Roland AC-33 Acoustic Chorus Guitar Amplifier

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MSRP: $556.50
(You save $156.51 )

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Product Overview


Rich, deep, stereo sound to go — introducing the AC-33, 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.

  • 30 watts (15W+15W) of natural, stereo acoustic sound through twin speakers
  • Runs on AC power or eight AA batteries (accepts rechargeable NiMH types)
  • 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
  • Now available in rosewood finish (model # AC-33-RW)
  • Natural, Stereo Sound

    Equipped with Roland’s latest DSP technology, the AC-33, 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.SPECIFICATIONSRated Power Output15 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 dBuNominal Output Level (1 kHz)LINE OUT: -10 dBuSpeakers12 cm (5 inches) x 2Controls[GUITAR Channel]
    VOLUME Knob
    BASS Knob
    MIDDLE Knob
    TREBLE Knob

    [MIC/LINE Channel]
    VOLUME Knob
    BASS Knob
    TREBLE Knob


    ON/OFF Switch

    STOP/CLEAR Button

    [AUX IN Controls]
    LEVEL Knob
    MASTER Knob
    POWER SwitchIndicatorsREC, PLAY, OVERDUB
    POWERConnectorsGUITAR 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)
    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)
    DC IN JackPower SupplyAC Adaptor (included, DC 13 V),
    Dry battery LR6 (AA) type (alkaline) x 8, or
    Rechargeable Ni-MH battery (AA, HR6) type x 8Current Draw490 mAExpected battery life under continuous useAlkaline battery: Approx. 8 hours
    Rechargeable Ni-MH battery (AA, HR6): Approx. 9 hours
    These figures will vary depending on the actual conditions of use.AccessoriesOwner’s Manual, AC Adaptor, AC CordOptions (Sold separately)Footswitch: BOSS FS-5U, Dual Footswitch: BOSS FS-6, FS-7SIZE AND WEIGHT (EXCLUDING BATTERIES)Width318 mm
    12-9/16 inchesDepth223 mm
    8-13/16 inchesHeight243 mm
    9-5/8 inchesWeight4.7 kg
    10 lbs. 6 oz.


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