Behringer AC112 User's Manual
![Behringer AC112 manual cover](/images/bb8fe720fed6475b11ab4c10/thumbs/thumb175x175.webp)
To connect your AC112 to an external speaker cabinet, use the speaker output jack located on the rear panel of the amplifier. Ensure the impedance of the external cabinet matches the amplifier's output impedance to avoid damage.
Regularly check the tubes for any signs of wear or damage. Ensure the amp is cool before handling. Replace tubes in matched pairs and avoid unnecessary movement during operation to extend their lifespan.
First, check the power cord and ensure it is plugged in securely. Verify the outlet is functional. Inspect the amp's fuse and replace it if blown. If the issue persists, consult a professional technician.
Check the volume and gain controls to ensure they are not set to zero. Confirm that the guitar is properly connected and functioning. Inspect the speaker connections and examine the tubes for any signs of failure.
Ensure all cables are shielded and in good condition. Keep the amplifier away from other electronic devices that may cause interference. Use a power conditioner to stabilize the power supply.
Use a soft, dry cloth to wipe down the exterior. Avoid using any harsh chemicals or solvents. For stubborn stains, slightly dampen the cloth with water. Make sure the amp is unplugged during cleaning.
Connect your external effects processor to the effects send and return jacks on the rear panel of the amplifier. Adjust the effects level on both the processor and the amp to achieve the desired sound.
Set the gain to a low level and adjust the bass, mid, and treble controls to your preference. Keep the volume between moderate and high to maintain clarity without distortion.
Unplug the amplifier and locate the fuse holder near the power socket. Use a screwdriver to open the holder and remove the blown fuse. Replace it with a new fuse of the same rating and close the holder securely.
Check the reverb control knob to ensure it is not set to zero. Inspect the internal reverb tank connections for any loose wires. If the problem persists, consider having a technician examine the unit.