Roland AC-33 Acoustic Chorus Guitar Amplifier - B-Stock

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Key Features

  • 30 watts of stereo acoustic sound through twin speakers
  • Dual-channel configuration: Guitar and Mic/Line
  • Reverb, chorus, and ambience effects
  • Runs on AC power or eight AA batteries
  • Onboard Phrase Looper

Roland AC-33 Acoustic Chorus Guitar Amplifier - B-Stock Overview

This is a B-Stock item. Please note that B-Stock items are either ex display, ex repair, or have previously been returned by another customer.



Rich, deep, stereo sound to go - the Roland AC-33 is the world's first battery-powered amp made specifically for acoustic guitar. Portable yet powerful, the AC-33 provides true stereo sound, Guitar and Mic/Line channels, custom-tailored effects, anti-feedback, and a Phrase Looper. But this amp was made to go places no amp has gone before. Thanks to its battery-power capability, the AC-33 lets you take your act anywhere: into the backwoods, onto the streets, or wherever your imagination leads you.





Please note, this is a B-Stock item. B-stock items are either ex repair or have previously been returned by another customer. The original boxing and manual may be missing, and there may be some slight signs of usage.
Otherwise, the unit operates as new.

This is a great opportunity to buy a fully functioning product at a discounted price, supplied with a two-year warranty.



Software bundled with the original new product may have been registered or may no longer be included.

Nearly New: This product may have been opened for quality control purposes, returned by a customer, refurbished, or may have non-essential parts or software missing. Otherwise, the product operates as new. This is a great opportunity to buy a fully functioning product at a discounted price.

Product Ref: 122724

Full Description

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Equipped with Roland's latest DSP technology, the AC-33 amp, delivers pure, rich acoustic sound with projection far beyond its size. Its true stereo design (15 watts x 2) enables brilliant stereo/multi-band chorus with "Wide" mode, plus shimmering reverb and 3D-type ambience effects tailored specifically for acoustic guitar.

Strum and Sing

The AC-33 provides two discrete channels: Guitar and Mic/Line. Plug in an acoustic guitar and a microphone (or line-level instrument) and mix them separately. Both channels have dedicated controls for volume, multi-band EQ, and chorus. The Mic/line channel offers both XLR and 1/4" inputs. You can also connect an MP3/CD player to the stereo AUX input for play-along practice or performance. Master volume, reverb, ambience, and anti-feedback are provided as well.

Phrase Looper

The AC-33's onboard Phrase Looper lets you record, loop, and jam over your own guitar riffs or incoming audio from the AUX input. Record and loop up to 40 seconds at a time, and amaze your listeners with sound-on-sound performances that you create on the spot.

Features/Specifications:

  • 30 watts (15 W+15 W) of natural, stereo acoustic sound through twin speakers
  • Runs on AC power or eight AA batteries (or AA rechargeable Ni-MH batteries)
  • Dual-channel configuration: Guitar and Mic/Line channel
  • Reverb, chorus, and ambience effects (Ambience adds spatial, 3D-type depth to the sound)
  • Phrase Looper with 40 seconds of record time
  • Stereo AUX input (connect MP3/CD players, etc), headphone output
  • Anti-feedback function
  • Built-in tilt-back stand
  • Removable battery cartridge for easy battery replacement

Further Specs:

  • Rated Power Output:
    • 15 W + 15 W (when using the AC adaptor)
    • 10 W + 10 W (when using the Alkaline batteries)
  • Nominal Input Level (1 kHz):
    • GUITAR Channel: -10 dBu
    • MIC/LINE Channel: -50 dBu/-20 dBu
    • AUX IN: -10 dBu
  • Nominal Output Level (1 kHz): LINE OUT: -10 dBu
  • Speakers: 12 cm (5 inches) x 2

    • Controls:

    • [GUITAR Channel]:
    • VOLUME Knob:
    • BASS Knob
    • MIDDLE Knob
    • TREBLE Knob
    • CHORUS Switch (OFF, SPACE, WIDE)
  • [MIC/LINE Channel]
    • VOLUME Knob
    • BASS Knob
    • TREBLE Knob
    • CHORUS Switch (OFF, SPACE, WIDE)
  • [REVERB/AMBIENCE]
    • REVERB/AMBIENCE Knob
  • [ANTI-FEEDBACK]
    • ON/OFF Switch
  • [LOOPER]
    • REC/PLAY/OVERDUB Button
    • STOP/CLEAR Button
  • [AUX IN Controls]
    • LEVEL Knob
    • MASTER Knob
    • POWER Switch
  • Indicators: REC, PLAY, OVERDUB, POWER

    • Connectors:

  • Guitar: Channel Input Jack (1/4-inch phone type)
  • MIC/LINE: Channel Input Jacks(XLR type, Balanced) - (1/4-inch TRS phone type, Balanced)
  • AUX IN Jacks: L, R (RCA phono type)-(Stereo miniature phone type)
  • LINE OUT Jacks: L (MONO), R (1/4-inch phone type)
  • PHONES Jack: (Stereo 1/4-inch phone type)
  • DC IN Jack
  • FOOT SW Jack:[EFFECTS]:
    • (TIP: CHORUS, RING: REVERB/AMBIENCE)
    • (1/4-inch TRS phone type)
  • FOOT SW Jack:[LOOPER]
    • (TIP: REC/PLAY/OVERDUB, RING: STOP/CLEAR)
    • (1/4-inch TRS phone type)

    Power Supply:

    • AC Adaptor (included, DC 13 V)
    • Dry battery LR6 (AA) type (alkaline) x 8
    • Rechargeable Ni-MH battery (AA, HR6) type x 8
  • Current Draw: 490 mA
  • Expected battery life under continuous use:
    • Alkaline battery: Approx. 8 hours
    • Rechargeable Ni-MH battery (AA, HR6): Approx. 9 hours
    • These figures will vary depending on the actual conditions of use.

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