Contents

USING THE UNIT SAFELY
IMPORTANT NOTES
Connecting the Power
- Connecting the AC adaptor
- Installing batteries
Producing Sound
- Turning the power on/off
- Playing your guitar
- Outputting sound from your microphone
- Outputting sound from a CD player
- Using headphones
Applying an effect
- Chorus
- Reverb/Ambience
Names of Things and What They Do
- Control Panel
- Jack Panel
Looper Function
- Looper function
Anti Feedback Function
- Anti Feedback function
Various Ways to Use the AC-33
- Singer/performer
- Miking your instrument
- Guitar duo
- Blending sound from two types of pickups
- Using the Looper function to record, play back, and play along with a rhythm
Using the Arm Stand
Troubleshooting
Block Diagram
Main Specifications

Roland A-33 Owner's Manual

Pages 16

Year 2009

Language(s)

of 16

Roland A-33 Specification

The Roland A-33 Amplifier is a versatile and robust audio amplification device designed for high-quality sound performance. It features a solid-state design, providing reliable performance for various audio applications. The A-33 offers a power output of 30 watts per channel, suitable for small to medium-sized venues or personal studio use. It incorporates a wide frequency response range, ensuring accurate sound reproduction across all audible frequencies. The amplifier includes a 3-band EQ with adjustable bass, mid, and treble controls, allowing users to fine-tune the audio output to their preferences.

The A-33 is equipped with multiple input and output options, including XLR and 1/4-inch jacks, facilitating connectivity with a range of audio devices and instruments. It supports both mono and stereo configurations, offering flexibility for different sound reinforcement setups. Additionally, the amplifier features a built-in limiter to prevent distortion and protect connected speakers from damage due to overloading.

The design of the Roland A-33 emphasizes durability and portability, with a rugged chassis that can withstand the rigors of transport and live performance environments. Its compact size and lightweight construction make it easy to handle and install in various settings. The amplifier also incorporates an efficient cooling system to maintain optimal operating temperatures, ensuring consistent performance even during extended use.

Overall, the Roland A-33 Amplifier is a reliable solution for musicians and audio professionals seeking a compact yet powerful amplification option. Its combination of high-quality sound output, user-friendly controls, and robust construction makes it a suitable choice for various audio applications.

Roland A-33 F.A.Q.

How do I connect the Roland A-33 to an external speaker?

To connect the Roland A-33 to an external speaker, use a standard 1/4 inch audio cable. Connect one end to the 'Line Out' port on the amplifier and the other end to the input on the speaker. Ensure the amplifier is turned off while making connections to avoid any damage.

What should I do if the Roland A-33 amplifier is not powering on?

First, check if the power cable is securely connected to both the amplifier and the power outlet. Ensure the outlet is functioning by testing it with another device. If the amplifier still doesn't power on, inspect the fuse and replace it if necessary. If issues persist, consult a professional technician.

How can I maintain the Roland A-33 for optimal performance?

Regularly clean the amplifier using a soft, dry cloth to prevent dust buildup. Keep it in a well-ventilated area to avoid overheating. Check cables and connections periodically for wear and tear. It is also advisable to have the amplifier serviced by a professional annually.

What is the best way to troubleshoot sound distortion issues with the Roland A-33?

Begin by reducing the volume and gain settings to see if distortion decreases. Check all cables for damage or loose connections. Try using different cables and speakers to identify if the issue is with the amplifier. If the problem persists, it may require servicing by a qualified technician.

Can I use the Roland A-33 with a guitar?

Yes, the Roland A-33 can be used with a guitar. Connect the guitar to the amplifier using a standard instrument cable. Adjust the settings on the amplifier to tailor the sound to your preference.

How do I perform a factory reset on the Roland A-33?

To perform a factory reset, turn off the amplifier. Hold down the 'Reset' button while turning the amplifier back on. Continue holding the button until the reset process is complete. Ensure you back up any important settings, as this will restore the amplifier to its original factory settings.

What is the recommended way to store the Roland A-33 when not in use?

When storing the Roland A-33, ensure it is unplugged and covered with a dust cover. Store it in a cool, dry place away from direct sunlight and moisture. Avoid stacking heavy objects on top of it to prevent damage.

How can I eliminate hum or buzzing noises from the Roland A-33?

Check for grounding issues by ensuring all equipment is connected to the same power source. Use high-quality cables and avoid running audio cables parallel to power cables. If the problem persists, consider using a power conditioner to stabilize the electrical supply.

Is it possible to use headphones with the Roland A-33?

Yes, you can use headphones with the Roland A-33. Plug your headphones into the 'Headphone' jack on the amplifier. Make sure to adjust the volume to a comfortable level before use.

What are the common signs that the Roland A-33 might need servicing?

Common signs include intermittent sound, excessive noise, distortion, or failure to power on. If settings are not saving or if there is a noticeable loss in sound quality, it may also indicate the need for servicing. Address these issues promptly to prevent further damage.