1. Produktet er slutview
The MXR M300 Reverb is an electric guitar effects pedal designed to provide a wide range of high-quality reverb effects. It features a compact design, a simple three-knob control layout, and a hi-fi analog dry path with 20 volts of headroom, utilizing Constant Headroom Technology. This pedal offers six distinct reverb styles, selectable via the Tone knob.
This particular product is offered as a bundle, which includes the MXR M300 Reverb pedal along with a Tonebird Groovetech multi-guitar tool, an ECB003 9V power supply, Dunlop assorted guitar picks, and two MXR pancake-style patch cables.

Image 1.1: The MXR M300 Reverb pedal shown with included bundle accessories: a multi-tool, assorted guitar picks, a 9V power supply, and patch cables.
Nøglefunktioner:
- Six distinct reverb styles: Plate, Spring, Epic, Mod, Room, Pad.
- Hi-fi analog dry path with 20 volts of headroom.
- Mono or Stereo operation.
- Selectable True Relay Bypass or Trails Bypass mode.
- Expression pedal compatibility for dynamic control.
- 100% wet mode capability.
2. Opsætningsvejledning
2.1 Strømtilslutning
Connect the included ECB003 9V DC power supply to the 9V input jack on the rear of the pedal. Ensure the power supply is rated for 9V DC and has a center-negative polarity. Using an incorrect power supply can damage the unit.

Billede 2.1: Bagside view of the MXR M300 Reverb pedal, showing the 9V power input jack and the 'IN' audio input jack.
2.2 Lydforbindelser
The MXR M300 Reverb supports both mono and stereo configurations.
- Mono-opsætning: Connect your instrument (e.g., guitar) to the 'IN' jack on the rear of the pedal. Connect the 'OUT' jack on the side of the pedal to your amplifter eller den næste pedal i din signalkæde.
- Stereo opsætning: For stereo input, connect your stereo source to both the 'IN' and 'EXP' jacks. For stereo output, connect the 'OUT' and 'EXP' jacks to two separate amplifiers or stereo input devices. Consult the full manual for detailed stereo wiring diagrams.

Billede 2.2: Side view of the MXR M300 Reverb pedal, highlighting the 'OUT' audio output jack and the 'EXP' (Expression) jack.
2.3 Expression Pedal Connection (Optional)
A Dunlop DVP series volume/expression pedal can be connected to the 'EXP' jack for real-time control. This allows you to toggle and blend between two different knob setting configurations, offering dynamic control over your reverb sound.
3. Betjeningsvejledning
3.1 kontroller overview

Billede 3.1: Forside view of the MXR M300 Reverb pedal, showing the Tone, Decay, and Blend knobs, along with the footswitch and status LED.
- TONE knap: Controls the tonal character of the reverb. Push this knob to cycle through the six distinct reverb styles. The current style is indicated by the adjacent LEDs.
- DECAY-knap: Adjusts the length of the reverb tail. Turn clockwise for longer decay times, counter-clockwise for shorter decay times.
- BLEND-knap: Controls the mix between your dry guitar signal and the wet reverb effect. Turn clockwise for more reverb, counter-clockwise for less.
- Fodkontakt: Aktiverer eller omgår effekten.
3.2 Reverb Styles
The M300 offers six unique reverb algorithms:
- PLADE: Provides a shimmering, smooth wash of space, commonly used in studio recordings.
- FORÅR: A recreation of classic amp-based spring reverb. The Tone control adjusts from dark vintage to bright surfy sounds.
- EPISK: A unique combination of interwoven analog-tone delay lines and complex modulation, suitable for expansive, atmospheric sounds.
- MOD: Offers a plate-flavored spaciousness with rich, organic modulation in the feedback path.
- VÆRELSE: Adds subtle body and projection at shorter decay times, or rich, organic space without washing out at longer decay times.
- PAD: A unique combination of sub-octave + octave-up with echoes, shimmer, and synth/organ modulation, creating a lush, evolving soundscape.
3.3 Bypass Modes
The MXR M300 Reverb pedal offers two bypass modes:
- True Relay Bypass: By default, the pedal operates in true bypass, completely removing the pedal's circuitry from the signal path when disengaged.
- Trails Bypass: This buffered bypass mode allows reverb tails to naturally decay even after the effect is disengaged. Refer to the complete product manual for instructions on how to switch between bypass modes.
4. Vedligeholdelse
To ensure the longevity and optimal performance of your MXR M300 Reverb pedal, follow these general maintenance guidelines:
- Rensning: Use a soft, dry cloth to clean the pedal's exterior. Avoid using abrasive cleaners or solvents, as these can damage the finish and internal components.
- Opbevaring: Opbevar pedalen et tørt sted, væk fra ekstreme temperaturer, fugtighed og direkte sollys.
- Forbindelser: Kontrollér regelmæssigt alle kabelforbindelser for slitage. Sørg for, at stikkene er fri for støv og snavs.
- Strømforsyning: Always use the specified 9V DC center-negative power supply. Disconnect power when the pedal is not in use for extended periods.
5. Fejlfinding
If you encounter issues with your MXR M300 Reverb pedal, consider the following troubleshooting steps:
- Ingen strøm: Ensure the 9V DC power supply is correctly connected and functioning. Check the power outlet.
- No Sound/Weak Sound: Verify all audio cables are securely connected to the correct input and output jacks. Test cables with another device to rule out cable failure. Ensure the 'BLEND' knob is not set to minimum (fully dry).
- Uønsket støj: Check for ground loops if using multiple pedals. Ensure the power supply is not faulty or introducing noise. Try isolating the pedal to determine if the noise originates from another part of your signal chain.
- Malfunction Upon Power-Up (Clicking/Flashing LEDs): If the unit exhibits an audible mechanical clicking sound or flashing LEDs without proper operation immediately after power-up, this indicates a potential internal issue. Disconnect power and contact customer support or the seller for assistance. Do not attempt to repair the unit yourself.
- Incorrect Reverb Style: Push the 'TONE' knob to cycle through the available reverb styles. Ensure the desired style's LED is illuminated.
6. Specifikationer
| Feature | Detalje |
|---|---|
| Modelnummer | M300-TBB (Bundle) / M300 (Pedal) |
| Varens vægt | 1.4 pund |
| Pakkedimensioner | 5.8 x 4.8 x 2.8 tommer |
| Signalformat | Analog (Dry Path) |
| Strømkilde | Elektrisk med ledning |
| Voltage | 9 Volts DC (Center-Negative) |
| Ståhøjde | 20 Volts (Constant Headroom Technology) |
| Bypass type | True Relay Bypass / Trails Bypass (Selectable) |
| Forbindelse | Mono/Stereo Input/Output, Expression Jack |

Billede 6.1: Bund view of the MXR M300 Reverb pedal, showing the FCC compliance information.
7. Garanti og support
For detailed warranty information, please refer to the documentation included with your purchase or visit the official MXR/Dunlop webGarantibetingelserne kan variere afhængigt af region og forhandler.
If you require technical assistance or have questions not covered in this manual, please contact the manufacturer (MXR/Dunlop) or your authorized retailer (Tonebird/Instrument Alley) for support.





