Boss ML-2 Metal Core Owner’s Manual

To connect the Boss ML-2 Metal Core to your guitar setup, plug your guitar into the INPUT jack of the pedal. Then, connect the OUTPUT jack to your amplifier or the next effect in your chain using standard 1/4-inch instrument cables. Ensure the pedal is powered via a 9V battery or an AC adapter.
For a heavy metal tone, start with the LOW and HIGH knobs set to 12 o'clock. Adjust the LOW knob to enhance bass frequencies and the HIGH knob for treble. Tweak these settings to match your amplifier and personal preference for a balanced heavy sound.
If there's no sound when the pedal is engaged, check the power supply to ensure it’s working. Verify all cables are connected properly. Also, make sure the volume and level knobs on the pedal and your amplifier are turned up.
To reduce noise, try using high-quality shielded cables and ensure your power supply is isolated. Adjust the DIST knob to a lower setting if the distortion level is too high. Using a noise gate pedal in conjunction can also help eliminate unwanted noise.
If the footswitch is not responding, check the battery or power supply first. If those are working, inspect the footswitch for physical damage or debris that might be impeding its movement. If necessary, consult a professional technician for repair.
Yes, the Boss ML-2 can be used in a recording setup. Connect it to your audio interface or mixer through the OUTPUT jack. Use the EQ and DIST knobs to shape your tone for the recording environment.
To maintain your Boss ML-2, keep it clean and free from dust. Use a soft, dry cloth for cleaning. Remove the battery if not using the pedal for extended periods to prevent leakage. Regularly check cables and connectors for wear and tear.
The recommended power supply for the Boss ML-2 is a 9V DC adapter with a negative center. Using the specified adapter ensures consistent performance and avoids potential damage.
To achieve a scooped mid sound, lower the MID frequencies on your amplifier or use an external EQ pedal to reduce midrange. Set the LOW and HIGH knobs on the ML-2 slightly above 12 o'clock to emphasize bass and treble.
If the LED light is not illuminating, check if the pedal is receiving power from the battery or adapter. Replace the battery if necessary. If the issue persists, the LED might be faulty and require replacement by a professional.