Acoustic Chorus Guitar Amplifier
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
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.
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.
Specifications
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
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
In the interest of product improvement, the specifications and/or appearance of this unit are subject to change without prior notice.
