Roland Acoustic Chorus AC-33 Owner's Manual
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Roland Acoustic Chorus AC-33 Owner's Manual

30w acoustic guitar amp
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30 W acoustic guitar amp provides stereo sound in a compact unit
• High-effi ciency 30 W stereo power amp (15 W + 15 W) (when using AC adaptor)
• Compact size for convenient portability or home use
• Two custom 5 inch (12 cm) speakers deliver ideal sound for acoustic instruments
Dual power allows operation using eight AA batteries or an AC adaptor (p. 4)
• Dual power supply lets you use the AC-33 to perform anywhere.
• Rechargeable (nickel-metal hydride) batteries are also supported.
Performing time is approximately 8 hours when using alkaline batteries, and approximately 9 hours when using nickel-metal hydride batteries.
Two-channel design lets you use a guitar simultaneously with a microphone or line source (p. 8)
• Flexibility to cover a wide range of uses, including a guitar duo or a singer/instrumentalist (p. 12).
• Stereo AUX IN connector lets you connect your CD or portable audio player (p. 6).
• You can connect the LINE OUT connector to an external PA system, and use the AC-33 as a monitor during your live performance (p. 9).
• The headphone jack is convenient for night-time practice or during a sound check (p. 6).
Looper function lets you easily record, play, and overdub without needing any other equipment (p. 10)
• You can record your own performance as a backing, and then play it back as an accompaniment for your solo (p. 13).
• Up to 40 seconds of recording time is available. You can also record the AUX IN signal in stereo.
• A separately available foot switch (FS-5U or FS-6) lets you control the Looper function with your foot (p. 11).
Easily-operated eff ects, plus an Anti-Feedback function (p. 11)
• Three types of onboard stereo eff ects are off ered, so you can add a natural sense of spaciousness to the sound of your acoustic guitar (p. 7).
• Anti-Feedback function lets you suppress feedback simply by switching on this function (p. 11).
Before using this unit, carefully read the sections entitled: "USING THE UNIT SAFELY" and "IMPORTANT NOTES" (p. 2; p. 3). These sections provide
important information concerning the proper operation of the unit. Additionally, in order to feel assured that you have gained a good grasp
of every feature provided by your new unit, Owner's manual should be read in its entirety. The manual should be saved and kept on hand as a
convenient reference.
All rights reserved. No part of this publication may be reproduced in any form without the written permission of ROLAND CORPORATION.
Copyright © 2009 ROLAND CORPORATION
Owner's Manual

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Summary of Contents for Roland Acoustic Chorus AC-33

  • Page 1 Owner’s manual should be read in its entirety. The manual should be saved and kept on hand as a convenient reference. All rights reserved. No part of this publication may be reproduced in any form without the written permission of ROLAND CORPORATION. Owner’s Manual...

  • Page 2: Using The Unit Safely

    Do not attempt to repair the unit, or replace parts within it (except when this manual provides specific instructions directing you to do so). Refer all servicing to your retailer, the nearest Roland Service Center, or an authorized Roland distributor, as listed on the “Information” page.

  • Page 3: Important Notes

    IMPORTANT NOTES Power Supply: Use of Batteries • Do not connect this unit to same electrical outlet that is being used by an electrical appliance that is controlled by an inverter (such as a refrigerator, washing machine, microwave oven, or air conditioner), or that contains a motor.

  • Page 4: Connecting The Power

    Connecting the Power The AC-33 can be operated using either an AC adaptor or batteries. Use the type of power that’s appropriate for your situation. Connecting the AC adaptor * Use only the AC adaptor that is supplied with the AC-33. Make sure that the [POWER] switch is off .

  • Page 5: Playing Guitar

    Producing Sound Turning the power on/off Once the connections have been completed, turn on power to your various devices in the order specifi ed. By turning on devices in the wrong order, you risk causing malfunction and/or damage to speakers and other devices.
  • Page 6 Outputting sound from your microphone Connect your microphone, and switch on the AC-33’s power. Connect your microphone to the INPUT jack of the MIC/LINE CHANNEL. You can use any one of three types of plugs (XLR, TRS, phone). You cannot use more than one microphone simultaneously (the TRS/ phone jack will take priority).

  • Page 7: Applying An Eff Ect

    Applying an eff ect Chorus Set each channel’s [CHORUS] switch to the WIDE or SPACE position. This is a stereo chorus that processes the three bands independently. By applying band-appropriate chorusing to each of the low, mid, and high-frequency bands, this eff ect creates a deep and WIDE spacious chorusing that is appropriate for the sound of an acoustic guitar.

  • Page 8: Names Of Things And What They Do

    Names of Things and What They Do Control Panel GUITAR CHANNEL INPUT Jack Connect your guitar here (p. 5). [VOLUME] Knob This adjusts the volume of the guitar channel (p. 5). MIC/LINE CHANNEL INPUT Jack Connect your microphone or line-level device here (p.
  • Page 9 If foot switches are connected, you’ll be able to control the Looper function or turn eff ects on/off using your foot. Connect the included AC You’ll need momentary-type foot switches (BOSS FS-5U or FS-6; sold separately) and a connection cables (Roland PCS-31 or PCS-33; adaptor here (p. 4).
  • Page 10 Looper Function Looper function This function lets you record a phrase you perform, and then play it back repeatedly. You can also overdub additional phrases onto the recording. On the AC-33, this is called the Looper function. REC Indicator This will light red during recording.

  • Page 11: Using A Foot Switch

    Erasing the phrase Hold down the [STOP/CLEAR] button for two or more seconds. The REC indicator will blink, and the phrase will be erased. NOTE The erased phrase cannot be recovered. Copyright * Recording, duplication, distribution, sale, lease, performance, or broadcast of copyrighted material (musical works, visual works, broadcasts, live performances, etc.) belonging to a third party in part or in whole without the permission of the copyright owner is forbidden by law.
  • Page 12 Various Ways to Use the AC-33 Singer/performer You can sing while playing your guitar. • Connect your guitar to the GUITAR CHANNEL. • Connect your microphone to the MIC/LINE CHANNEL. Microphone Guitar duo Here’s how two guitarists can perform. • Connect one guitar to the GUITAR CHANNEL. • Connect the other guitar (with a built-in preamp) to the MIC/LINE CHANNEL.
  • Page 13 Using the Looper function to record, play back, and play along with a rhythm Record the rhythm Handclaps Tap the guitar Press the [REC/PLAY/ OVERDUB] button to start recording. REC Indicator This will light red during recording. MEMO By using a momentary-type foot switch (BOSS FS-5U or FS-6; sold separately) you can operate the Looper’s [REC/PLAY/OVERDUB] button and [STOP/ CLEAR] button with your foot.

  • Page 14: Troubleshooting

    Troubleshooting If the system does not work as you expect, check the following points first. Symptom Cause Power will not turn on: Are the AC adaptor and AC cord connected correctly? Is the AC cord correctly connected to an AC outlet? Power will not turn on Are the batteries installed correctly? Could the batteries have run low?

  • Page 15: Main Specifications

    Owner’s Manual, AC Adaptor, AC Cord Options Foot Switch: BOSS FS-5U, FS-6 Connection Cable: Roland PCS-31, PCS-33 * 0 dBu = 0.775 Vrms * In the interest of product improvement, the specifications and/or appearance of this unit are subject to change without prior notice.
  • Page 16 Connecting the AC adaptor ........4 Installing batteries .
  • Page 17 Information When you need repair service, call your nearest Roland Service Center or authorized Roland distributor in your country as shown below. PHILIPPINES AFRICA G.A. Yupangco & Co. Inc. 339 Gil J. Puyat Avenue Makati, Metro Manila 1200, EGYPT PHILIPPINES...

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