery improperly, you risk explosion and fluid leakage. Make sure that you carefully observe all of the items related to batteries that are listed in “USING THE UNIT SAFELY” and “IMPORTANT NOTES” (the leaflet “USING THE UNIT SAFELY”).
• Use alkaline batteries if you are running the unit on battery power.
• This device already contains a battery when shipped from the factory. This is a test battery, which may not last as long as a new one.
• The sound may distort when the battery is nearly depleted. This is not a malfunction. If this happens, replace the battery or use the AC adaptor (sold separately).
• When the battery voltage drops, the effects may not work as well as usual, the sound may become unstable, the CHECK indicator may become dimmer, the unit may stop outputting sound and so on. For this reason, you should replace the battery with a new one.

• 0 dBu = 0.775 Vrms
• This document explains the specifications of the product at the time that the document was issued. For the latest information, refer to the Roland website.