Contents

Main Features
USING THE UNIT SAFELY
IMPORTANT NOTES
Names of Things and What They Do
- Front Panel
- Rear Panel
Installing Batteries
Connections
- Turning On the Power
- Turning Off the Power
Tuning the Bass (Bypass/Tuner)
Introduction to Effects and Parameters
- About the Effect Connection Sequence
- BASS ENHANCE
- SFX
- COMP/DRIVE (Compressor/Drive)
- DELAY/MOD
- EQ (Equalizer)
- WAH
- NS (Noise Suppressor)
  - THRESHOLD
- MASTER LEVEL
Creating Sounds Easily (EZ EDIT)
Saving and Calling Up Tones (Memory Mode)
- Manual Mode and Memory Mode
- Switching Between Manual and Memory Mode
- Patches and Banks
- Saving Tones (Write)
- Calling Up and Using Saved Sounds (Patch Change)
  - Switching Numbers
  - Switching Banks
- Changing Patch Settings (Patch Edit Mode)
Other Functions
- Using Footswitch Pedals
  - Connecting a Footswitch Pedal
- Returning the ME-20B to Its Factory Settings (Factory Reset)
- Adjusting the Expression Pedal
Patch List
Factory Settings
Blank Chart
Troubleshooting
Specifications
Index

Boss ME-20B Owner’s Manual

Pages 40

Year 2007

Language(s)

of 40

Boss ME-20B Specification

The Boss ME-20B is a versatile multi-effects pedal designed specifically for bass players, offering a comprehensive range of effects, robust construction, and user-friendly operation. It measures approximately 384 mm in width, 225 mm in depth, and 82 mm in height, making it compact enough for easy transportation yet substantial in its build to withstand rigorous use. The ME-20B features a rugged metal chassis, ensuring durability during live performances and rehearsals.

At the core of the ME-20B is a powerful digital signal processor that provides a wide array of effects, including modulation, delay, reverb, and overdrive/distortion, tailored to enhance bass tones. It includes an expression pedal that allows dynamic control over volume, wah, and other parameters, offering expressive performance capabilities. The unit's intuitive interface consists of three footswitches for patch selection and real-time control, alongside an array of knobs and buttons that enable easy editing and customization of effects.

The ME-20B offers 30 user patch locations, allowing players to save and recall their favorite settings quickly. Its sound library includes a range of pre-configured patches, catering to different musical styles and genres. Connectivity options include a 1/4-inch input for the bass guitar, dual 1/4-inch outputs for mono or stereo operation, and a headphone output for silent practice. An auxiliary input is available for connecting external audio sources, enabling practice along with tracks. The pedal operates on six AA batteries or an optional AC adapter, providing flexibility for various performance settings. With its combination of advanced effects processing and ease of use, the Boss ME-20B is a valuable tool for bassists seeking to expand their sonic palette.

Boss ME-20B F.A.Q.

How do I perform a factory reset on the Boss ME-20B?

To perform a factory reset on the Boss ME-20B, turn off the unit. Then, while holding down the COMP and OD/DS pedals, turn the power back on. This will reset all settings to their factory defaults.

What is the correct way to connect the Boss ME-20B to an amplifier?

To connect the Boss ME-20B to an amplifier, use a standard 1/4 inch instrument cable. Connect the output of the ME-20B to the input of your amplifier. Ensure the volume is set to an appropriate level to avoid any sudden loud sounds.

How can I save a custom patch on the ME-20B?

To save a custom patch, first make the desired adjustments to your sound. Then, press and hold the WRITE button until the display begins to blink. Use the pedals to select a memory location and press WRITE again to save.

Why does my ME-20B suddenly power off during use?

If your ME-20B powers off unexpectedly, check the power supply connection. Ensure it is securely connected and that you are using the correct adapter. Also, check for any signs of cable damage or wear.

Can I use batteries with the Boss ME-20B, and if so, what type?

Yes, the Boss ME-20B can be powered using six AA batteries. For best performance, use alkaline batteries. Be sure to replace all batteries at the same time to ensure consistent performance.

What should I do if the expression pedal on my ME-20B feels loose?

If the expression pedal feels loose, check the pedal's tension adjustment. You can adjust the pedal tension by tightening or loosening the screw located on the side of the pedal. Consult the manual for detailed instructions.

How do I calibrate the expression pedal on the Boss ME-20B?

To calibrate the expression pedal, enter calibration mode by turning off the unit, then holding down the pedal and turning it back on. Follow the on-screen instructions to complete the calibration process.

What effects are included in the Boss ME-20B?

The Boss ME-20B includes a variety of effects such as compression, overdrive/distortion, EQ, delay, reverb, and modulation effects like chorus and flanger. Each effect can be customized to suit your preferences.

How can I update the firmware on my Boss ME-20B?

The Boss ME-20B does not support firmware updates as it is a hardware-based multi-effects processor. Any feature updates or changes would require a new model.

Is it possible to use the ME-20B in a recording setup?

Yes, the ME-20B can be used in a recording setup. Connect the output to an audio interface using a 1/4 inch cable. Ensure the interface is set to receive instrument-level signals for optimal sound quality.