Behringer AC108 User's Manual

Pages 8

Year 2004

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Behringer AC108 Specification

The Behringer AC108 is a compact yet versatile guitar amplifier designed for both practice and small performance settings. It features a classic 15-watt output through an 8-inch Bugera speaker, providing a warm and vintage sound that appeals to a variety of musical genres. The amplifier is equipped with a vacuum tube preamp, specifically a 12AX7, which contributes to its rich tonal character and dynamic response. The AC108 includes a range of controls that allow for detailed sound shaping, including separate gain and volume knobs to manage the clean and overdriven tones effectively. It also features a 2-band EQ with treble and bass controls, allowing users to tweak the tonal balance to suit their preferences.

For added versatility, the AC108 comes with a CD input, enabling users to jam along with their favorite tracks. The dedicated headphone output ensures silent practice sessions without compromising the sound quality. This model also includes a vintage-style VTC (Virtual Tube Circuitry) that enhances the natural tube-like sound experience. The amplifier’s stylish retro design, along with its robust build, makes it an appealing choice for musicians who value both aesthetics and durability. The Behringer AC108 is ideal for guitarists seeking classic tones in a portable and affordable package, making it suitable for beginners and seasoned players who require a reliable practice amp.

Behringer AC108 F.A.Q.

How do I connect the Behringer AC108 to an external speaker cabinet?

To connect the AC108 to an external speaker cabinet, use the speaker output jack located on the rear panel. Ensure the impedance of the speaker cabinet matches the specifications of the AC108 to avoid damage.

What is the proper way to change the vacuum tube in the Behringer AC108?

First, ensure the amplifier is turned off and unplugged. Allow the tube to cool down before handling. Remove the rear panel to access the tube compartment, carefully remove the old tube, and replace it with a compatible new one. Ensure the pins are aligned properly.

How can I reduce the hum noise from my Behringer AC108?

Check and secure all cable connections, ensure that the amp is connected to a properly grounded power outlet, and keep it away from electronic devices that may cause interference. Additionally, consider using a power conditioner.

What maintenance is required for the Behringer AC108 to ensure optimal performance?

Regularly check and clean the unit to remove dust build-up. Inspect the vacuum tube for signs of wear and replace if necessary. Ensure all knobs and inputs are functioning correctly, and keep the amplifier in a dry, cool place when not in use.

My AC108 isn't turning on. What troubleshooting steps should I take?

Check that the power cable is securely connected and that the outlet is functional. Inspect the power switch and fuse for any issues. If the problem persists, consult a professional technician.

Can I use pedals with the Behringer AC108, and if so, how should I connect them?

Yes, you can use pedals with the AC108. Connect your guitar to the pedal input, and the pedal output to the amplifier input. Adjust the pedal settings to achieve the desired sound.

What type of vacuum tube does the Behringer AC108 use?

The Behringer AC108 uses a 12AX7 preamp tube, which is a common type used in many guitar amplifiers.

How do I clean the exterior of the Behringer AC108 without damaging it?

Use a soft, dry cloth to gently wipe the exterior surfaces. For tougher grime, slightly dampen the cloth with water, but avoid using any harsh chemicals or solvents.

What should I do if the sound from my AC108 is distorted or unclear?

Check the input and output connections, ensure the volume and gain settings are not too high, and inspect the condition of the vacuum tube. If the issue persists, consult a technician.

How can I safely transport my Behringer AC108 to gigs or rehearsals?

Use a padded amplifier cover or case to protect the AC108 during transport. Secure the amplifier in your vehicle to prevent movement, and avoid exposing it to extreme temperatures.