Rich, deep, stereo sound to go introducing the 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. * 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 SoundEquipped 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 SingThe 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 LooperThe 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. * Rated Power Output 15 W 15 W (when using the AC adoptor) 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, Equalizer Knobs (BASS, MIDDLE, TREBLE), CHORUS Switch MIC/LINE Channel: VOLUME Knob, Equalizer Knobs (BASS, TREBLE), CHORUS Switch 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 AUX IN Jacks (RCA phono type, Stereo miniature phone type) LINE OUT (L/MONO, R) Jacks (1/4 phone type) PHONES Jack (Stereo 1/4 phone type) FOOT SWITCH Jacks (1/4 TRS phone type) DC IN Jack * Power Supply AC Adaptor (included, DC 13 V), Dry battery LR6 (AA) type (alkaline) x 8, or Rechargeable battery HR6 (AA) type (nickel metal hydride) x 8 Current Draw 490 mA Expected battery life under continuous use Alkaline: about 8 hours Nickel-metal hydride: about 9 hours These figures will vary depending on the actual conditions of use. * Accessory Owner s Manual, AC Adaptor, AC Cord * Options Foot Switch: BOSS FS-5U, FS-6 Connection Cable: Roland PCS-31L * 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.0 dBu = 0.775 Vrms