Modulation MD-200 - Guitar amplifier BOSS - Free user manual and instructions
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| Product Type | Guitar Modulation Pedal |
| Brand | Boss |
| Model | MD-200 |
| Dimensions (W x D x H) | 7.3 x 5.0 x 2.4 inches |
| Weight | 1.1 lbs (0.5 kg) |
| Power Supply | 9V DC (Boss PSA series adapter) |
| Current Draw | 220 mA |
| Number of Modulation Types | 12 (including Chorus, Flanger, Phaser, Vibrato, etc.) |
| Inputs | 2 x 1/4" (L/Mono, R) |
| Outputs | 2 x 1/4" (L/Mono, R) |
| MIDI I/O | 5-pin DIN In/Out |
| Expression Pedal Jack | 1 x 1/4" TRS |
| USB Port | Micro-B for firmware updates |
| Presets | 27 (9 banks x 3 patches) |
| True Bypass | Yes (with buffer option) |
| Main Functions | Select modulation type, adjust rate/depth, save presets, tap tempo |
| Maintenance and Cleaning | Wipe with soft dry cloth; avoid solvents |
| Safety Precautions | Do not expose to moisture or extreme temperatures |
| Spare Parts and Repairability | Contact Boss support or authorized service center |
Frequently Asked Questions - Modulation MD-200 BOSS
How do I power the MD-200?
Use a 9V DC power supply (Boss PSA series) with center-negative polarity. Current draw is 220 mA. Do not use batteries.
Can I use the MD-200 in stereo?
Yes, it has stereo inputs and outputs. Use both L/Mono and R jacks for stereo operation.
How do I create and save a preset?
Select a modulation type, adjust parameters, then press and hold the 'WRITE' button. Choose a preset location using the footswitches or knob, then press 'WRITE' again.
Does the MD-200 have tap tempo?
Yes, press the 'TAP' footswitch to set the tempo. The rate LED will blink in sync.
Can I connect an expression pedal?
Yes, connect a TRS expression pedal (like Boss EV-30) to the EXP jack. This allows real-time control of parameters such as rate or depth.
How to update the firmware?
Download the latest firmware from Boss website, connect the MD-200 via USB to your computer, and run the update utility.
What is the difference between true bypass and buffer?
True bypass disconnects the pedal circuit when off, preserving signal purity. Buffer mode maintains signal strength for long cable runs. Switch via internal dip switch.
Can I use MIDI to control presets?
Yes, connect MIDI controller to the MIDI IN port. Assign PC numbers to presets. See manual for MIDI implementation chart.
How do I clean the pedal?
Use a soft, dry cloth to wipe the exterior. Do not use alcohol or abrasive cleaners.
What modulation types are included?
Chorus, Flanger, Phaser, Vibrato, Tremolo, Rotary, Slicer, Lo-Fi, Overtone, Ring Mod, Harmony, and Slow Gear.
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USER MANUAL Modulation MD-200 BOSS
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Product information
Brand : BOSS
Model : Modulation MD-200
Category : Guitar amplifier