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.
Natural, Stereo Sound
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.
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.
Manufacturer Roland Model AC-33 Acoustic Guitar Amplifier Dimensions (H x W x D) 243 x 318 x 223 mm Weight 4.7 kg 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, Equalizer Knobs (BASS, MIDDLE, TREBLE), CHORUS Switch
MIC/LINE Channel: VOLUME Knob, Equalizer Knobs (BASS, TREBLE), CHORUS Switch
ANTI-FEEDBACK: ON/OFF Switch
LOOPER: REC/PLAY/OVERDUB Button, STOP/CLEAR Button
AUX IN Controls: LEVEL knob
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
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
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