The Roland AC-33 offers great Roland tone to acoustic players. The AC-33 is also battery-operable, for amplification on the go.

Roland AC-33 Acoustic Guitar Amp
Rich, deep, stereo sound to go -- introducing the Roland AC-33, the world's first AA 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.

Features
- 30 watts (15W+15W) 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

Natural, Stereo Sound
Equipped with Roland's 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 Roland 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.

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
- 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)
- 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 Jack

Power Supply:
- AC Adaptor (included, DC 13 V),
- Dry battery LR6 (AA) type (alkaline) x 8, or
- 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.

Accessories:
- Owner's Manual, AC Adaptor, AC Cord
- Options (Sold separately)
- Footswitch: BOSS FS-5U, BOSS FS-6

Size and weight (excluding batteries):
- Width: 318 mm, 12-9/16 inches
- Depth: 223 mm, 8-13/16 inches
- Height: 243 mm, 9-5/8 inches
- Weight: 4.7 kg, 10 lbs. 6 oz.