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Roland AC-33RW Acoustic Guitar Amp - Rosewood


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  • 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
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Delivery & Returns

Delivery to UK mainland addresses* is FREE on orders over £75 and up to 30kg. (As a guide, a standard electric guitar weighs approx. 3-5kg).

Delivery on orders below £75 are charged at £4.45!

Delivery to Northern Ireland, the Scottish Highlands & Islands, Isle of Man, Isle of Wight, Channel Islands and the Republic of Ireland. is weight dependant and will be indicated at the checkout

Delivery above 30kg to ANY location will vary according to weight and will be indicated at the checkout

LocationPriceStandard Delivery
UK mainland*FREE on orders over £75 £4.45 on orders under £751-3 working days
Northern Ireland, Scottish Highlands & Islands Isle of Man Isle of Wight Channel Islands Republic of Ireland£12.95 – any order value up to 30kg Over 30kg - please call1-3 working days
OverseasPlease call for detailsPlease call

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Welcome to the Roland AC-33 Acoustic Guitar Amp, the first ever battery-powered amplifier that is designed entirely for use with an acoustic guitar. For such a compact, portable amp it offers a very powerful, stereo sound output, with two available channels, custom effects, looper and a very useful anti-feedback switch. Unlike many preceding acoustic amplifiers, the AC-33 is battery-powered, so you can take it anywhere you want to go. It comes in a striking rosewood finish that shows all the beauty in the natural wooden grains.


The AC-33 is built using the latest Roland DSP technology that gives it that unique rich acoustic output, and although it is a small and compact amp it can produce an incredibly powerful, full-bodied timbre. Built with true stereo dual channel setup (2 x 15 watt speakers), this generates a stereo / multi-band chorus which sounds fantastic. It also has a "wide" mode included as well as a clear reverb that is specifically designed just for an acoustic guitar.

The AC-33 has two channels, Guitar and Mic / Line Input, both of which have designated controls for volume, multi-band EQ and chorus. It caters for you to plug in both an acoustic guitar and a mic at the same time, or two people can plug in and play their acoustics at the same time. If you feel like jamming along to some of your favourite songs, the Roland AC-33 also has an AUX input to plug in an external audio device. If you want to save a layer of something then the AC-33 has a handy Phrase Looper with up to 40 seconds of record time.

Roland also acknowledge that it is fundamental to try and minimalise the possibility of feedback, so they included a great little button to activate the anti-feedback function.

The most versatile feature of the AC-33 amp is that it is battery-operated and has a removable cartridge at the back to easily replace batteries when you need to. The amp also has a built-in tilt stand which can improve your overall sound projection.

The Roland AC-33 is a compact and easily portable acoustic guitar amplifier which sure doesn't compromise on a powerful sound output.

Model AC-33RW Acoustic Guitar Amp
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
Speakers12 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
AUX IN Controls: LEVEL knob
POWER Switch
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 Draw490 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.
Included AccessoriesOwner's Manual, AC Adaptor, AC Cord
Optional Extras Foot Switch: BOSS FS-5U, FS-6
Connection Cable: Roland PCS-31L
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